Thread.getUncaughtExceptionHandler() Method

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Description

The java.lang.Thread.getUncaughtExceptionHandler() method returns the handler invoked when this thread abruptly terminates due to an uncaught exception.

Declaration

Following is the declaration for java.lang.Thread.getUncaughtExceptionHandler() method

public Thread.UncaughtExceptionHandler getUncaughtExceptionHandler()

Parameters

  • NA

Return Value

This method does not return any value.

Exception

  • NA

Example

The following example shows the usage of java.lang.Thread.getUncaughtExceptionHandler() method.

package com.tutorialspoint;

import java.lang.*;

public class ThreadDemo implements Runnable {

   Thread t;

   public ThreadDemo() {

      t = new Thread(this);
      // this will call run() function
      t.start();
   }

   public void run() {

      // prints thread name
      System.out.println("Thread = " + t.getName());
      
      /* returns the handler invoked when this thread abruptly 
      terminates due to an uncaught exception. */
      Thread.UncaughtExceptionHandler handler = 
      t.getUncaughtExceptionHandler();
      System.out.println(handler);
   }

   public static void main(String[] args) {
      new ThreadDemo();
      new ThreadDemo();
   }
} 

Let us compile and run the above program, this will produce the following result:

Thread = Thread-0
java.lang.ThreadGroup[name=main,maxpri=10]
Thread = Thread-1
java.lang.ThreadGroup[name=main,maxpri=10]



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