What is the best free course for learning DSA in Java?

For learning Data Structures and Algorithms (DSA) in Java for free, there are several excellent resources available. Here are some top recommendations:

1. **[GeeksforGeeks Java DSA Course](https://www.geeksforgeeks.org/java/)**:

- GeeksforGeeks offers a comprehensive range of tutorials and articles on DSA concepts implemented in Java. Their material is structured and covers everything from basic to advanced topics.

2. **[Coursera - Data Structures and Algorithm Specialization](https://www.coursera.org/specializations/data-structures-algorithms)**:

- This is a paid course, but you can audit it for free. It’s offered by the University of California, San Diego, and includes content on DSA with Java implementations.

3. **[Udemy Free Courses](https://www.udemy.com/courses/search/?q=data%20structures%20and%20algorithms%20java&price=price-free)**:

- Udemy often has free courses available on DSA in Java. Search for “Data Structures and Algorithms Java” and filter by free courses.

4. **[YouTube - FreeCodeCamp](https://www.youtube.com/watch?v=RBSGKlAvoiM)**:

- FreeCodeCamp’s YouTube channel has a complete video course on Data Structures and Algorithms with Java. It’s a great visual resource.

5. **[Khan Academy - Algorithms](Khan Academy:

- Although not Java-specific, Khan Academy offers an excellent introduction to algorithms that can be adapted to Java.

6. **[MIT OpenCourseWare - Introduction to Algorithms](https://ocw.mit.edu/courses/electrical-engineering-and-computer-science/6-006-introduction-to-algorithms-fall-2011/)**:

- This course provides lecture notes, assignments, and exams. While it’s in pseudocode, it’s highly valuable for understanding algorithms and can be translated into Java.

Each of these resources offers a different style of learning, so you might want to explore a few to see which suits you best. Happy learning!