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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 ...

In this video, DSA in Java – HashMap 02, we cover important concepts of HashMap in Java as part of the Java in One Shot series.

In this video, we explain the internal working of HashMap step by step, covering everything from hashing, buckets, collision ...

You put a value in a HashMap. You know it's there. But when you try to get it back… it's null. This isn't a Java bug. It's an equals() ...

How does HashMap work internally in Java? In this video, we explain the internal working of HashMap in a simple and ...

In this video, we compare List vs Set vs Map in Java and explain how they differ within the Java Collection Framework. You'll get a ...

HashMap in Java stores data in key–value pairs for fast access In this video, learn how HashMap works and when to use it.

Hello so every Java developer should know this simple method inside hashmap so the method is get or default and let's see what ...

Why Should You Learn DSA Patterns in 2025? https://www.youtube.com/watch?v=qH2VQY48mg4 DSA Patterns Playlist: https://www ...

Choosing the wrong Map in Java can silently kill performance or break your multithreaded code ⚠️ In this video, we deep-dive ...

A high-level look at how HashMap stores data internally. Buckets, collisions, and storage and why HashMap is used instead of ...

Yes, you can use a custom object as a key in HashMap — but only if you follow two critical rules ⚠️ In this video, you'll learn: ...

On a vacation right now so can't do a leetcode. I mean I probably can but decided to do hash table instead. Hopefully it's ...

This lecture explains the Map interface in Java with a detailed comparison between HashMap and TreeMap. You will learn how ...

In this video, we break down two commonly misunderstood data structures and explain when to use which, using clear logic and ...

In this video, we solve the Two Sum problem (LeetCode 1) and explain both the brute force and optimized HashMap approaches ...

Why Should You Learn DSA Patterns in 2025? https://www.youtube.com/watch?v=qH2VQY48mg4 DSA Patterns Playlist: ...