Coding⏱️ 2 min read📅 2026-05-31

How to Fix: How to catch an Exception from a thread

In Java, you can catch exceptions thrown by a thread in the main method using an uncaught exception handler or by catching the specific exception type.

Quick Answer: Use an uncaught exception handler or catch the specific exception type to handle exceptions thrown by a thread.

To catch an exception thrown from a thread in the main class, you can use the setUncaughtExceptionHandler method of the Thread class. This method allows you to specify a custom uncaught exception handler that will be called when an uncaught exception is thrown by the thread.

🚀 How it Works

  • [Cause]

Method 1: Using setUncaughtExceptionHandler

Step 1:

  1. Implement the UncaughtExceptionHandler interface and override its uncaughtException method.

Step 2:

  1. Set the uncaught exception handler on your thread using setUncaughtExceptionHandler.

✨ Example Code

public class Test extends Thread implements Runnable, UncaughtExceptionHandler {  public static void main(String[] args) throws InterruptedException {    Test t = new Test();    t.setUncaughtExceptionHandler(new ExceptionHandler());    t.start();    t.join();  }  @Override  public void uncaughtException(Thread t, Throwable e) {    System.out.println( 

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