20.3 : String vs StringBuffer vs StringBuilder | Java Strings [Abdul Bari] Java Course

Published: 17 December 2025
on channel: Hacktrickz

One of the most asked Java interview questions. In this lecture, you will learn the difference between String, StringBuffer, and StringBuilder in Java, focusing on immutability, mutability, thread safety, and performance.

Topics Covered:

What is String in Java
String immutability
StringBuffer vs StringBuilder
Thread safety comparison
Performance differences

Must-watch lecture for Java developers and interview candidates.

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