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href="//donate.wikimedia.org/wiki/Special:FundraiserRedirector?utm_source=donate&utm_medium=sidebar&utm_campaign=C13_it.wikipedia.org&uselang=it" class=""><span>Fai una donazione</span></a> </li> <li id="pt-createaccount-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=Speciale:CreaUtenza&returnto=Hello+world&returntoquery=oldid%3D135081345" title="Si consiglia di registrarsi e di effettuare l'accesso, anche se non è obbligatorio" class=""><span>registrati</span></a> </li> <li id="pt-login-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=Speciale:Entra&returnto=Hello+world&returntoquery=oldid%3D135081345" title="Si consiglia di effettuare l'accesso, anche se non è obbligatorio [o]" accesskey="o" class=""><span>entra</span></a> </li> </ul> </div> </div> </div> <div id="vector-user-links-dropdown" class="vector-dropdown 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<div id="p-user-menu-anon-editor" class="vector-menu mw-portlet mw-portlet-user-menu-anon-editor" > <div class="vector-menu-heading"> Pagine per utenti anonimi <a href="/wiki/Aiuto:Benvenuto" aria-label="Ulteriori informazioni sulla contribuzione"><span>ulteriori informazioni</span></a> </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-anoncontribs" class="mw-list-item"><a href="/wiki/Speciale:MieiContributi" title="Un elenco delle modifiche fatte da questo indirizzo IP [y]" accesskey="y"><span>contributi</span></a></li><li id="pt-anontalk" class="mw-list-item"><a href="/wiki/Speciale:MieDiscussioni" title="Discussioni sulle modifiche fatte da questo indirizzo IP [n]" accesskey="n"><span>discussioni</span></a></li> </ul> </div> </div> </div> </div> </nav> </div> </header> </div> <div class="mw-page-container"> <div class="mw-page-container-inner"> <div class="vector-sitenotice-container"> <div id="siteNotice"></div> </div> <div class="vector-column-start"> <div class="vector-main-menu-container"> <div id="mw-navigation"> <nav id="mw-panel" class="vector-main-menu-landmark" aria-label="Sito"> <div id="vector-main-menu-pinned-container" class="vector-pinned-container"> </div> </nav> </div> </div> <div class="vector-sticky-pinned-container"> <nav id="mw-panel-toc" aria-label="Indice" data-event-name="ui.sidebar-toc" class="mw-table-of-contents-container vector-toc-landmark"> <div id="vector-toc-pinned-container" class="vector-pinned-container"> <div id="vector-toc" class="vector-toc vector-pinnable-element"> <div class="vector-pinnable-header vector-toc-pinnable-header vector-pinnable-header-pinned" data-feature-name="toc-pinned" data-pinnable-element-id="vector-toc" > <h2 class="vector-pinnable-header-label">Indice</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">sposta nella barra laterale</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">nascondi</button> </div> <ul class="vector-toc-contents" id="mw-panel-toc-list"> <li id="toc-mw-content-text" class="vector-toc-list-item vector-toc-level-1"> <a href="#" class="vector-toc-link"> <div class="vector-toc-text">Inizio</div> </a> </li> <li id="toc-Storia" class="vector-toc-list-item vector-toc-level-1"> <a class="vector-toc-link" href="#Storia"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>Storia</span> </div> </a> <ul id="toc-Storia-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Esempi" class="vector-toc-list-item vector-toc-level-1"> <a class="vector-toc-link" href="#Esempi"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Esempi</span> </div> </a> <button aria-controls="toc-Esempi-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Attiva/disattiva la sottosezione Esempi</span> </button> <ul id="toc-Esempi-sublist" class="vector-toc-list"> <li id="toc-BASIC" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#BASIC"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.1</span> <span>BASIC</span> </div> </a> <ul id="toc-BASIC-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Bash" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Bash"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.2</span> <span>Bash</span> </div> </a> <ul id="toc-Bash-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Batch" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Batch"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.3</span> <span>Batch</span> </div> </a> <ul id="toc-Batch-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-C" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#C"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.4</span> <span>C</span> </div> </a> <ul id="toc-C-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-C++" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#C++"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.5</span> <span>C++</span> </div> </a> <ul id="toc-C++-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-C#" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#C#"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.6</span> <span>C#</span> </div> </a> <ul id="toc-C#-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Dart" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Dart"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.7</span> <span>Dart</span> </div> </a> <ul id="toc-Dart-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Go" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Go"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.8</span> <span>Go</span> </div> </a> <ul id="toc-Go-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Haskell" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Haskell"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.9</span> <span>Haskell</span> </div> </a> <ul id="toc-Haskell-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-HTML" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#HTML"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.10</span> <span>HTML</span> </div> </a> <ul id="toc-HTML-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Java" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Java"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.11</span> <span>Java</span> </div> </a> <ul id="toc-Java-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-JavaScript" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#JavaScript"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.12</span> <span>JavaScript</span> </div> </a> <ul id="toc-JavaScript-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Lua" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Lua"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.13</span> <span>Lua</span> </div> </a> <ul id="toc-Lua-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Objective_C" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Objective_C"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.14</span> <span>Objective C</span> </div> </a> <ul id="toc-Objective_C-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Pascal" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Pascal"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.15</span> <span>Pascal</span> </div> </a> <ul id="toc-Pascal-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-PHP" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#PHP"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.16</span> <span>PHP</span> </div> </a> <ul id="toc-PHP-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Rust" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Rust"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.17</span> <span>Rust</span> </div> </a> <ul id="toc-Rust-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Powershell" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Powershell"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.18</span> <span>Powershell</span> </div> </a> <ul id="toc-Powershell-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Python" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Python"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.19</span> <span>Python</span> </div> </a> <ul id="toc-Python-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Ruby" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Ruby"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.20</span> <span>Ruby</span> </div> </a> <ul id="toc-Ruby-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Swift" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Swift"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.21</span> <span>Swift</span> </div> </a> <ul id="toc-Swift-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Clojure" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Clojure"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.22</span> <span>Clojure</span> </div> </a> <ul id="toc-Clojure-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Note" class="vector-toc-list-item vector-toc-level-1"> <a class="vector-toc-link" href="#Note"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Note</span> </div> </a> <ul id="toc-Note-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Bibliografia" class="vector-toc-list-item vector-toc-level-1"> <a class="vector-toc-link" href="#Bibliografia"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Bibliografia</span> </div> </a> <ul id="toc-Bibliografia-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Voci_correlate" class="vector-toc-list-item vector-toc-level-1"> <a class="vector-toc-link" href="#Voci_correlate"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>Voci correlate</span> </div> </a> <ul id="toc-Voci_correlate-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Altri_progetti" class="vector-toc-list-item vector-toc-level-1"> <a class="vector-toc-link" href="#Altri_progetti"> <div class="vector-toc-text"> <span class="vector-toc-numb">6</span> <span>Altri progetti</span> </div> </a> <ul id="toc-Altri_progetti-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Collegamenti_esterni" class="vector-toc-list-item vector-toc-level-1"> <a class="vector-toc-link" href="#Collegamenti_esterni"> <div class="vector-toc-text"> <span class="vector-toc-numb">7</span> <span>Collegamenti esterni</span> </div> </a> <ul id="toc-Collegamenti_esterni-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Indice" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="Mostra/Nascondi l'indice" > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">Mostra/Nascondi l'indice</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Hello world</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Vai a una voce in un'altra lingua. Disponibile in 69 lingue" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-69" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">69 lingue</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D8%A8%D8%B1%D9%86%D8%A7%D9%85%D8%AC_%D8%A3%D9%87%D9%84%D8%A7_%D8%A8%D8%A7%D9%84%D8%B9%D8%A7%D9%84%D9%85" title="برنامج أهلا بالعالم - arabo" lang="ar" hreflang="ar" data-title="برنامج أهلا بالعالم" data-language-autonym="العربية" data-language-local-name="arabo" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-ast mw-list-item"><a href="https://ast.wikipedia.org/wiki/Hola_mundu" title="Hola mundu - asturiano" lang="ast" hreflang="ast" data-title="Hola mundu" data-language-autonym="Asturianu" data-language-local-name="asturiano" class="interlanguage-link-target"><span>Asturianu</span></a></li><li class="interlanguage-link interwiki-az mw-list-item"><a href="https://az.wikipedia.org/wiki/Hello,_World!" title="Hello, World! - azerbaigiano" lang="az" hreflang="az" data-title="Hello, World!" data-language-autonym="Azərbaycanca" data-language-local-name="azerbaigiano" class="interlanguage-link-target"><span>Azərbaycanca</span></a></li><li class="interlanguage-link interwiki-bar mw-list-item"><a href="https://bar.wikipedia.org/wiki/Servus-Woid-Programm" title="Servus-Woid-Programm - bavarese" lang="bar" hreflang="bar" data-title="Servus-Woid-Programm" data-language-autonym="Boarisch" data-language-local-name="bavarese" class="interlanguage-link-target"><span>Boarisch</span></a></li><li class="interlanguage-link interwiki-be mw-list-item"><a href="https://be.wikipedia.org/wiki/Hello_world" title="Hello world - bielorusso" lang="be" hreflang="be" data-title="Hello world" data-language-autonym="Беларуская" data-language-local-name="bielorusso" class="interlanguage-link-target"><span>Беларуская</span></a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/Hello,_world" title="Hello, world - bulgaro" lang="bg" hreflang="bg" data-title="Hello, world" data-language-autonym="Български" data-language-local-name="bulgaro" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-bn mw-list-item"><a href="https://bn.wikipedia.org/wiki/%22%E0%A6%B9%E0%A7%8D%E0%A6%AF%E0%A6%BE%E0%A6%B2%E0%A7%8B,_%E0%A6%93%E0%A6%AF%E0%A6%BC%E0%A6%BE%E0%A6%B0%E0%A7%8D%E0%A6%B2%E0%A7%8D%E0%A6%A1!%22_%E0%A6%AA%E0%A7%8D%E0%A6%B0%E0%A7%8B%E0%A6%97%E0%A7%8D%E0%A6%B0%E0%A6%BE%E0%A6%AE" title=""হ্যালো, ওয়ার্ল্ড!" প্রোগ্রাম - bengalese" lang="bn" hreflang="bn" data-title=""হ্যালো, ওয়ার্ল্ড!" প্রোগ্রাম" data-language-autonym="বাংলা" data-language-local-name="bengalese" class="interlanguage-link-target"><span>বাংলা</span></a></li><li class="interlanguage-link interwiki-bs mw-list-item"><a href="https://bs.wikipedia.org/wiki/Hello_world_program" title="Hello world program - bosniaco" lang="bs" hreflang="bs" data-title="Hello world program" data-language-autonym="Bosanski" data-language-local-name="bosniaco" class="interlanguage-link-target"><span>Bosanski</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Hola_m%C3%B3n" title="Hola món - catalano" lang="ca" hreflang="ca" data-title="Hola món" data-language-autonym="Català" data-language-local-name="catalano" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-ckb mw-list-item"><a href="https://ckb.wikipedia.org/wiki/%D8%A8%DB%95%D8%B1%D9%86%D8%A7%D9%85%DB%95%DB%8C_%C2%AB%D8%B3%DA%B5%D8%A7%D9%88%D8%8C_%D8%AC%DB%8C%DA%BE%D8%A7%D9%86!%C2%BB" title="بەرنامەی «سڵاو، جیھان!» - curdo centrale" lang="ckb" hreflang="ckb" data-title="بەرنامەی «سڵاو، جیھان!»" data-language-autonym="کوردی" data-language-local-name="curdo centrale" class="interlanguage-link-target"><span>کوردی</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Hello_world" title="Hello world - ceco" lang="cs" hreflang="cs" data-title="Hello world" data-language-autonym="Čeština" data-language-local-name="ceco" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/Hello_world-program" title="Hello world-program - danese" lang="da" hreflang="da" data-title="Hello world-program" data-language-autonym="Dansk" data-language-local-name="danese" class="interlanguage-link-target"><span>Dansk</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Hallo-Welt-Programm" title="Hallo-Welt-Programm - tedesco" lang="de" hreflang="de" data-title="Hallo-Welt-Programm" data-language-autonym="Deutsch" data-language-local-name="tedesco" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/%CE%A0%CF%81%CF%8C%CE%B3%CF%81%CE%B1%CE%BC%CE%BC%CE%B1_hello_world" title="Πρόγραμμα hello world - greco" lang="el" hreflang="el" data-title="Πρόγραμμα hello world" data-language-autonym="Ελληνικά" data-language-local-name="greco" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/%22Hello,_World!%22_program" title=""Hello, World!" program - inglese" lang="en" hreflang="en" data-title=""Hello, World!" program" data-language-autonym="English" data-language-local-name="inglese" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-eo mw-list-item"><a href="https://eo.wikipedia.org/wiki/Saluton,_Mondo!" title="Saluton, Mondo! - esperanto" lang="eo" hreflang="eo" data-title="Saluton, Mondo!" data-language-autonym="Esperanto" data-language-local-name="esperanto" class="interlanguage-link-target"><span>Esperanto</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Hola_mundo" title="Hola mundo - spagnolo" lang="es" hreflang="es" data-title="Hola mundo" data-language-autonym="Español" data-language-local-name="spagnolo" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/Hello_world" title="Hello world - estone" lang="et" hreflang="et" data-title="Hello world" data-language-autonym="Eesti" data-language-local-name="estone" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/Kaixo_mundua" title="Kaixo mundua - basco" lang="eu" hreflang="eu" data-title="Kaixo mundua" data-language-autonym="Euskara" data-language-local-name="basco" class="interlanguage-link-target"><span>Euskara</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D8%A8%D8%B1%D9%86%D8%A7%D9%85%D9%87_%C2%AB%D8%B3%D9%84%D8%A7%D9%85%D8%8C_%D8%AF%D9%86%DB%8C%D8%A7!%C2%BB" title="برنامه «سلام، دنیا!» - persiano" lang="fa" hreflang="fa" data-title="برنامه «سلام، دنیا!»" data-language-autonym="فارسی" data-language-local-name="persiano" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/Hei_maailma_-ohjelma" title="Hei maailma -ohjelma - finlandese" lang="fi" hreflang="fi" data-title="Hei maailma -ohjelma" data-language-autonym="Suomi" data-language-local-name="finlandese" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Hello_world" title="Hello world - francese" lang="fr" hreflang="fr" data-title="Hello world" data-language-autonym="Français" data-language-local-name="francese" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-gl mw-list-item"><a href="https://gl.wikipedia.org/wiki/Ola_mundo" title="Ola mundo - galiziano" lang="gl" hreflang="gl" data-title="Ola mundo" data-language-autonym="Galego" data-language-local-name="galiziano" class="interlanguage-link-target"><span>Galego</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/%D7%AA%D7%95%D7%9B%D7%A0%D7%99%D7%AA_Hello_world" title="תוכנית Hello world - ebraico" lang="he" hreflang="he" data-title="תוכנית Hello world" data-language-autonym="עברית" data-language-local-name="ebraico" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-hi mw-list-item"><a href="https://hi.wikipedia.org/wiki/%22%E0%A4%B9%E0%A5%88%E0%A4%B2%E0%A5%8B,_%E0%A4%B5%E0%A4%B0%E0%A5%8D%E0%A4%B2%E0%A5%8D%E0%A4%A1!%22_%E0%A4%AA%E0%A5%8D%E0%A4%B0%E0%A5%8B%E0%A4%97%E0%A5%8D%E0%A4%B0%E0%A4%BE%E0%A4%AE" title=""हैलो, वर्ल्ड!" प्रोग्राम - hindi" lang="hi" hreflang="hi" data-title=""हैलो, वर्ल्ड!" प्रोग्राम" data-language-autonym="हिन्दी" data-language-local-name="hindi" class="interlanguage-link-target"><span>हिन्दी</span></a></li><li class="interlanguage-link interwiki-hr mw-list-item"><a href="https://hr.wikipedia.org/wiki/%22Hello,_World!%22" title=""Hello, World!" - croato" lang="hr" hreflang="hr" data-title=""Hello, World!"" data-language-autonym="Hrvatski" data-language-local-name="croato" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/%E2%80%9EHell%C3%B3,_vil%C3%A1g!%E2%80%9D_program" title="„Helló, világ!” program - ungherese" lang="hu" hreflang="hu" data-title="„Helló, világ!” program" data-language-autonym="Magyar" data-language-local-name="ungherese" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-hy mw-list-item"><a href="https://hy.wikipedia.org/wiki/Hello,_world!" title="Hello, world! - armeno" lang="hy" hreflang="hy" data-title="Hello, world!" data-language-autonym="Հայերեն" data-language-local-name="armeno" class="interlanguage-link-target"><span>Հայերեն</span></a></li><li class="interlanguage-link interwiki-ia mw-list-item"><a href="https://ia.wikipedia.org/wiki/Hello_World" title="Hello World - interlingua" lang="ia" hreflang="ia" data-title="Hello World" data-language-autonym="Interlingua" data-language-local-name="interlingua" class="interlanguage-link-target"><span>Interlingua</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Hello_world" title="Hello world - indonesiano" lang="id" hreflang="id" data-title="Hello world" data-language-autonym="Bahasa Indonesia" data-language-local-name="indonesiano" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/Hello_world" title="Hello world - giapponese" lang="ja" hreflang="ja" data-title="Hello world" data-language-autonym="日本語" data-language-local-name="giapponese" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-ka mw-list-item"><a href="https://ka.wikipedia.org/wiki/Hello_world" title="Hello world - georgiano" lang="ka" hreflang="ka" data-title="Hello world" data-language-autonym="ქართული" data-language-local-name="georgiano" class="interlanguage-link-target"><span>ქართული</span></a></li><li class="interlanguage-link interwiki-kaa mw-list-item"><a href="https://kaa.wikipedia.org/wiki/%C2%ABHello,_World%C2%BB_programmas%C4%B1" title="«Hello, World» programması - kara-kalpak" lang="kaa" hreflang="kaa" data-title="«Hello, World» programması" data-language-autonym="Qaraqalpaqsha" data-language-local-name="kara-kalpak" class="interlanguage-link-target"><span>Qaraqalpaqsha</span></a></li><li class="interlanguage-link interwiki-kn mw-list-item"><a href="https://kn.wikipedia.org/wiki/%E0%B2%B9%E0%B3%86%E0%B2%B2%E0%B3%8D%E0%B2%B2%E0%B3%8A_%E0%B2%B5%E0%B2%B0%E0%B3%8D%E0%B2%B2%E0%B3%8D%E0%B2%A1%E0%B3%8D_%E0%B2%95%E0%B2%82%E0%B2%AA%E0%B3%8D%E0%B2%AF%E0%B3%82%E0%B2%9F%E0%B2%B0%E0%B3%8D_%E0%B2%AA%E0%B3%8D%E0%B2%B0%E0%B3%8B%E0%B2%97%E0%B3%8D%E0%B2%B0%E0%B3%8D%E0%B2%AF%E0%B2%BE%E0%B2%AE%E0%B3%8D" title="ಹೆಲ್ಲೊ ವರ್ಲ್ಡ್ ಕಂಪ್ಯೂಟರ್ ಪ್ರೋಗ್ರ್ಯಾಮ್ - kannada" lang="kn" hreflang="kn" data-title="ಹೆಲ್ಲೊ ವರ್ಲ್ಡ್ ಕಂಪ್ಯೂಟರ್ ಪ್ರೋಗ್ರ್ಯಾಮ್" data-language-autonym="ಕನ್ನಡ" data-language-local-name="kannada" class="interlanguage-link-target"><span>ಕನ್ನಡ</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%22Hello,_World!%22_%ED%94%84%EB%A1%9C%EA%B7%B8%EB%9E%A8" title=""Hello, World!" 프로그램 - coreano" lang="ko" hreflang="ko" data-title=""Hello, World!" 프로그램" data-language-autonym="한국어" data-language-local-name="coreano" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-lb mw-list-item"><a href="https://lb.wikipedia.org/wiki/Hello-World-Programm" title="Hello-World-Programm - lussemburghese" lang="lb" hreflang="lb" data-title="Hello-World-Programm" data-language-autonym="Lëtzebuergesch" data-language-local-name="lussemburghese" class="interlanguage-link-target"><span>Lëtzebuergesch</span></a></li><li class="interlanguage-link interwiki-lv mw-list-item"><a href="https://lv.wikipedia.org/wiki/Sveika,_pasaule" title="Sveika, pasaule - lettone" lang="lv" hreflang="lv" data-title="Sveika, pasaule" data-language-autonym="Latviešu" data-language-local-name="lettone" class="interlanguage-link-target"><span>Latviešu</span></a></li><li class="interlanguage-link interwiki-min mw-list-item"><a href="https://min.wikipedia.org/wiki/Hello_world" title="Hello world - menangkabau" lang="min" hreflang="min" data-title="Hello world" data-language-autonym="Minangkabau" data-language-local-name="menangkabau" class="interlanguage-link-target"><span>Minangkabau</span></a></li><li class="interlanguage-link interwiki-mk mw-list-item"><a href="https://mk.wikipedia.org/wiki/Hello_World" title="Hello World - macedone" lang="mk" hreflang="mk" data-title="Hello World" data-language-autonym="Македонски" data-language-local-name="macedone" class="interlanguage-link-target"><span>Македонски</span></a></li><li class="interlanguage-link interwiki-ml mw-list-item"><a href="https://ml.wikipedia.org/wiki/%E0%B4%B9%E0%B4%B2%E0%B5%8B_%E0%B4%B5%E0%B5%87%E0%B5%BE%E0%B4%A1%E0%B5%8D_(%E0%B4%95%E0%B4%AE%E0%B5%8D%E0%B4%AA%E0%B5%8D%E0%B4%AF%E0%B5%82%E0%B4%9F%E0%B5%8D%E0%B4%9F%E0%B5%BC_%E0%B4%AA%E0%B5%8D%E0%B4%B0%E0%B5%8B%E0%B4%97%E0%B5%8D%E0%B4%B0%E0%B4%BE%E0%B4%82)" title="ഹലോ വേൾഡ് (കമ്പ്യൂട്ടർ പ്രോഗ്രാം) - malayalam" lang="ml" hreflang="ml" data-title="ഹലോ വേൾഡ് (കമ്പ്യൂട്ടർ പ്രോഗ്രാം)" data-language-autonym="മലയാളം" data-language-local-name="malayalam" class="interlanguage-link-target"><span>മലയാളം</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/Hello_world" title="Hello world - malese" lang="ms" hreflang="ms" data-title="Hello world" data-language-autonym="Bahasa Melayu" data-language-local-name="malese" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Hello_world_(programma)" title="Hello world (programma) - olandese" lang="nl" hreflang="nl" data-title="Hello world (programma)" data-language-autonym="Nederlands" data-language-local-name="olandese" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-nn mw-list-item"><a href="https://nn.wikipedia.org/wiki/Hello_World" title="Hello World - norvegese nynorsk" lang="nn" hreflang="nn" data-title="Hello World" data-language-autonym="Norsk nynorsk" data-language-local-name="norvegese nynorsk" class="interlanguage-link-target"><span>Norsk nynorsk</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/Hello,_world" title="Hello, world - norvegese bokmål" lang="nb" hreflang="nb" data-title="Hello, world" data-language-autonym="Norsk bokmål" data-language-local-name="norvegese bokmål" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Hello_world" title="Hello world - polacco" lang="pl" hreflang="pl" data-title="Hello world" data-language-autonym="Polski" data-language-local-name="polacco" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Programa_Ol%C3%A1_Mundo" title="Programa Olá Mundo - portoghese" lang="pt" hreflang="pt" data-title="Programa Olá Mundo" data-language-autonym="Português" data-language-local-name="portoghese" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wikipedia.org/wiki/Program_Hello,_world!" title="Program Hello, world! - rumeno" lang="ro" hreflang="ro" data-title="Program Hello, world!" data-language-autonym="Română" data-language-local-name="rumeno" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/Hello,_world!" title="Hello, world! - russo" lang="ru" hreflang="ru" data-title="Hello, world!" data-language-autonym="Русский" data-language-local-name="russo" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-sah mw-list-item"><a href="https://sah.wikipedia.org/wiki/Hello_world" title="Hello world - sacha" lang="sah" hreflang="sah" data-title="Hello world" data-language-autonym="Саха тыла" data-language-local-name="sacha" class="interlanguage-link-target"><span>Саха тыла</span></a></li><li class="interlanguage-link interwiki-sco mw-list-item"><a href="https://sco.wikipedia.org/wiki/%22Hello,_World!%22_program" title=""Hello, World!" program - scozzese" lang="sco" hreflang="sco" data-title=""Hello, World!" program" data-language-autonym="Scots" data-language-local-name="scozzese" class="interlanguage-link-target"><span>Scots</span></a></li><li class="interlanguage-link interwiki-sh mw-list-item"><a href="https://sh.wikipedia.org/wiki/Hello_World" title="Hello World - serbo-croato" lang="sh" hreflang="sh" data-title="Hello World" data-language-autonym="Srpskohrvatski / српскохрватски" data-language-local-name="serbo-croato" class="interlanguage-link-target"><span>Srpskohrvatski / српскохрватски</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/Hello_world_program" title="Hello world program - Simple English" lang="en-simple" hreflang="en-simple" data-title="Hello world program" data-language-autonym="Simple English" data-language-local-name="Simple English" class="interlanguage-link-target"><span>Simple English</span></a></li><li class="interlanguage-link interwiki-sk mw-list-item"><a href="https://sk.wikipedia.org/wiki/%E2%80%9EHello,_World!%E2%80%9C" title="„Hello, World!“ - slovacco" lang="sk" hreflang="sk" data-title="„Hello, World!“" data-language-autonym="Slovenčina" data-language-local-name="slovacco" class="interlanguage-link-target"><span>Slovenčina</span></a></li><li class="interlanguage-link interwiki-sl mw-list-item"><a href="https://sl.wikipedia.org/wiki/Pozdravljen,_svet" title="Pozdravljen, svet - sloveno" lang="sl" hreflang="sl" data-title="Pozdravljen, svet" data-language-autonym="Slovenščina" data-language-local-name="sloveno" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-sq mw-list-item"><a href="https://sq.wikipedia.org/wiki/Programi_%22P%C3%ABrsh%C3%ABndetje,_Bot%C3%AB!%22" title="Programi "Përshëndetje, Botë!" - albanese" lang="sq" hreflang="sq" data-title="Programi "Përshëndetje, Botë!"" data-language-autonym="Shqip" data-language-local-name="albanese" class="interlanguage-link-target"><span>Shqip</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/Hello_World" title="Hello World - serbo" lang="sr" hreflang="sr" data-title="Hello World" data-language-autonym="Српски / srpski" data-language-local-name="serbo" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/Hello_World" title="Hello World - svedese" lang="sv" hreflang="sv" data-title="Hello World" data-language-autonym="Svenska" data-language-local-name="svedese" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-ta mw-list-item"><a href="https://ta.wikipedia.org/wiki/%E0%AE%85%E0%AE%95%E0%AE%BF%E0%AE%B2%E0%AE%A4%E0%AF%8D%E0%AE%A4%E0%AF%81%E0%AE%95%E0%AF%8D%E0%AE%95%E0%AF%81_%E0%AE%B5%E0%AE%A3%E0%AE%95%E0%AF%8D%E0%AE%95%E0%AE%AE%E0%AF%8D_(%E0%AE%A8%E0%AE%BF%E0%AE%B0%E0%AE%B2%E0%AF%8D)" title="அகிலத்துக்கு வணக்கம் (நிரல்) - tamil" lang="ta" hreflang="ta" data-title="அகிலத்துக்கு வணக்கம் (நிரல்)" data-language-autonym="தமிழ்" data-language-local-name="tamil" class="interlanguage-link-target"><span>தமிழ்</span></a></li><li class="interlanguage-link interwiki-tg mw-list-item"><a href="https://tg.wikipedia.org/wiki/Hello,_world!" title="Hello, world! - tagico" lang="tg" hreflang="tg" data-title="Hello, world!" data-language-autonym="Тоҷикӣ" data-language-local-name="tagico" class="interlanguage-link-target"><span>Тоҷикӣ</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B9%82%E0%B8%9B%E0%B8%A3%E0%B9%81%E0%B8%81%E0%B8%A3%E0%B8%A1%E0%B9%80%E0%B8%AE%E0%B8%A5%E0%B9%82%E0%B8%A5%E0%B9%80%E0%B8%A7%E0%B8%B4%E0%B8%A5%E0%B8%94%E0%B9%8C" title="โปรแกรมเฮลโลเวิลด์ - thailandese" lang="th" hreflang="th" data-title="โปรแกรมเฮลโลเวิลด์" data-language-autonym="ไทย" data-language-local-name="thailandese" class="interlanguage-link-target"><span>ไทย</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/Merhaba_d%C3%BCnya_program%C4%B1" title="Merhaba dünya programı - turco" lang="tr" hreflang="tr" data-title="Merhaba dünya programı" data-language-autonym="Türkçe" data-language-local-name="turco" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/Hello_world!" title="Hello world! - ucraino" lang="uk" hreflang="uk" data-title="Hello world!" data-language-autonym="Українська" data-language-local-name="ucraino" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-ur mw-list-item"><a href="https://ur.wikipedia.org/wiki/%DB%81%DB%8C%D9%84%D9%88_%D9%88%D8%B1%D9%84%DA%88_%D9%BE%D8%B1%D9%88%DA%AF%D8%B1%D8%A7%D9%85" title="ہیلو ورلڈ پروگرام - urdu" lang="ur" hreflang="ur" data-title="ہیلو ورلڈ پروگرام" data-language-autonym="اردو" data-language-local-name="urdu" class="interlanguage-link-target"><span>اردو</span></a></li><li class="interlanguage-link interwiki-uz mw-list-item"><a href="https://uz.wikipedia.org/wiki/Hello,_World!" title="Hello, World! - uzbeco" lang="uz" hreflang="uz" data-title="Hello, World!" data-language-autonym="Oʻzbekcha / ўзбекча" data-language-local-name="uzbeco" class="interlanguage-link-target"><span>Oʻzbekcha / ўзбекча</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/%22Hello,_World!%22_(ch%C6%B0%C6%A1ng_tr%C3%ACnh_m%C3%A1y_t%C3%ADnh)" title=""Hello, World!" (chương trình máy tính) - vietnamita" lang="vi" hreflang="vi" data-title=""Hello, World!" (chương trình máy tính)" data-language-autonym="Tiếng Việt" data-language-local-name="vietnamita" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-wuu mw-list-item"><a href="https://wuu.wikipedia.org/wiki/Hello_World" title="Hello World - wu" lang="wuu" hreflang="wuu" data-title="Hello World" data-language-autonym="吴语" data-language-local-name="wu" class="interlanguage-link-target"><span>吴语</span></a></li><li class="interlanguage-link interwiki-xmf mw-list-item"><a href="https://xmf.wikipedia.org/wiki/Hello_world" title="Hello world - mengrelio" lang="xmf" hreflang="xmf" data-title="Hello world" data-language-autonym="მარგალური" data-language-local-name="mengrelio" class="interlanguage-link-target"><span>მარგალური</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/Hello_World" title="Hello World - cinese" lang="zh" hreflang="zh" data-title="Hello World" data-language-autonym="中文" data-language-local-name="cinese" class="interlanguage-link-target"><span>中文</span></a></li><li class="interlanguage-link interwiki-zh-yue mw-list-item"><a href="https://zh-yue.wikipedia.org/wiki/Hello_World" title="Hello World - cantonese" lang="yue" hreflang="yue" data-title="Hello World" data-language-autonym="粵語" data-language-local-name="cantonese" class="interlanguage-link-target"><span>粵語</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q131303#sitelinks-wikipedia" title="Modifica collegamenti interlinguistici" class="wbc-editpage">Modifica collegamenti</a></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav aria-label="Namespace"> <div id="p-associated-pages" class="vector-menu vector-menu-tabs mw-portlet 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class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> </div> <div id="siteSub" class="noprint">Da Wikipedia, l'enciclopedia libera.</div> </div> <div id="contentSub"><div id="mw-content-subtitle"><div class="cdx-message cdx-message--block cdx-message--warning mw-revision"><span class="cdx-message__icon"></span><div class="cdx-message__content"><div id="mw-revision-info">Versione del 22 ago 2023 alle 17:36 di <a href="/wiki/Speciale:Contributi/87.3.46.16" class="mw-userlink mw-anonuserlink" title="Speciale:Contributi/87.3.46.16" data-mw-revid="135081345"><bdi>87.3.46.16</bdi></a> <span class="mw-usertoollinks">(<a href="/wiki/Discussioni_utente:87.3.46.16" class="mw-usertoollinks-talk" title="Discussioni utente:87.3.46.16">discussione</a>)</span> <span class="comment">(<span class="autocomment"><a href="#BASIC">→<bdi dir="ltr">BASIC</bdi></a></span>)</span></div><div id="mw-revision-nav">(<a href="/w/index.php?title=Hello_world&diff=prev&oldid=135081345" title="Hello world">diff</a>) <a href="/w/index.php?title=Hello_world&direction=prev&oldid=135081345" title="Hello world">← Versione meno recente</a> | <a href="/wiki/Hello_world" title="Hello world">Versione attuale</a> (<a href="/w/index.php?title=Hello_world&diff=cur&oldid=135081345" title="Hello world">diff</a>) | <a href="/w/index.php?title=Hello_world&direction=next&oldid=135081345" title="Hello world">Versione più recente →</a> (<a href="/w/index.php?title=Hello_world&diff=next&oldid=135081345" title="Hello world">diff</a>)</div></div></div></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="it" dir="ltr"><style data-mw-deduplicate="TemplateStyles:r130658281">body:not(.skin-minerva) .mw-parser-output .hatnote.nota-disambigua{clear:both;margin-top:0;padding:.05em .5em}</style> <style data-mw-deduplicate="TemplateStyles:r139142988">.mw-parser-output .hatnote-content{align-items:center;display:flex}.mw-parser-output .hatnote-icon{flex-shrink:0}.mw-parser-output .hatnote-icon img{display:flex}.mw-parser-output .hatnote-text{font-style:italic}body:not(.skin-minerva) .mw-parser-output .hatnote{border:1px solid #CCC;display:flex;margin:.5em 0;padding:.2em .5em}body:not(.skin-minerva) .mw-parser-output .hatnote-text{padding-left:.5em}body.skin-minerva .mw-parser-output .hatnote-icon{padding-right:8px}body.skin-minerva .mw-parser-output .hatnote-icon img{height:auto;width:16px}body.skin--responsive .mw-parser-output .hatnote a.new{color:#d73333}body.skin--responsive .mw-parser-output .hatnote a.new:visited{color:#a55858}</style> <div class="hatnote noprint nota-disambigua"> <div class="hatnote-content"><span class="noviewer hatnote-icon" typeof="mw:File"><span><img src="//upload.wikimedia.org/wikipedia/commons/thumb/b/bc/Nota_disambigua.svg/18px-Nota_disambigua.svg.png" decoding="async" width="18" height="18" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/b/bc/Nota_disambigua.svg/27px-Nota_disambigua.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/b/bc/Nota_disambigua.svg/36px-Nota_disambigua.svg.png 2x" data-file-width="200" data-file-height="200" /></span></span> <span class="hatnote-text"><a href="/wiki/Aiuto:Disambiguazione" title="Aiuto:Disambiguazione">Disambiguazione</a> – Se stai cercando altri significati, vedi <b><a href="/wiki/Hello_world_(disambigua)" class="mw-disambig" title="Hello world (disambigua)">Hello world (disambigua)</a></b>.</span></div> </div> <figure class="mw-default-size mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/File:Hello_World_Perl_GTk2.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/5/54/Hello_World_Perl_GTk2.png/220px-Hello_World_Perl_GTk2.png" decoding="async" width="220" height="197" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/54/Hello_World_Perl_GTk2.png/330px-Hello_World_Perl_GTk2.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/54/Hello_World_Perl_GTk2.png/440px-Hello_World_Perl_GTk2.png 2x" data-file-width="498" data-file-height="447" /></a><figcaption>L'<a href="/wiki/Interfaccia_grafica" title="Interfaccia grafica">interfaccia grafica</a> di un programma scritto in <a href="/wiki/Perl" title="Perl">Perl</a> che stampa il messaggio "<i>Hello world!</i>"</figcaption></figure> <p>In <a href="/wiki/Informatica" title="Informatica">informatica</a> <b>Hello world!</b> (in <a href="/wiki/Lingua_italiana" title="Lingua italiana">italiano</a> "<i>Ciao mondo!</i>") è un semplice <a href="/wiki/Programma_(informatica)" title="Programma (informatica)">programma</a> dimostrativo, frequentemente utilizzato nella didattica di base, che produce come risultato - <a href="/wiki/Input/output" title="Input/output">output</a> - la scritta "<i>Hello world!</i>" o altre varianti, sfruttando i cosiddetti <a href="/wiki/Canali_standard" title="Canali standard">canali standard</a> (<a href="/wiki/Standard_output" class="mw-redirect" title="Standard output">standard output</a>)<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup>. Il programma non fa altro dunque che far comparire a schermo questa scritta e, per tradizione, diversi manuali di <a href="/wiki/Programmazione_(informatica)" title="Programmazione (informatica)">programmazione</a> lo citano spesso per mostrarlo come primo esempio di <a href="/wiki/Lessico" title="Lessico">lessico</a>, <a href="/wiki/Sintassi" title="Sintassi">sintassi</a> e <a href="/wiki/Semantica" title="Semantica">semantica</a> basilare di un certo <a href="/wiki/Linguaggio_di_programmazione" title="Linguaggio di programmazione">linguaggio di programmazione</a>.<sup id="cite_ref-bash-hello_2-0" class="reference"><a href="#cite_note-bash-hello-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-python-hello_3-0" class="reference"><a href="#cite_note-python-hello-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-php-hello_4-0" class="reference"><a href="#cite_note-php-hello-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Storia">Storia</h2></div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Cpp_in_GNU_emacs.png" class="mw-file-description"><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/5/59/Cpp_in_GNU_emacs.png/220px-Cpp_in_GNU_emacs.png" decoding="async" width="220" height="161" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/59/Cpp_in_GNU_emacs.png/330px-Cpp_in_GNU_emacs.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/59/Cpp_in_GNU_emacs.png/440px-Cpp_in_GNU_emacs.png 2x" data-file-width="710" data-file-height="519" /></a><figcaption>Codice ed esecuzione del programma scritto in <a href="/wiki/C%2B%2B" title="C++">C++</a> all'interno di <a href="/wiki/Emacs" title="Emacs">Emacs</a> </figcaption></figure> <p>La scritta viene stampata a video dal primo programma di esempio scritto in <a href="/wiki/C_(linguaggio)" class="mw-redirect" title="C (linguaggio)">C</a> all'inizio del libro <i><a href="/wiki/Il_linguaggio_C" title="Il linguaggio C">Il linguaggio C</a></i> degli informatici <a href="/wiki/Brian_Kernighan" title="Brian Kernighan">Brian Kernighan</a> e <a href="/wiki/Dennis_Ritchie" title="Dennis Ritchie">Dennis Ritchie</a>. La versione corrente non è quella originale: all'inizio il testo era semplicemente "hello, world", senza maiuscola e punto esclamativo, che sono entrati nella tradizione solo in seguito. </p><p>Il codice originale era questo:<sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-highlight mw-highlight-lang-c mw-content-ltr" dir="ltr"><pre><span></span><span class="cp">#include</span><span class="w"> </span><span class="cpf"><stdio.h></span> <span class="kt">int</span><span class="w"> </span><span class="nf">main</span><span class="p">(</span><span class="kt">void</span><span class="p">){</span> <span class="w"> </span><span class="n">printf</span><span class="p">(</span><span class="s">"hello, world</span><span class="se">\n</span><span class="s">"</span><span class="p">);</span> <span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span> <span class="p">}</span> </pre></div> <p>Secondo un'ulteriore versione, molto controversa, il primo <i>Hello, world!</i> noto fu scritto diverso tempo prima in linguaggio <a href="/wiki/BCPL" title="BCPL">BCPL</a>. </p> <div class="mw-heading mw-heading2"><h2 id="Esempi">Esempi</h2></div> <div class="mw-heading mw-heading3"><h3 id="BASIC"><a href="/wiki/BASIC" title="BASIC">BASIC</a></h3></div> <div class="mw-highlight mw-highlight-lang-basic mw-content-ltr" dir="ltr"><pre><span></span><span class="kr">PRINT</span><span class="w"> </span><span class="s2">"Hello, World!"</span> </pre></div> <div class="mw-heading mw-heading3"><h3 id="Bash"><a href="/wiki/Bash" title="Bash">Bash</a></h3></div> <div class="mw-highlight mw-highlight-lang-basic mw-content-ltr" dir="ltr"><pre><span></span><span class="vg">echo</span><span class="w"> </span><span class="s2">"Hello, World!"</span> </pre></div> <div class="mw-heading mw-heading3"><h3 id="Batch"><a href="/wiki/Cmd.exe" title="Cmd.exe">Batch</a></h3></div> <div class="mw-highlight mw-highlight-lang-batch mw-content-ltr" dir="ltr"><pre><span></span><span class="p">@</span><span class="k">echo</span> off <span class="k">echo</span> Hello World! <span class="k">exit</span> </pre></div> <div class="mw-heading mw-heading3"><h3 id="C"><a href="/wiki/C_(linguaggio)" class="mw-redirect" title="C (linguaggio)">C</a></h3></div> <div class="mw-highlight mw-highlight-lang-c mw-content-ltr" dir="ltr"><pre><span></span><span class="cp">#include</span><span class="w"> </span><span class="cpf"><stdio.h></span> <span class="kt">int</span><span class="w"> </span><span class="nf">main</span><span class="p">(</span><span class="kt">void</span><span class="p">)</span><span class="w"> </span><span class="p">{</span> <span class="w"> </span><span class="n">printf</span><span class="p">(</span><span class="s">"Hello World!"</span><span class="p">);</span> <span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span> <span class="p">}</span> </pre></div> <div class="mw-heading mw-heading3"><h3 id="C++"><span id="C.2B.2B"></span><a href="/wiki/C%2B%2B" title="C++">C++</a></h3></div> <div class="mw-highlight mw-highlight-lang-c++ mw-content-ltr" dir="ltr"><pre><span></span><span class="cp">#include</span><span class="w"> </span><span class="cpf"><iostream></span> <span class="k">using</span><span class="w"> </span><span class="k">namespace</span><span class="w"> </span><span class="nn">std</span><span class="p">;</span> <span class="kt">int</span><span class="w"> </span><span class="nf">main</span><span class="p">()</span><span class="w"> </span><span class="p">{</span> <span class="w"> </span><span class="n">cout</span><span class="w"> </span><span class="o"><<</span><span class="w"> </span><span class="s">"Hello World!"</span><span class="w"> </span><span class="o"><<</span><span class="w"> </span><span class="n">endl</span><span class="p">;</span> <span class="p">}</span> </pre></div><p><a href="/wiki/Rust_(linguaggio_di_programmazione)" title="Rust (linguaggio di programmazione)"><b>Rust</b></a></p><div class="mw-highlight mw-highlight-lang-rust mw-content-ltr" dir="ltr"><pre><span></span><span class="k">fn</span> <span class="nf">main</span><span class="p">(){</span> <span class="w"> </span><span class="fm">println!</span><span class="p">(</span><span class="s">"Hello World"</span><span class="p">);</span> <span class="p">}</span> </pre></div> <div class="mw-heading mw-heading3"><h3 id="C#"><span id="C.23"></span><a href="/wiki/C_Sharp" class="mw-redirect" title="C Sharp">C#</a></h3></div> <div class="mw-highlight mw-highlight-lang-c# mw-content-ltr" dir="ltr"><pre><span></span><span class="k">using</span><span class="w"> </span><span class="nn">System</span><span class="p">;</span> <span class="k">class</span><span class="w"> </span><span class="nc">App</span> <span class="p">{</span> <span class="w"> </span><span class="k">static</span><span class="w"> </span><span class="k">void</span><span class="w"> </span><span class="nf">Main</span><span class="p">()</span><span class="w"> </span><span class="p">{</span> <span class="w"> </span><span class="n">Console</span><span class="p">.</span><span class="n">WriteLine</span><span class="p">(</span><span class="s">"Hello World!"</span><span class="p">);</span> <span class="w"> </span><span class="p">}</span> <span class="p">}</span> </pre></div> <div class="mw-heading mw-heading3"><h3 id="Dart"><a href="/wiki/Dart_(linguaggio)" class="mw-redirect" title="Dart (linguaggio)">Dart</a></h3></div> <div class="mw-highlight mw-highlight-lang-c# mw-content-ltr" dir="ltr"><pre><span></span><span class="k">void</span><span class="w"> </span><span class="nf">main</span><span class="p">()</span><span class="w"> </span><span class="p">{</span> <span class="w"> </span><span class="n">print</span><span class="p">(</span><span class="err">'</span><span class="n">Hello</span><span class="p">,</span><span class="w"> </span><span class="n">World</span><span class="o">!</span><span class="err">'</span><span class="p">);</span> <span class="p">}</span> </pre></div> <div class="mw-heading mw-heading3"><h3 id="Go"><a href="/wiki/Go_(linguaggio_di_programmazione)" title="Go (linguaggio di programmazione)">Go</a></h3></div> <div class="mw-highlight mw-highlight-lang-go mw-content-ltr" dir="ltr"><pre><span></span><span class="kn">package</span><span class="w"> </span><span class="nx">main</span> <span class="kn">import</span><span class="w"> </span><span class="s">"fmt"</span> <span class="kd">func</span><span class="w"> </span><span class="nx">main</span><span class="p">()</span><span class="w"> </span><span class="p">{</span> <span class="w"> </span><span class="nx">fmt</span><span class="p">.</span><span class="nx">Println</span><span class="p">(</span><span class="s">"Hello World!"</span><span class="p">)</span> <span class="p">}</span><span class="nx">append</span> </pre></div> <div class="mw-heading mw-heading3"><h3 id="Haskell"><a href="/wiki/Haskell_(linguaggio)" class="mw-redirect" title="Haskell (linguaggio)">Haskell</a></h3></div> <div class="mw-highlight mw-highlight-lang-haskell mw-content-ltr" dir="ltr"><pre><span></span><span class="nf">main</span><span class="w"> </span><span class="ow">::</span><span class="w"> </span><span class="kt">IO</span><span class="w"> </span><span class="nb">()</span> <span class="nf">main</span><span class="w"> </span><span class="ow">=</span><span class="w"> </span><span class="n">putStrLn</span><span class="w"> </span><span class="s">"Hello World!"</span> </pre></div> <div class="mw-heading mw-heading3"><h3 id="HTML"><a href="/wiki/HTML" title="HTML">HTML</a></h3></div> <div class="mw-highlight mw-highlight-lang-haskell mw-content-ltr" dir="ltr"><pre><span></span><span class="o"><!</span><span class="kt">DOCTYPE</span><span class="w"> </span><span class="n">html</span><span class="o">></span> <span class="o"><</span><span class="n">html</span><span class="o">></span> <span class="w"> </span><span class="o"><</span><span class="n">body</span><span class="o">></span> <span class="w"> </span><span class="kt">Hello</span><span class="p">,</span><span class="w"> </span><span class="kt">World</span><span class="o">!</span> <span class="w"> </span><span class="o"></</span><span class="n">body</span><span class="o">></span> <span class="o"></</span><span class="n">html</span><span class="o">></span> </pre></div> <div class="mw-heading mw-heading3"><h3 id="Java"><a href="/wiki/Java_(linguaggio_di_programmazione)" title="Java (linguaggio di programmazione)">Java</a></h3></div> <div class="mw-highlight mw-highlight-lang-java mw-content-ltr" dir="ltr"><pre><span></span><span class="kd">class</span> <span class="nc">HelloWorld</span> <span class="p">{</span> <span class="w"> </span><span class="kd">public</span><span class="w"> </span><span class="kd">static</span><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="nf">main</span><span class="p">(</span><span class="n">String</span><span class="o">[]</span><span class="w"> </span><span class="n">args</span><span class="p">)</span> <span class="w"> </span><span class="p">{</span> <span class="w"> </span><span class="n">System</span><span class="p">.</span><span class="na">out</span><span class="p">.</span><span class="na">println</span><span class="p">(</span><span class="s">"Hello World!"</span><span class="p">);</span> <span class="w"> </span><span class="p">}</span> <span class="p">}</span> </pre></div> <div class="mw-heading mw-heading3"><h3 id="JavaScript"><a href="/wiki/JavaScript" title="JavaScript">JavaScript</a></h3></div> <div class="mw-highlight mw-highlight-lang-javascript mw-content-ltr" dir="ltr"><pre><span></span><span class="nx">console</span><span class="p">.</span><span class="nx">log</span><span class="p">(</span><span class="s2">"Hello World!"</span><span class="p">);</span> </pre></div> <div class="mw-heading mw-heading3"><h3 id="Lua"><a href="/wiki/Lua" title="Lua">Lua</a></h3></div> <div class="mw-highlight mw-highlight-lang-lua mw-content-ltr" dir="ltr"><pre><span></span><span class="nb">print</span><span class="p">(</span><span class="s2">"Hello World!"</span><span class="p">)</span> </pre></div> <div class="mw-heading mw-heading3"><h3 id="Objective_C"><a href="/wiki/Objective_C" class="mw-redirect" title="Objective C">Objective C</a></h3></div> <div class="mw-highlight mw-highlight-lang-objective-c mw-content-ltr" dir="ltr"><pre><span></span><span class="cp">#import <Foundation/Foundation.h></span> <span class="kt">int</span><span class="w"> </span><span class="nf">main</span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">argc</span><span class="p">,</span><span class="w"> </span><span class="k">const</span><span class="w"> </span><span class="kt">char</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="n">argv</span><span class="p">[])</span><span class="w"> </span><span class="p">{</span> <span class="w"> </span><span class="p">@</span><span class="n">mylak</span><span class="w"> </span><span class="p">{</span> <span class="w"> </span><span class="n">NSLog</span><span class="p">(</span><span class="s">@"Hello World!"</span><span class="p">);</span> <span class="w"> </span><span class="p">}</span> <span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span> <span class="p">}</span> </pre></div> <div class="mw-heading mw-heading3"><h3 id="Pascal"><a href="/wiki/Pascal_(linguaggio_di_programmazione)" title="Pascal (linguaggio di programmazione)">Pascal</a></h3></div> <div class="mw-highlight mw-highlight-lang-pascal mw-content-ltr" dir="ltr"><pre><span></span><span class="k">program</span><span class="w"> </span><span class="n">Hello</span><span class="o">;</span> <span class="k">begin</span> <span class="w"> </span><span class="nb">writeln</span><span class="w"> </span><span class="p">(</span><span class="s">'Hello World!'</span><span class="p">)</span> <span class="k">end</span><span class="o">.</span> </pre></div> <div class="mw-heading mw-heading3"><h3 id="PHP"><a href="/wiki/PHP" title="PHP">PHP</a></h3></div> <div class="mw-highlight mw-highlight-lang-php mw-content-ltr" dir="ltr"><pre><span></span><span class="cp"><?php</span> <span class="k">echo</span> <span class="s2">"Hello World!"</span><span class="p">;</span> <span class="cp">?></span> </pre></div> <div class="mw-heading mw-heading3"><h3 id="Rust"><a href="/wiki/Rust_(linguaggio_di_programmazione)" title="Rust (linguaggio di programmazione)">Rust</a></h3></div> <div class="mw-highlight mw-highlight-lang-rust mw-content-ltr" dir="ltr"><pre><span></span><span class="k">fn</span> <span class="nf">main</span><span class="p">(){</span> <span class="w"> </span><span class="fm">println!</span><span class="p">(</span><span class="s">"Hello, world!"</span><span class="p">);</span> <span class="p">}</span> </pre></div> <div class="mw-heading mw-heading3"><h3 id="Powershell"><a href="/wiki/PowerShell" title="PowerShell">Powershell</a></h3></div> <div class="mw-highlight mw-highlight-lang-powershell mw-content-ltr" dir="ltr"><pre><span></span><span class="nb">Write-Host</span> <span class="s1">'Hello World!'</span> </pre></div> <div class="mw-heading mw-heading3"><h3 id="Python"><a href="/wiki/Python" title="Python">Python</a></h3></div> <div class="mw-highlight mw-highlight-lang-python mw-content-ltr" dir="ltr"><pre><span></span><span class="nb">print</span><span class="p">(</span><span class="s2">"Hello World!"</span><span class="p">)</span> </pre></div> <div class="mw-heading mw-heading3"><h3 id="Ruby"><a href="/wiki/Ruby_(linguaggio_di_programmazione)" title="Ruby (linguaggio di programmazione)">Ruby</a></h3></div> <div class="mw-highlight mw-highlight-lang-ruby mw-content-ltr" dir="ltr"><pre><span></span><span class="nb">puts</span><span class="s2">"Hello World!"</span> </pre></div> <div class="mw-heading mw-heading3"><h3 id="Swift"><a href="/wiki/Swift_(linguaggio_di_programmazione)" title="Swift (linguaggio di programmazione)">Swift</a></h3></div> <div class="mw-highlight mw-highlight-lang-swift mw-content-ltr" dir="ltr"><pre><span></span><span class="bp">print</span><span class="p">(</span><span class="s">"Hello, World!"</span><span class="p">)</span> </pre></div> <div class="mw-heading mw-heading3"><h3 id="Clojure"><a href="/wiki/Clojure" title="Clojure">Clojure</a></h3></div> <div class="mw-highlight mw-highlight-lang-clojure mw-content-ltr" dir="ltr"><pre><span></span><span class="p">(</span><span class="nb">println </span><span class="s">"Hello world!"</span><span class="p">)</span> </pre></div> <div class="mw-heading mw-heading2"><h2 id="Note">Note</h2></div> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-1"><a href="#cite_ref-1"><b>^</b></a> <span class="reference-text"> <cite class="citation web" style="font-style:normal">(<span style="font-weight:bolder; font-size:80%"><abbr title="inglese">EN</abbr></span>) <a rel="nofollow" class="external text" href="https://www.gnu.org/fun/jokes/helloworld.html"><span style="font-style:italic;">Hello World!</span></a>, su <span style="font-style:italic;"><a href="/wiki/GNU" title="GNU">GNU</a></span>. <small>URL consultato il 25 febbraio 2015</small>.<br /><div class="cite-q">«PRINT "HELLO WORLD"»</div></cite></span> </li> <li id="cite_note-bash-hello-2"><a href="#cite_ref-bash-hello_2-0"><b>^</b></a> <span class="reference-text"><cite class="citation web" style="font-style:normal">(<span style="font-weight:bolder; font-size:80%"><abbr title="inglese">EN</abbr></span>) <a rel="nofollow" class="external text" href="http://tldp.org/HOWTO/Bash-Prog-Intro-HOWTO-2.html"><span style="font-style:italic;">Traditional hello world script</span></a>, su <span style="font-style:italic;">tldp.org</span>. <small>URL consultato il 25 febbraio 2015</small>.<br /><div class="cite-q">«echo Hello World»</div></cite></span> </li> <li id="cite_note-python-hello-3"><a href="#cite_ref-python-hello_3-0"><b>^</b></a> <span class="reference-text"><cite class="citation web" style="font-style:normal"> <a rel="nofollow" class="external text" href="http://www.python.it/doc/Easytut/easytut-it/node4.html"><span style="font-style:italic;">Stampare</span></a>, su <span style="font-style:italic;"><a href="/wiki/Python" title="Python">Python</a></span>. <small>URL consultato il 25 febbraio 2015</small>.<br /><div class="cite-q">«print "Hello, World!"»</div></cite></span> </li> <li id="cite_note-php-hello-4"><a href="#cite_ref-php-hello_4-0"><b>^</b></a> <span class="reference-text"><cite class="citation web" style="font-style:normal"> <a rel="nofollow" class="external text" href="https://web.archive.org/web/20150308225314/http://php.net/manual/it/tutorial.firstpage.php"><span style="font-style:italic;">La prima pagina PHP</span></a>, su <span style="font-style:italic;"><a href="/wiki/PHP" title="PHP">PHP</a></span>. <small>URL consultato il 25 febbraio 2015</small> <small>(archiviato dall'<abbr title="https://php.net/manual/it/tutorial.firstpage.php">url originale</abbr> l'8 marzo 2015)</small>.<br /><div class="cite-q">«echo "Hello World!";»</div></cite></span> </li> <li id="cite_note-5"><a href="#cite_ref-5"><b>^</b></a> <span class="reference-text">(<span style="font-weight:bolder; font-size:80%"><abbr title="inglese">EN</abbr></span>) <cite class="citation libro" style="font-style:normal"> Brian Kernighan, Dennis M. Ritchie, <span style="font-style:italic;">The C Programming Language, Second Edition (Ansi C)</span>, Prentice Hall, 1988, <a href="/wiki/Speciale:RicercaISBN/9780131103627" class="internal mw-magiclink-isbn">ISBN 978-0131103627</a>.</cite></span> </li> </ol></div> <div class="mw-heading mw-heading2"><h2 id="Bibliografia">Bibliografia</h2></div> <ul><li><cite class="citation libro" style="font-style:normal"> <a href="/wiki/Brian_Kernighan" title="Brian Kernighan">Brian W. Kernighan</a>, <a href="/wiki/Dennis_Ritchie" title="Dennis Ritchie">Dennis M. Ritchie</a>, <span style="font-style:italic;">Linguaggio C</span>, 1ª ed., Englewood Cliffs, <a href="/wiki/Gruppo_Editoriale_Jackson" title="Gruppo Editoriale Jackson">Gruppo Editoriale Jackson</a>, 1985, <a href="/wiki/ISBN" title="ISBN">ISBN</a> <a href="/wiki/Speciale:RicercaISBN/88-7192-200-X" title="Speciale:RicercaISBN/88-7192-200-X">88-7192-200-X</a>.</cite></li></ul> <div class="mw-heading mw-heading2"><h2 id="Voci_correlate">Voci correlate</h2></div> <ul><li><a href="/wiki/C_(linguaggio)" class="mw-redirect" title="C (linguaggio)">C (linguaggio)</a></li> <li><a href="/wiki/Brian_Kernighan" title="Brian Kernighan">Brian Kernighan</a></li> <li><a href="/wiki/Dennis_Ritchie" title="Dennis Ritchie">Dennis Ritchie</a></li> <li><a href="/wiki/Programmazione_(informatica)" title="Programmazione (informatica)">Programmazione (informatica)</a></li> <li><a href="/wiki/Proof_of_concept" title="Proof of concept">Proof of concept</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="Altri_progetti">Altri progetti</h2></div> <div id="interProject" class="toccolours" style="display: none; clear: both; margin-top: 2em"><p id="sisterProjects" style="background-color: #efefef; color: black; font-weight: bold; margin: 0"><span>Altri progetti</span></p><ul title="Collegamenti verso gli altri progetti Wikimedia"> <li class="" title=""><a href="https://it.wikibooks.org/wiki/Hello_world" class="extiw" title="b:Hello world">Wikibooks</a></li> <li class="" title=""><span class="plainlinks" title="commons:Category:Hello World"><a class="external text" href="https://commons.wikimedia.org/wiki/Category:Hello_World?uselang=it">Wikimedia Commons</a></span></li></ul></div> <ul><li><span typeof="mw:File"><a href="https://it.wikibooks.org/wiki/" title="Collabora a Wikibooks"><img alt="Collabora a Wikibooks" src="//upload.wikimedia.org/wikipedia/commons/thumb/f/fa/Wikibooks-logo.svg/18px-Wikibooks-logo.svg.png" decoding="async" width="18" height="18" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/fa/Wikibooks-logo.svg/27px-Wikibooks-logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/fa/Wikibooks-logo.svg/36px-Wikibooks-logo.svg.png 2x" data-file-width="300" data-file-height="300" /></a></span> <a href="https://it.wikibooks.org/wiki/" class="extiw" title="b:">Wikibooks</a> contiene testi o manuali su <b><a href="https://it.wikibooks.org/wiki/Hello_world" class="extiw" title="b:Hello world">Hello world</a></b></li> <li><span typeof="mw:File"><a href="https://commons.wikimedia.org/wiki/?uselang=it" title="Collabora a Wikimedia Commons"><img alt="Collabora a Wikimedia Commons" src="//upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/18px-Commons-logo.svg.png" decoding="async" width="18" height="24" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/27px-Commons-logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/4/4a/Commons-logo.svg/36px-Commons-logo.svg.png 2x" data-file-width="1024" data-file-height="1376" /></a></span> <span class="plainlinks"><a class="external text" href="https://commons.wikimedia.org/wiki/?uselang=it">Wikimedia Commons</a></span> contiene immagini o altri file su <b><span class="plainlinks"><a class="external text" href="https://commons.wikimedia.org/wiki/Category:Hello_World?uselang=it">Hello world</a></span></b></li></ul> <div class="mw-heading mw-heading2"><h2 id="Collegamenti_esterni">Collegamenti esterni</h2></div> <ul><li><cite class="citation web" style="font-style:normal"> <a rel="nofollow" class="external text" href="http://helloworldcollection.de/"><span style="font-style:italic;">Hello World Collection</span></a>, su <span style="font-style:italic;">helloworldcollection.de</span>.</cite></li> <li>(<span style="font-weight:bolder; font-size:80%"><abbr title="inglese">EN</abbr></span>) <a rel="nofollow" class="external free" href="https://www.gnu.org/fun/jokes/helloworld.html">https://www.gnu.org/fun/jokes/helloworld.html</a></li></ul> <style data-mw-deduplicate="TemplateStyles:r141815314">.mw-parser-output .navbox{border:1px solid #aaa;clear:both;margin:auto;padding:2px;width:100%}.mw-parser-output .navbox th{padding-left:1em;padding-right:1em;text-align:center}.mw-parser-output .navbox>tbody>tr:first-child>th{background:#ccf;font-size:90%;width:100%;color:var(--color-base,black)}.mw-parser-output .navbox_navbar{float:left;margin:0;padding:0 10px 0 0;text-align:left;width:6em}.mw-parser-output .navbox_title{font-size:110%}.mw-parser-output .navbox_abovebelow{background:#ddf;font-size:90%;font-weight:normal}.mw-parser-output .navbox_group{background:#ddf;font-size:90%;padding:0 10px;white-space:nowrap}.mw-parser-output .navbox_list{font-size:90%;width:100%}.mw-parser-output .navbox_list a{white-space:nowrap}html:not(.vector-feature-night-mode-enabled) .mw-parser-output .navbox_odd{background:#fdfdfd;color:var(--color-base,black)}html:not(.vector-feature-night-mode-enabled) .mw-parser-output .navbox_even{background:#f7f7f7;color:var(--color-base,black)}.mw-parser-output .navbox a.mw-selflink{color:var(--color-base,black)}.mw-parser-output .navbox_center{text-align:center}.mw-parser-output .navbox .navbox_image{padding-left:7px;vertical-align:middle;width:0}.mw-parser-output .navbox+.navbox{margin-top:-1px}.mw-parser-output .navbox .mw-collapsible-toggle{font-weight:normal;text-align:right;width:7em}body.skin--responsive .mw-parser-output .navbox_image img{max-width:none!important}.mw-parser-output .subnavbox{margin:-3px;width:100%}.mw-parser-output .subnavbox_group{background:#e6e6ff;padding:0 10px}@media screen{html.skin-theme-clientpref-night .mw-parser-output .navbox>tbody>tr:first-child>th{background:var(--background-color-interactive)!important}html.skin-theme-clientpref-night .mw-parser-output .navbox th{color:var(--color-base)!important}html.skin-theme-clientpref-night .mw-parser-output .navbox_abovebelow,html.skin-theme-clientpref-night .mw-parser-output .navbox_group{background:var(--background-color-interactive-subtle)!important}html.skin-theme-clientpref-night .mw-parser-output .subnavbox_group{background:var(--background-color-neutral-subtle)!important}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .navbox>tbody>tr:first-child>th{background:var(--background-color-interactive)!important}html.skin-theme-clientpref-os .mw-parser-output .navbox th{color:var(--color-base)!important}html.skin-theme-clientpref-os .mw-parser-output .navbox_abovebelow,html.skin-theme-clientpref-os .mw-parser-output .navbox_group{background:var(--background-color-interactive-subtle)!important}html.skin-theme-clientpref-os .mw-parser-output .subnavbox_group{background:var(--background-color-neutral-subtle)!important}}</style><table class="navbox mw-collapsible mw-collapsed noprint metadata" id="navbox-Principali_linguaggi_di_programmazione"><tbody><tr><th colspan="2"><div class="navbox_navbar"><div class="noprint plainlinks" style="background-color:transparent; padding:0; font-size:xx-small; color:var(--color-base, #000000); white-space:nowrap;"><a href="/wiki/Template:Principali_linguaggi_di_programmazione" title="Template:Principali linguaggi di programmazione"><span title="Vai alla pagina del template">V</span></a> · <a href="/wiki/Discussioni_template:Principali_linguaggi_di_programmazione" title="Discussioni template:Principali linguaggi di programmazione"><span title="Discuti del template">D</span></a> · <a class="external text" href="https://it.wikipedia.org/w/index.php?title=Template:Principali_linguaggi_di_programmazione&action=edit"><span title="Modifica il template. Usa l'anteprima prima di salvare">M</span></a></div></div><span class="navbox_title">Principali <a href="/wiki/Linguaggio_di_programmazione" title="Linguaggio di programmazione">linguaggi di programmazione</a> <small>(<a href="/wiki/Lista_dei_linguaggi_di_programmazione" title="Lista dei linguaggi di programmazione">tutti</a>)</small></span></th></tr><tr><td colspan="2" class="navbox_list navbox_center navbox_odd"><a href="/wiki/ABAP" title="ABAP">ABAP</a><b> ·</b> <a href="/wiki/Ada_(linguaggio_di_programmazione)" title="Ada (linguaggio di programmazione)">Ada</a><b> ·</b> <a href="/wiki/ALGOL" title="ALGOL">ALGOL</a><b> ·</b> <a href="/wiki/APL" title="APL">APL</a><b> ·</b> <a href="/wiki/Linguaggio_assembly" title="Linguaggio assembly">Assembly</a><b> ·</b> <a href="/wiki/Awk" title="Awk">Awk</a><b> ·</b> <a href="/wiki/BASIC" title="BASIC">BASIC</a><b> ·</b> <a href="/wiki/C_(linguaggio_di_programmazione)" title="C (linguaggio di programmazione)">C</a><b> ·</b> <a href="/wiki/C%2B%2B" title="C++">C++</a><b> ·</b> <a href="/wiki/C_sharp" title="C sharp">C#</a><b> ·</b> <a href="/wiki/COBOL" title="COBOL">COBOL</a><b> ·</b> <a href="/wiki/Embarcadero_Delphi" title="Embarcadero Delphi">Delphi</a><b> ·</b> <a href="/wiki/Eiffel_(linguaggio_di_programmazione)" title="Eiffel (linguaggio di programmazione)">Eiffel</a><b> ·</b> <a href="/wiki/Fortran" title="Fortran">Fortran</a><b> ·</b> <a href="/wiki/F_Sharp" title="F Sharp">F#</a><b> ·</b> <a href="/wiki/Haskell_(linguaggio_di_programmazione)" title="Haskell (linguaggio di programmazione)">Haskell</a><b> ·</b> <a href="/wiki/Interactive_Data_Language" title="Interactive Data Language">IDL</a><b> ·</b> <a href="/wiki/Java_(linguaggio_di_programmazione)" title="Java (linguaggio di programmazione)">Java</a><b> ·</b> <a href="/wiki/JavaScript" title="JavaScript">JavaScript</a><b> ·</b> <a href="/wiki/J_sharp" title="J sharp">J#</a><b> ·</b> <a href="/wiki/Lisp" title="Lisp">Lisp</a><b> ·</b> <a href="/wiki/Logo_(informatica)" title="Logo (informatica)">LOGO</a><b> ·</b> <a href="/wiki/Lua" title="Lua">Lua</a><b> ·</b> <a href="/wiki/ML_(linguaggio_di_programmazione)" title="ML (linguaggio di programmazione)">ML</a><b> ·</b> <a href="/wiki/Objective-C" title="Objective-C">Objective-C</a><b> ·</b> <a href="/wiki/OCaml" title="OCaml">OCaml</a><b> ·</b> <a href="/wiki/Pascal_(linguaggio_di_programmazione)" title="Pascal (linguaggio di programmazione)">Pascal</a><b> ·</b> <a href="/wiki/Perl" title="Perl">Perl</a><b> ·</b> <a href="/wiki/PHP" title="PHP">PHP</a><b> ·</b> <a href="/wiki/PL/I" title="PL/I">PL/I</a><b> ·</b> <a href="/wiki/PLaSM" title="PLaSM">PLaSM</a><b> ·</b> <a href="/wiki/Prolog" title="Prolog">Prolog</a><b> ·</b> <a href="/wiki/Python" title="Python">Python</a><b> ·</b> <a href="/wiki/Ruby_(linguaggio_di_programmazione)" title="Ruby (linguaggio di programmazione)">Ruby</a><b> ·</b> <a href="/wiki/Rust_(linguaggio_di_programmazione)" title="Rust (linguaggio di programmazione)">Rust</a><b> ·</b> <a href="/wiki/SAS_(software)" title="SAS (software)">SAS</a><b> ·</b> <a href="/wiki/Scheme" title="Scheme">Scheme</a><b> ·</b> <a href="/wiki/Bourne_shell" title="Bourne shell">sh</a><b> ·</b> <a href="/wiki/Simula" title="Simula">Simula</a><b> ·</b> <a href="/wiki/Smalltalk" title="Smalltalk">Smalltalk</a><b> ·</b> <a href="/wiki/Structured_Query_Language" title="Structured Query Language">SQL</a><b> ·</b> <a href="/wiki/Swift_(linguaggio_di_programmazione)" title="Swift (linguaggio di programmazione)">Swift</a><b> ·</b> <a href="/wiki/Visual_Basic" title="Visual Basic">Visual Basic</a></td></tr></tbody></table> <div class="noprint" style="width:100%; 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