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Free Java DSA Course with Certification for Beginners
<!DOCTYPE html><html lang="en"><head><meta charSet="utf-8"/><meta name="viewport" content="width=device-width"/><title>Free Java DSA Course with Certification for Beginners</title><link rel="canonical" href="https://www.scaler.com/topics/course/dsa-beginners-java/"/><meta name="robots" content="max-snippet:-1, max-video-preview:-1, max-image-preview:large"/><meta name="description" content="Scaler Topics free Java DSA course is designed to help you prepare for data structure and algorithm (DSA) interview questions using Java. It is suitable for beginners who want to learn DSA problem solving and its applications in job interviews."/><meta name="author" content="Subhesh Kumar"/><meta name="category"/><meta property="og:type" content="scaler_topics:course"/><meta property="og:title" content="Java DSA Course - Master the Fundamentals and Beyond"/><meta property="og:description" content="Scaler Topics free Java DSA course is designed to help you prepare for data structure and algorithm (DSA) interview questions using Java. It is suitable for beginners who want to learn DSA problem solving and its applications in job interviews."/><meta property="og:url" content="https://www.scaler.com/topics/course/dsa-beginners-java/"/><meta property="og:site_name" content="Scaler Topics"/><meta property="og:image" content="https://www.scaler.com/topics/images/course_card_image_javadsa.webp"/><meta property="og:image:width" content="844"/><meta property="og:image:height" content="352"/><meta property="og:image:alt" content="Java DSA Course - Master the Fundamentals and Beyond"/><meta property="article:published_time" content="2022-10-19T01:30:00.000Z"/><meta name="twitter:site" content="@ScalerTopics"/><meta name="twitter:card" content="summary_large_image"/><meta name="twitter:title" content="Java DSA Course - Master the Fundamentals and Beyond"/><meta name="twitter:description" content="Scaler Topics free Java DSA course is designed to help you prepare for data structure and algorithm (DSA) interview questions using Java. It is suitable for beginners who want to learn DSA problem solving and its applications in job interviews."/><meta name="twitter:image" content="https://www.scaler.com/topics/images/course_card_image_javadsa.webp"/><meta name="twitter:url" content="https://www.scaler.com/topics/course/dsa-beginners-java/"/><meta name="next-head-count" content="24"/><link rel="icon" href="/topics/favicon.ico"/><link rel="preconnect" href="https://d1g0iq4cbcvjcd.cloudfront.net/topics"/><link rel="dns-prefetch" href="https://d1g0iq4cbcvjcd.cloudfront.net/topics"/><link rel="preload" href="https://d1g0iq4cbcvjcd.cloudfront.net/topics/_next/static/media/0ac14a3c407fb3c4-s.p.woff2" as="font" type="font/woff2" crossorigin="anonymous" data-next-font="size-adjust"/><link rel="preload" href="https://d1g0iq4cbcvjcd.cloudfront.net/topics/_next/static/media/fc6fba7ce0876fef-s.p.woff2" as="font" type="font/woff2" crossorigin="anonymous" data-next-font="size-adjust"/><script id="course-schema" type="application/ld+json" data-nscript="beforeInteractive" crossorigin="anonymous">{ "@context": "https://schema.org", "@id": "https://www.scaler.com/topics/course/dsa-beginners-java/", "@type": "Course", "name": "Java DSA Course - Master the Fundamentals and Beyond", "description": "Free Java DSA Course with Certification for Beginners", "publisher": { "@type": "Organization", "name": "Scaler", "url": "https://www.scaler.com/topics/course/dsa-beginners-java/" }, "provider": { "@type": "Organization", "name": "Scaler Topics", "sameAs": "https://www.scaler.com/topics/course/dsa-beginners-java/" }, "image": [ "https://www.scaler.com/topics/images/course_featured_image_javadsa.webp" ], "totalHistoricalEnrollment": 42138, "educationalLevel": "intermediate", "offers": [{ "@type": "Offer", "category": "Free", "priceCurrency": "INR", "price": 0 }], "about": ["DSA for Beginners with Java","Fundamentals of Data Structures and Algorithms using Java","Java developers and programming enthusiasts"], "teaches": ["Arrays","Linked lists","Stacks","Searching and sorting algorithms","Dynamic programming","Greedy algorithms."], "inLanguage": "en", "syllabusSections": [{"@type":"Syllabus","name":"Arrays","timeRequired":"PT48M"},{"@type":"Syllabus","name":"ArrayList","timeRequired":"PT15M"},{"@type":"Syllabus","name":"Strings","timeRequired":"PT23M"},{"@type":"Syllabus","name":"Sorting","timeRequired":"PT41M"},{"@type":"Syllabus","name":"Recursion","timeRequired":"PT52M"},{"@type":"Syllabus","name":"LinkedList","timeRequired":"PT56M"},{"@type":"Syllabus","name":"Stack and Queue","timeRequired":"PT35M"},{"@type":"Syllabus","name":"Tree","timeRequired":"PT52M"},{"@type":"Syllabus","name":"Heap","timeRequired":"PT22M"},{"@type":"Syllabus","name":"HashMap","timeRequired":"PT45M"},{"@type":"Syllabus","name":"Graph","timeRequired":"PT1H27M"},{"@type":"Syllabus","name":"Dynamic Programming","timeRequired":"PT1H6M"}], "educationalCredentialAwarded": [{ "@type": "EducationalOccupationalCredential", "name": "Certificate Of Excellence", "url": "https://www.scaler.com/topics/course/dsa-beginners-java/", "credentialCategory": "Certificate" }], "hasCourseInstance": [{ "@type": "CourseInstance", "location": { "@type": "VirtualLocation", "url": "https://www.scaler.com/topics/course/dsa-beginners-java/" }, "instructor": [{ "@type": "Person", "name": "Subhesh Kumar", "description": "Software Engineer and Instructor at Scaler", "image": "https://www.scaler.com/topics/images/shreesh_tripathi.webp" }], "courseWorkload": "PT9H9M", "courseMode": "Online" }] }</script><script id="faq-schema" type="application/ld+json" data-nscript="beforeInteractive" crossorigin="anonymous">{ "@context": "https://schema.org", "@type": "FAQPage", "mainEntity":[{"@type":"Question","name":"How can I learn Java DSA interview course if I am a beginner?","acceptedAnswer":{"@type":"Answer","text":"This course is designed for beginners and covers the fundamentals of DSA problem solving using Java. It includes practical examples and coding challenges to help you learn and practice."}},{"@type":"Question","name":"What is covered under this free course?","acceptedAnswer":{"@type":"Answer","text":"The course covers various data structures and algorithms commonly asked in DSA job interviews. It includes topics such as arrays, linked lists, stacks, queues, trees, graphs, searching and sorting algorithms, dynamic programming, greedy algorithms, and more."}},{"@type":"Question","name":"What will you create after finishing this DSA Problem Solving certification course online?","acceptedAnswer":{"@type":"Answer","text":"You will learn how to solve various DSA problems using Java and will have the opportunity to work on coding challenges and quizzes to test your knowledge."}},{"@type":"Question","name":"What are the eligibility criteria for this DSA interview course?","acceptedAnswer":{"@type":"Answer","text":"There are no eligibility criteria for this course. Anyone interested in learning DSA problem solving using Java can enroll and start learning."}},{"@type":"Question","name":"How long does it take to complete this free Java DSA course?","acceptedAnswer":{"@type":"Answer","text":"The course duration of 13 hours, but this is a self-paced course and can be completed at your own pace. On average, it takes about a week to finish the course if you spend 1-2 hours per day."}},{"@type":"Question","name":"What is DSA problem solving used for?","acceptedAnswer":{"@type":"Answer","text":"DSA problem solving is used to solve complex problems by breaking them down into smaller, manageable parts. 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version="1.1" xmlns="http://www.w3.org/2000/svg" width="1em" height="1em" viewBox="0 0 32 32"><path d="M25.665 9.26c0.375-0.376 0.984-0.376 1.359-0.001 0.885 0.884 1.588 1.934 2.067 3.090s0.726 2.395 0.726 3.646-0.246 2.49-0.726 3.646c-0.479 1.156-1.181 2.206-2.067 3.090-0.376 0.375-0.984 0.375-1.359-0.001s-0.375-0.984 0.001-1.359c0.706-0.706 1.267-1.544 1.649-2.466s0.579-1.911 0.579-2.91-0.197-1.987-0.579-2.91c-0.383-0.922-0.943-1.76-1.649-2.466-0.376-0.375-0.376-0.984-0.001-1.359z"></path><path d="M18.804 3.709c0.33 0.161 0.539 0.496 0.539 0.863v22.856c0 0.367-0.209 0.702-0.539 0.864s-0.723 0.121-1.012-0.105l-8.31-6.465h-5.376c-0.51 0-0.999-0.202-1.359-0.563s-0.563-0.85-0.563-1.359v-7.609c0-0.51 0.203-0.999 0.563-1.359s0.849-0.563 1.359-0.563h5.384l8.302-6.455c0.29-0.225 0.683-0.266 1.012-0.105zM17.42 6.537l-7.011 5.451c-0.169 0.131-0.376 0.202-0.59 0.202h-5.713v7.609h5.706c0.214 0 0.421 0.071 0.59 0.203l7.019 5.46v-18.925z"></path><path d="M9.809 10.276c0.531 0 0.961 0.43 0.961 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5-5h16c2.761 0 5 2.239 5 5v12c0 2.761-2.239 5-5 5h-16c-2.761 0-5-2.239-5-5v-12z"></path><path d="M12.498 13.552c-0.486-0.101-0.992-0.054-1.451 0.134s-0.853 0.508-1.13 0.92c-0.277 0.412-0.425 0.898-0.425 1.394s0.148 0.982 0.425 1.394c0.277 0.412 0.67 0.733 1.13 0.92s0.965 0.234 1.451 0.134c0.486-0.101 0.932-0.344 1.279-0.698 0.387-0.394 1.020-0.401 1.414-0.014s0.401 1.020 0.014 1.414c-0.626 0.638-1.427 1.076-2.303 1.257s-1.785 0.097-2.612-0.241c-0.828-0.338-1.536-0.915-2.034-1.657s-0.765-1.616-0.765-2.509c0-0.894 0.266-1.767 0.765-2.509s1.207-1.319 2.034-1.657c0.828-0.338 1.737-0.422 2.612-0.241s1.677 0.618 2.303 1.257c0.387 0.394 0.38 1.028-0.014 1.414s-1.028 0.38-1.414-0.014c-0.348-0.355-0.793-0.598-1.279-0.698z"></path><path d="M21.498 13.552c-0.486-0.101-0.992-0.054-1.451 0.134s-0.853 0.508-1.13 0.92-0.425 0.898-0.425 1.394c0 0.497 0.148 0.982 0.425 1.394s0.67 0.733 1.13 0.92c0.46 0.188 0.965 0.234 1.451 0.134s0.932-0.344 1.279-0.698c0.387-0.394 1.020-0.401 1.414-0.014s0.401 1.020 0.014 1.414c-0.626 0.638-1.427 1.076-2.303 1.257s-1.785 0.097-2.612-0.241c-0.827-0.338-1.536-0.915-2.034-1.657s-0.765-1.616-0.765-2.509c0-0.894 0.266-1.767 0.765-2.509s1.207-1.319 2.034-1.657c0.827-0.338 1.737-0.422 2.612-0.241s1.677 0.618 2.303 1.257c0.387 0.394 0.38 1.028-0.014 1.414s-1.027 0.38-1.414-0.014c-0.348-0.355-0.793-0.598-1.279-0.698z"></path></svg><span class="course-detail_feature_text__jMTxm">Subtitles: English</span></div></div><div class="full-width"><div class="course-description_description_box___e5fA"><div class="course-description_highlights__IxVcw"><div class="column course-description_highlight_container__2QPxE"><div class="row flex-ac"><svg fill="currentColor" class="course-description_course_desc_icon__knhkO" version="1.1" xmlns="http://www.w3.org/2000/svg" width="17" height="18" viewBox="0 0 32 32"><path d="M16 5c-6.075 0-11 4.925-11 11s4.925 11 11 11c6.075 0 11-4.925 11-11s-4.925-11-11-11zM3 16c0-7.18 5.82-13 13-13s13 5.82 13 13c0 7.18-5.82 13-13 13s-13-5.82-13-13z"></path><path d="M16 8c0.552 0 1 0.448 1 1v6h6c0.552 0 1 0.448 1 1s-0.448 1-1 1h-7c-0.552 0-1-0.448-1-1v-7c0-0.552 0.448-1 1-1z"></path></svg><span class="course-description_highlights__title__wAETF">Duration</span></div><span class="course-description_highlight_data__0_3mA">9h 9m (12 Modules)</span></div><div class="column course-description_highlight_container__2QPxE"><div class="row flex-ac"><svg fill="currentColor" class="course-description_course_desc_icon__knhkO" version="1.1" xmlns="http://www.w3.org/2000/svg" width="17" height="17" viewBox="0 0 32 32"><path d="M10.571 19.974c0.581 0.366 0.933 1.005 0.933 1.692v4.333l16-0.006v-2.005c-0.628-0.055-1.243-0.217-1.818-0.481-0.737-0.338-1.39-0.835-1.912-1.455s-0.901-1.348-1.109-2.131-0.24-1.603-0.095-2.401c0.146-0.797 0.466-1.553 0.938-2.212s1.084-1.206 1.792-1.601c0.679-0.379 1.43-0.609 2.203-0.677v-2.021h-4.837c-0.687 0-1.325-0.352-1.692-0.933s-0.409-1.309-0.113-1.929c0.095-0.199 0.145-0.417 0.146-0.637s-0.046-0.439-0.139-0.639c-0.093-0.2-0.228-0.377-0.397-0.519s-0.367-0.245-0.58-0.301c-0.213-0.056-0.436-0.065-0.653-0.026s-0.423 0.126-0.602 0.254c-0.18 0.128-0.329 0.294-0.437 0.486s-0.172 0.406-0.189 0.626l-0.001 0.015c-0.020 0.255 0.027 0.51 0.137 0.741 0.296 0.62 0.253 1.348-0.113 1.928s-1.005 0.933-1.692 0.933h-4.837v4.333c0 0.687-0.352 1.325-0.933 1.692s-1.309 0.409-1.929 0.113c-0.199-0.095-0.417-0.145-0.637-0.146s-0.439 0.046-0.639 0.139c-0.2 0.093-0.377 0.228-0.519 0.397s-0.245 0.367-0.301 0.58c-0.056 0.213-0.065 0.436-0.026 0.653s0.126 0.423 0.254 0.602c0.128 0.18 0.294 0.329 0.486 0.437s0.406 0.172 0.626 0.189l0.015 0.001c0.255 0.020 0.51-0.027 0.741-0.137 0.62-0.296 1.348-0.253 1.928 0.113zM29.503 15.342c-0.549-0.262-1.157-0.374-1.763-0.325-0.079 0.005-0.159 0.014-0.237 0.024-0.431 0.059-0.848 0.199-1.228 0.411-0.45 0.251-0.84 0.599-1.14 1.019s-0.504 0.9-0.597 1.408-0.072 1.029 0.060 1.528c0.132 0.499 0.373 0.962 0.706 1.356s0.748 0.711 1.217 0.926c0.313 0.144 0.645 0.24 0.984 0.287 0.169 0.023 0.34 0.034 0.511 0.032 0.516-0.005 1.024-0.124 1.489-0.349v5.333c0 0.265-0.105 0.52-0.293 0.707s-0.442 0.293-0.707 0.293l-18 0.007c-0.265 0-0.52-0.105-0.707-0.293s-0.293-0.442-0.293-0.707v-5.333c-0.549 0.262-1.157 0.374-1.763 0.325-0.080-0.006-0.159-0.014-0.237-0.026-0.429-0.061-0.844-0.201-1.223-0.414-0.449-0.252-0.836-0.6-1.135-1.019s-0.501-0.899-0.594-1.405c-0.092-0.506-0.072-1.026 0.060-1.524s0.372-0.959 0.703-1.354c0.331-0.394 0.744-0.71 1.211-0.926 0.311-0.144 0.64-0.241 0.977-0.288 0.17-0.024 0.341-0.036 0.514-0.035 0.515 0.003 1.022 0.12 1.486 0.341v-5.333c0-0.265 0.105-0.52 0.293-0.707s0.442-0.293 0.707-0.293h5.837c-0.262-0.549-0.374-1.157-0.325-1.763 0.006-0.080 0.014-0.159 0.026-0.237 0.061-0.429 0.201-0.844 0.414-1.223 0.252-0.449 0.6-0.836 1.019-1.135s0.899-0.501 1.405-0.594c0.506-0.092 1.026-0.072 1.524 0.060s0.959 0.372 1.354 0.703c0.394 0.331 0.71 0.744 0.926 1.211 0.144 0.311 0.241 0.64 0.289 0.977 0.024 0.17 0.036 0.341 0.035 0.514-0.003 0.515-0.12 1.022-0.341 1.486h5.837c0.265 0 0.519 0.105 0.707 0.293s0.293 0.442 0.293 0.707v5.333z"></path></svg><span class="course-description_highlights__title__wAETF">Challenges</span></div><span class="course-description_highlight_data__0_3mA">7 Challenges</span></div><div class="column course-description_highlight_container__2QPxE"><div class="row flex-ac"><svg fill="currentColor" class="course-description_course_desc_icon__knhkO" version="1.1" xmlns="http://www.w3.org/2000/svg" width="17" height="18" viewBox="0 0 36 28"><path d="M20.56 9.4c-1.461-0.6-3.027-0.906-4.606-0.9l-0 0c-6.611 0.023-11.953 5.487-11.953 12.137v2.862h24v-3c0-1.58-0.312-3.144-0.918-4.603s-1.494-2.784-2.613-3.899-2.448-1.998-3.909-2.598zM15.947 6.5c1.843-0.007 3.669 0.35 5.374 1.050s3.255 1.731 4.56 3.031c1.306 1.301 2.342 2.846 3.049 4.549s1.071 3.527 1.071 5.37v3c0 0.531-0.211 1.039-0.586 1.414s-0.884 0.586-1.414 0.586h-24c-0.53 0-1.039-0.211-1.414-0.586s-0.586-0.884-0.586-1.414v-2.862c0-7.725 6.207-14.11 13.946-14.137z"></path><path d="M16 6.5c0.552 0 1 0.448 1 1v4c0 0.552-0.448 1-1 1s-1-0.448-1-1v-4c0-0.552 0.448-1 1-1z"></path><path d="M2.472 16.882c0.143-0.534 0.691-0.85 1.225-0.707l3.875 1.038c0.534 0.143 0.85 0.691 0.707 1.225s-0.691 0.85-1.225 0.707l-3.875-1.038c-0.534-0.143-0.85-0.691-0.707-1.225z"></path><path d="M29.529 16.882c0.143 0.534-0.174 1.082-0.707 1.225l-3.875 1.038c-0.534 0.143-1.082-0.174-1.225-0.707s0.174-1.082 0.707-1.225l3.875-1.038c0.533-0.143 1.082 0.174 1.225 0.707z"></path><path d="M22.081 12.566c0.438 0.336 0.521 0.964 0.184 1.402l-8.55 11.137c-0.336 0.438-0.964 0.521-1.402 0.184s-0.521-0.964-0.184-1.402l8.55-11.138c0.336-0.438 0.964-0.521 1.402-0.184z"></path></svg><span class="course-description_highlights__title__wAETF">Course Level</span></div><span class="course-description_highlight_data__0_3mA">Intermediate</span></div><div class="column course-description_highlight_container__2QPxE"><div class="row flex-ac"><svg fill="currentColor" class="course-description_course_desc_icon__knhkO" version="1.1" xmlns="http://www.w3.org/2000/svg" width="17" height="17" viewBox="0 0 34 32"><path d="M17 5.011c-4.327 0-7.723 3.274-7.723 7.178s3.396 7.178 7.723 7.178c4.327 0 7.724-3.274 7.724-7.178s-3.396-7.178-7.724-7.178zM7.276 12.189c0-5.129 4.415-9.178 9.723-9.178s9.724 4.049 9.724 9.178-4.415 9.178-9.724 9.178c-5.308 0-9.723-4.050-9.723-9.178z"></path><path d="M17 8.276c-2.158 0-3.907 1.749-3.907 3.907s1.749 3.907 3.907 3.907c2.158 0 3.907-1.749 3.907-3.907s-1.749-3.907-3.907-3.907zM11.093 12.183c0-3.262 2.645-5.907 5.907-5.907s5.907 2.645 5.907 5.907c0 3.262-2.645 5.907-5.907 5.907s-5.907-2.645-5.907-5.907z"></path><path d="M12.093 18.276c0.552 0 1 0.448 1 1v7.006l3.418-1.917c0.304-0.17 0.675-0.17 0.978 0l3.418 1.917v-7.006c0-0.552 0.448-1 1-1s1 0.448 1 1v8.713c0 0.355-0.188 0.684-0.495 0.863s-0.685 0.183-0.995 0.009l-4.418-2.478-4.418 2.478c-0.31 0.174-0.688 0.17-0.995-0.009s-0.495-0.508-0.495-0.863v-8.713c0-0.552 0.448-1 1-1z"></path></svg><span class="course-description_highlights__title__wAETF">Certificate</span></div><span class="course-description_highlight_data__0_3mA">Included</span></div></div><div class="course-description_learn_section___4by8"><div class="row flex-ac"><span class="m-r-xs"><svg fill="currentColor" stroke="" class="course-description_course_icon__IYbkT" version="1.1" xmlns="http://www.w3.org/2000/svg" width="56" height="56" viewBox="0 0 32 32"><path d="M26.259 23.289h-20.518c-1.193 0-2.16-0.967-2.16-2.16v0-14.588c0-1.193 0.967-2.16 2.16-2.16v0h20.518c1.193 0 2.16 0.967 2.16 2.16v0 14.588c0 1.193-0.967 2.16-2.16 2.16v0zM5.741 5.501c-0.574 0-1.040 0.466-1.040 1.040v0 14.588c0 0.574 0.466 1.040 1.040 1.040v0h20.518c0.574 0 1.040-0.466 1.040-1.040v0-14.588c0-0.574-0.466-1.040-1.040-1.040v0z"></path><path d="M19.764 27.619h-7.53c-0.309 0-0.56-0.251-0.56-0.56v0c0-0.309 0.251-0.56 0.56-0.56h7.53c0.309 0 0.56 0.251 0.56 0.56v0c0 0.309-0.251 0.56-0.56 0.56v0z"></path><path d="M14.023 9.322c0.116 0 0.223 0.035 0.312 0.096l-0.002-0.001 5.93 3.953c0.151 0.102 0.249 0.272 0.249 0.466s-0.098 0.364-0.247 0.465l-0.002 0.001-5.93 3.953c-0.087 0.059-0.195 0.094-0.31 0.094-0.309 0-0.56-0.25-0.56-0.559v-7.906c0-0.309 0.251-0.56 0.56-0.56v0zM18.943 13.835l-4.36-2.906v5.813z"></path></svg></span><div><h3 class="course-description_headline__one__vARVP">What you鈥檒l learn</h3><div class="course-description_headline__two__X_Epr">The skills that you would learn after taking up this<!-- --> <!-- -->Java DSA Course - Master the Fundamentals and Beyond<!-- --> online course are:</div></div></div><div class="markdown-body course-description_markdownClassName__HFeuP"><ul> <li>Various data structures and algorithms commonly asked in DSA job interviews.</li> <li>It includes topics such as arrays, linked lists, stacks, queues, trees, graphs, searching and sorting algorithms, dynamic programming, greedy algorithms, and more.</li> </ul></div></div></div></div><div class="row full-width course-detail_course_head_wrapper__RNSMH"><h3 class="course-detail_course_heading__xgfYY">Course Content</h3><div class="row flex-ac hide-in-mobile course-detail_course_head_wrapper__expand__EWW9j"><a class="Tappable-module_root__N7ll5 course-detail_course_head_wrapper__btn__KUulJ"><svg fill="currentColor" class="course-detail_course_head_wrapper__icon__RwRec m-r-xxs" version="1.1" xmlns="http://www.w3.org/2000/svg" width="1em" height="1em" viewBox="0 0 32 32"><title>ide-expand</title><path d="M20.2 6c0-0.442 0.358-0.8 0.8-0.8h5c0.442 0 0.8 0.358 0.8 0.8v5c0 0.442-0.358 0.8-0.8 0.8s-0.8-0.358-0.8-0.8v-4.2h-4.2c-0.442 0-0.8-0.358-0.8-0.8z"></path><path d="M26.566 5.434c0.312 0.312 0.312 0.819 0 1.131l-7 7c-0.312 0.312-0.819 0.312-1.131 0s-0.312-0.819 0-1.131l7-7c0.312-0.312 0.819-0.312 1.131 0z"></path><path d="M6 20.2c0.442 0 0.8 0.358 0.8 0.8v4.2h4.2c0.442 0 0.8 0.358 0.8 0.8s-0.358 0.8-0.8 0.8h-5c-0.442 0-0.8-0.358-0.8-0.8v-5c0-0.442 0.358-0.8 0.8-0.8z"></path><path d="M13.566 18.434c0.312 0.312 0.312 0.819 0 1.131l-7 7c-0.312 0.312-0.819 0.312-1.131 0s-0.312-0.819 0-1.131l7-7c0.312-0.312 0.819-0.312 1.131 0z"></path><path d="M26 20.2c0.442 0 0.8 0.358 0.8 0.8v5c0 0.442-0.358 0.8-0.8 0.8h-5c-0.442 0-0.8-0.358-0.8-0.8s0.358-0.8 0.8-0.8h4.2v-4.2c0-0.442 0.358-0.8 0.8-0.8z"></path><path d="M18.434 18.434c0.312-0.312 0.819-0.312 1.131 0l7 7c0.312 0.312 0.312 0.819 0 1.131s-0.819 0.312-1.131 0l-7-7c-0.312-0.312-0.312-0.819 0-1.131z"></path><path d="M5.2 6c0-0.442 0.358-0.8 0.8-0.8h5c0.442 0 0.8 0.358 0.8 0.8s-0.358 0.8-0.8 0.8h-4.2v4.2c0 0.442-0.358 0.8-0.8 0.8s-0.8-0.358-0.8-0.8v-5z"></path><path d="M5.434 5.434c0.312-0.312 0.819-0.312 1.131 0l7 7c0.312 0.312 0.312 0.819 0 1.131s-0.819 0.312-1.131 0l-7-7c-0.312-0.312-0.312-0.819 0-1.131z"></path></svg>Expand all section</a></div></div><div class="m-b-m course-detail_details__z06Ls"><span>12<!-- --> Modules</span><span> | <!-- -->101<!-- --> Lessons</span><span> | <!-- -->9h 9m</span></div><div class="row flex-ac show-in-mobile m-b-m course-detail_course_head_wrapper__expand__EWW9j"><a class="Tappable-module_root__N7ll5 course-detail_course_head_wrapper__btn__KUulJ"><svg fill="currentColor" class="course-detail_course_head_wrapper__icon__RwRec m-r-xxs" version="1.1" xmlns="http://www.w3.org/2000/svg" width="1em" height="1em" viewBox="0 0 32 32"><title>ide-expand</title><path d="M20.2 6c0-0.442 0.358-0.8 0.8-0.8h5c0.442 0 0.8 0.358 0.8 0.8v5c0 0.442-0.358 0.8-0.8 0.8s-0.8-0.358-0.8-0.8v-4.2h-4.2c-0.442 0-0.8-0.358-0.8-0.8z"></path><path d="M26.566 5.434c0.312 0.312 0.312 0.819 0 1.131l-7 7c-0.312 0.312-0.819 0.312-1.131 0s-0.312-0.819 0-1.131l7-7c0.312-0.312 0.819-0.312 1.131 0z"></path><path d="M6 20.2c0.442 0 0.8 0.358 0.8 0.8v4.2h4.2c0.442 0 0.8 0.358 0.8 0.8s-0.358 0.8-0.8 0.8h-5c-0.442 0-0.8-0.358-0.8-0.8v-5c0-0.442 0.358-0.8 0.8-0.8z"></path><path d="M13.566 18.434c0.312 0.312 0.312 0.819 0 1.131l-7 7c-0.312 0.312-0.819 0.312-1.131 0s-0.312-0.819 0-1.131l7-7c0.312-0.312 0.819-0.312 1.131 0z"></path><path d="M26 20.2c0.442 0 0.8 0.358 0.8 0.8v5c0 0.442-0.358 0.8-0.8 0.8h-5c-0.442 0-0.8-0.358-0.8-0.8s0.358-0.8 0.8-0.8h4.2v-4.2c0-0.442 0.358-0.8 0.8-0.8z"></path><path d="M18.434 18.434c0.312-0.312 0.819-0.312 1.131 0l7 7c0.312 0.312 0.312 0.819 0 1.131s-0.819 0.312-1.131 0l-7-7c-0.312-0.312-0.312-0.819 0-1.131z"></path><path d="M5.2 6c0-0.442 0.358-0.8 0.8-0.8h5c0.442 0 0.8 0.358 0.8 0.8s-0.358 0.8-0.8 0.8h-4.2v4.2c0 0.442-0.358 0.8-0.8 0.8s-0.8-0.358-0.8-0.8v-5z"></path><path d="M5.434 5.434c0.312-0.312 0.819-0.312 1.131 0l7 7c0.312 0.312 0.312 0.819 0 1.131s-0.819 0.312-1.131 0l-7-7c-0.312-0.312-0.312-0.819 0-1.131z"></path></svg>Expand all section</a></div><div class="sr_container column flex-c flex-ac course-certificate_course_certificate__vf0AK"><div class="course-certificate_course_certificate__wrapper__gV6E3 row"><div class="course-certificate_course_certificate__left__oWxOw relative column m-r-s"><img 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xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 32 32"><path d="M11.199 7.957c-3.086 0-5.588 2.502-5.588 5.588s2.502 5.588 5.588 5.588c3.086 0 5.588-2.502 5.588-5.588s-2.502-5.588-5.588-5.588zM3.611 13.545c0-4.191 3.397-7.588 7.588-7.588s7.588 3.397 7.588 7.588c0 4.191-3.397 7.588-7.588 7.588s-7.588-3.397-7.588-7.588z"></path><path d="M21.090 6.369h0.003c1.989 0 3.897 0.79 5.303 2.197s2.197 3.314 2.197 5.303-0.79 3.897-2.197 5.303c-1.406 1.407-3.314 2.197-5.303 2.197-0.552 0-1-0.448-1-1s0.448-1 1-1c1.459 0 2.858-0.579 3.889-1.611s1.611-2.43 1.611-3.889c0-1.459-0.58-2.858-1.611-3.889s-2.429-1.611-3.888-1.611c-0.507 0.002-1.013 0.070-1.502 0.203-0.533 0.145-1.082-0.17-1.227-0.703s0.17-1.082 0.703-1.227c0.659-0.179 1.339-0.27 2.021-0.272z"></path><path d="M10.906 21.364c-1.605 0-3.186 0.386-4.61 1.126s-2.649 1.811-3.572 3.124c-0.318 0.452-0.941 0.561-1.393 0.243s-0.561-0.941-0.243-1.393c1.107-1.576 2.577-2.862 4.286-3.749s3.606-1.351 5.532-1.351 3.823 0.463 5.532 1.351c1.709 0.888 3.179 2.174 4.286 3.749 0.318 0.452 0.209 1.076-0.243 1.393s-1.076 0.209-1.393-0.243c-0.923-1.313-2.148-2.385-3.572-3.124s-3.005-1.126-4.61-1.126z"></path><path d="M25.704 22.493c-1.424-0.74-3.005-1.125-4.61-1.124-0.552 0-1-0.447-1.001-0.999s0.447-1 0.999-1.001c1.926-0.001 3.824 0.462 5.533 1.349s3.179 2.174 4.286 3.751c0.317 0.452 0.208 1.076-0.244 1.393s-1.076 0.208-1.393-0.244c-0.922-1.313-2.147-2.385-3.571-3.125z"></path></svg><span class="instructor_text__y_QTQ">1000+<!-- --> Students on Scaler Platform</span></div><div class="row flex-ac instructor_subdata__CcMPQ"><svg fill="currentColor" class="instructor_icon__mCHNE" version="1.1" xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 32 32"><path d="M16 5c-6.075 0-11 4.925-11 11s4.925 11 11 11c6.075 0 11-4.925 11-11s-4.925-11-11-11zM3 16c0-7.18 5.82-13 13-13s13 5.82 13 13c0 7.18-5.82 13-13 13s-13-5.82-13-13z"></path><path d="M16 8c0.552 0 1 0.448 1 1v6h6c0.552 0 1 0.448 1 1s-0.448 1-1 1h-7c-0.552 0-1-0.448-1-1v-7c0-0.552 0.448-1 1-1z"></path></svg><span class="instructor_text__y_QTQ">150+<!-- --> <!-- --> <!-- --> Hours of Lectures Delivered</span></div><div class="row flex-ac instructor_subdata__CcMPQ"><svg fill="currentColor" class="instructor_icon__mCHNE" version="1.1" xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 32 32"><path d="M14.83 2.868c0.342-0.239 0.75-0.368 1.168-0.368s0.826 0.128 1.168 0.368c0.338 0.236 0.596 0.569 0.741 0.955l2.759 6.936c0.003 0.007 0.007 0.013 0.013 0.017s0.013 0.007 0.020 0.007l7.402 0.476c0.411 0.036 0.802 0.194 1.124 0.452s0.559 0.607 0.683 1 0.127 0.815 0.011 1.211c-0.116 0.396-0.347 0.748-0.664 1.013l-5.655 4.714c-0.013 0.011-0.022 0.025-0.028 0.040s-0.006 0.032-0.002 0.047c0 0-0-0 0 0l1.821 7.163c0.107 0.395 0.094 0.812-0.037 1.2-0.133 0.391-0.38 0.734-0.71 0.983s-0.727 0.393-1.14 0.413c-0.413 0.020-0.822-0.084-1.175-0.3l-0.015-0.009-6.307-4.005c-0.004-0.003-0.009-0.004-0.014-0.004s-0.009 0.001-0.013 0.004c-0 0 0-0 0 0l-5.876 3.721c-0.389 0.235-0.839 0.347-1.292 0.323s-0.889-0.184-1.251-0.459c-0.361-0.275-0.632-0.652-0.777-1.082-0.143-0.426-0.157-0.885-0.038-1.319l1.684-6.629c0-0-0 0 0 0 0.004-0.016 0.003-0.033-0.002-0.049s-0.015-0.030-0.027-0.040l-5.653-4.714c-0.317-0.264-0.548-0.617-0.664-1.013s-0.112-0.817 0.011-1.211c0.124-0.394 0.361-0.742 0.683-1s0.713-0.416 1.124-0.452l0.023-0.002 7.38-0.476c0.007-0 0.014-0.003 0.020-0.007s0.010-0.010 0.013-0.017l0.008-0.020 2.746-6.913c0.145-0.386 0.403-0.719 0.741-0.956zM15.998 4.5c-0.008 0-0.015 0.002-0.022 0.007s-0.011 0.011-0.014 0.018l-0.010 0.026-2.747 6.915c-0.139 0.366-0.38 0.684-0.694 0.916-0.317 0.234-0.695 0.372-1.089 0.395l-7.353 0.475c-0.015 0.002-0.029 0.008-0.040 0.018-0.013 0.010-0.023 0.024-0.028 0.040s-0.005 0.033-0 0.049c0.005 0.016 0.014 0.030 0.027 0.041 0 0 0-0 0 0l5.647 4.709c0.001 0-0.001-0 0 0 0.302 0.251 0.529 0.583 0.652 0.955s0.138 0.774 0.043 1.156l-0.001 0.005-1.694 6.667c-0.014 0.051-0.013 0.106 0.004 0.156s0.049 0.095 0.091 0.127c0.042 0.032 0.094 0.051 0.147 0.054 0.051 0.003 0.102-0.009 0.146-0.034l5.854-3.707c0.327-0.205 0.705-0.312 1.090-0.309 0.384 0.003 0.759 0.114 1.081 0.322l6.285 3.991c0.010 0.005 0.020 0.008 0.031 0.007 0.012-0.001 0.024-0.005 0.033-0.012s0.017-0.017 0.021-0.029c0.004-0.011 0.004-0.024 0.001-0.035l-0.006-0.021-1.825-7.181c-0.095-0.382-0.080-0.782 0.043-1.156s0.348-0.703 0.65-0.954c0.001-0 0.001-0.001 0.002-0.001l5.649-4.71c0.013-0.011 0.022-0.025 0.027-0.041s0.005-0.033-0-0.049-0.015-0.030-0.028-0.040c-0.012-0.009-0.026-0.015-0.040-0.018l-7.351-0.473c-0.001-0-0.002-0-0.003-0-0.394-0.024-0.773-0.162-1.090-0.397-0.314-0.233-0.555-0.551-0.693-0.917l-2.76-6.941c-0.003-0.007-0.008-0.014-0.014-0.018s-0.014-0.007-0.022-0.007z"></path></svg><span class="instructor_text__y_QTQ">4.95 Star Instructor on Scaler</span></div><div class="row flex-ac instructor_subdata__CcMPQ"><svg fill="currentColor" stroke="" class="instructor_icon__mCHNE instructor_course_icon__M5UMm" version="1.1" xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 32 32"><path d="M26.259 23.289h-20.518c-1.193 0-2.16-0.967-2.16-2.16v0-14.588c0-1.193 0.967-2.16 2.16-2.16v0h20.518c1.193 0 2.16 0.967 2.16 2.16v0 14.588c0 1.193-0.967 2.16-2.16 2.16v0zM5.741 5.501c-0.574 0-1.040 0.466-1.040 1.040v0 14.588c0 0.574 0.466 1.040 1.040 1.040v0h20.518c0.574 0 1.040-0.466 1.040-1.040v0-14.588c0-0.574-0.466-1.040-1.040-1.040v0z"></path><path d="M19.764 27.619h-7.53c-0.309 0-0.56-0.251-0.56-0.56v0c0-0.309 0.251-0.56 0.56-0.56h7.53c0.309 0 0.56 0.251 0.56 0.56v0c0 0.309-0.251 0.56-0.56 0.56v0z"></path><path d="M14.023 9.322c0.116 0 0.223 0.035 0.312 0.096l-0.002-0.001 5.93 3.953c0.151 0.102 0.249 0.272 0.249 0.466s-0.098 0.364-0.247 0.465l-0.002 0.001-5.93 3.953c-0.087 0.059-0.195 0.094-0.31 0.094-0.309 0-0.56-0.25-0.56-0.559v-7.906c0-0.309 0.251-0.56 0.56-0.56v0zM18.943 13.835l-4.36-2.906v5.813z"></path></svg><span class="instructor_text__y_QTQ">1<!-- --> <!-- --> <!-- -->Course</span></div></div></div></div><div class="instructor_course_md_body__eEE_J instructor_height_limiter__SxsLM"><div class="markdown-body instructor_instructor_md__wI05l"></div></div></div><div class="course-detail_course_md_body__kPKGd course-detail_height_limiter__BH4FE"><div class="markdown-body"><h2 id="pre-requisites-for-free-data-structure-interview-questions-java-certification-course" level="2">Pre-requisites for free Data Structure interview questions Java certification course</h2> <ul> <li>Basic knowledge of programming concepts in Java</li> <li>Familiarity with data structures like arrays, linked lists, stacks, and queues</li> <li>Understanding of algorithm design techniques like divide and conquer, dynamic programming, and greedy algorithms</li> </ul> <h3 id="who-should-learn-this-free-dsa-problem-solving-for-interviews-using-java-course-" level="3">Who should learn this free DSA Problem Solving for Interviews using Java course?</h3> <p>This course is designed for 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Ltd. All Rights Reserved.</div></div><div class="row flex-ac m-t-xxs Footer_links__29v39"><a href="https://www.scaler.com/privacy/?utm_source=topics&utm_medium=footer">Privacy Policy</a><div class="Footer_link_separator__rUm4Q"></div><a href="https://www.scaler.com/terms/?utm_source=topics&utm_medium=footer">Terms of Use</a><div class="Footer_link_separator__rUm4Q"></div><a href="https://www.scaler.com/contact/?utm_source=topics&utm_medium=footer">Contact Us</a></div></div></div></footer></main></div></div><script id="__NEXT_DATA__" type="application/json" crossorigin="anonymous">{"props":{"pageProps":{"fallback":{"/course/dsa-beginners-java":[{"title":"Java DSA Course - Master the Fundamentals and Beyond","slug":"dsa-beginners-java","description":"Scaler Topics free Java DSA course is designed to help you prepare for data structure and algorithm (DSA) interview questions using Java. 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Anyone interested in learning DSA problem solving using Java can enroll and start learning.\n\n### How long does it take to complete this free Java DSA course?\n\nThe course duration of 13 hours, but this is a self-paced course and can be completed at your own pace. On average, it takes about a week to finish the course if you spend 1-2 hours per day.\n\n### What is DSA problem solving used for?\n\nDSA problem solving is used to solve complex problems by breaking them down into smaller, manageable parts. 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