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How HashMap works internally in Java | Popular Java Interview Question | Explained in Hindi

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How HashMap works internally in Java | Popular Java Interview Question | Explained in Hindi

Explore the inner workings of Java HashMap using animation with our detailed tutorial in Hindi! In this video, we deep dive into the internal mechanisms of HashMap in Java, breaking down the key concepts and processes step by step. Topics Covered: Introduction to HashMap: Understand the basic concepts of HashMap and its importance in Java ...

3K viewsDec 31, 2023

How Does HashMap Work Internally in Java? Explained Simply!

How Does HashMap Work Internally in Java? Explained Simply!

Ekta Agrawal on Instagram: "How does HashMap work internally? 🤯👇 Most asked Java Interview Question !! Stop memorizing theory! Visualize it. 🧠 Here is the step-by-step logic: 1️⃣ The Structure: It’s just an Array of "Buckets". 2️⃣ Hashing: hashCode() converts your Key into an Index (0-15). 3️⃣ The Collision: If two keys get the same index, they form a Linked List chain. 🔗 4️⃣ The Optimization: In Java 8+, if the chain gets too long (>8), it transforms into a Red-Black Tree for faster speed!

Ekta Agrawal on Instagram: "How does HashMap work internally? 🤯👇 Most asked Java

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