Java DSA Course - Master the Fundamentals and Beyond
Free DSA Java Course with Certification 2026
About this Free Java DSA Course - Master the Fundamentals and Beyond
Learn Java DSA in this free Java DSA course, covering arrays to dynamic programming. Earn the Scaler Certificate of Excellence while building skills for DSA interview prep. Enroll free.
What you’ll learn
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Various data structures and algorithms commonly asked in DSA job interviews.
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The skills that you would learn after taking up this free dsa course with certificate are:
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Arrays and linked lists
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Linked list operations - singly, doubly, circular
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Stacks and queues
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Trees and graphs
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Recursion and backtracking
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Sorting and binary search
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Dynamic programming and greedy algorithms
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Earn the Scaler Certificate of Excellence by completing all lessons and challenges, validating your skills in data structures and algorithms in Java during software engineering interviews.
Course Content

Certificate for Free Java DSA Course - Master the Fundamentals and Beyond
Instructor of this course

About Course
This free Java DSA course with certificate is prepared for developers who already understand core Java fundamentals such as loops, conditionals, functions, and basic object-oriented programming. So, if you have a good idea on these topics, then you will surely understand the concepts explained in this program. The course focuses on applying these concepts to data structures and algorithms in Java used in technical interviews.
After completing the course, you will receive the Scaler Certificate of Excellence. But if you still need to learn Java fundamentals and are in some dilemma towards it, then you can begin with the free Java beginners course on Scaler Topics before starting this program.
The course includes 9 hrs 9 minutes of content which is distributed in 12 modules and 101 lessons. This might seem long, but trust us when we say that with dedicated hours of learning every day, it’ll be over in a week or two at most. Rest depends on your schedule, of course! The lessons will basically cover all the essential topics asked in technical interviews. You will study arrays, linked lists, stacks, queues, trees, graphs, sorting algorithms, searching techniques, recursion, dynamic programming, and greedy algorithms.
These lessons are meant to build a strong understanding of data structures and algorithms in Java and how they apply to coding problems. You will also practice solving DSA interview questions while working through key concepts such as arrays, linked lists, trees, graphs, and dynamic programming, which will help you understand both implementation and problem-solving patterns. This free Java DSA course with certificate can also help you prepare for technical interview preparation and software development roles, as along the course, your algorithmic thinking will be developed as well.
The course is taught by Subhesh Kumar who is a Software Engineer at Scaler and holds a 4.95 instructor rating.
The lessons are self-paced, and you are provided with lifetime access of course content. Hence, you can study at your own pace and then continue your preparation with the DSA Problem Solving for Interviews course on Scaler Topics.
Pre-requisites for free Data Structure interview questions Java certification course
- Basic knowledge of programming concepts in Java
- Familiarity with data structures like arrays, linked lists, stacks, and queues
- Understanding of algorithm design techniques like divide and conquer, dynamic programming, and greedy algorithms
Who should learn this free DSA Problem Solving for Interviews using Java course?
This course is designed for beginners who want to prepare for DSA interview questions using Java. It is also suitable for experienced programmers who want to brush up their skills and learn new problem-solving techniques.