DSA In Java | Hashmap 01 | Java in One Shot | Hashmap in Java
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In this video, we cover DSA in Java – HashMap (Part 01) as part of the Java in One Shot series. HashMap is one of the most important data structures in Java and is frequently asked in coding interviews, placements, and competitive programming. This lecture explains HashMap concepts from basics, including internal working, key–value pairs, hashing, collision handling, and common operations like put, get, remove, and containsKey with real-time examples. Whether you are a beginner in Java, preparing for DSA, or revising for interviews, this session will help you build a strong foundation in HashMap using Java.
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