How Does the Synchronized Block Work in Java? — IT Interview Guide

How Does the Synchronized Block Work in Java?

Want to make your Java code thread-safe? Discover how the synchronized block works in Java with examples, deep explanations, and performance insights. This guide demystifies synchronization and shows you the right way to manage concurrent access to shared resources.

Introduction to the Synchronized Block in Java

In multithreaded programming, ensuring thread safety is crucial when multiple threads access shared resources. Java provides built-in support for thread synchronization using the synchronized keyword. The synchronized block in Java is one of the most powerful tools to control access to critical sections of code.

Why Do We Need Synchronization?

Java allows multiple threads to run concurrently. If these threads access shared data without proper synchronization, it can lead to inconsistent or unexpected results, such as:

• Race conditions
• Data corruption
• Application crashes

The synchronized block helps prevent these issues by allowing only one thread at a time to execute a critical section of code.