Map Interface & HashMap in Java | Key-Value Concept Explained | Java Collections
In this video, we will understand the Map interface in Java and its most commonly used implementation – HashMap.
📺 YouTube Channel: Ruchi Codes
💻 Complete Java Source Code used in my tutorials
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https://github.com/ruchicodesofficial...
You will learn:
✔ What is Map interface
✔ Why Map is not a class
✔ How HashMap implements Map
✔ Key-Value concept in Java
✔ Important HashMap methods with examples
✔ Basic working of HashMap (internals covered in next video)
👉 Next Video: HashMap Internals (Hashing, Collision, Bucket, Load Factor)
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