Java.lang.Thread.interrupt() Method


Advertisements


Description

The java.lang.Thread.interrupt() method interrupts this thread. Interrupting a thread that is not alive need not have any effect.

Declaration

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

public void interrupt()

Parameters

  • NA

Return Value

This method does not return any value.

Exception

  • SecurityException -- if the current thread cannot modify this thread.

Example

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

package com.tutorialspoint;

import java.lang.*;

public class ThreadDemo implements Runnable {

   Thread t;

   ThreadDemo() {

   t = new Thread(this);
   System.out.println("Executing " + t.getName());
   // this will call run() fucntion
   t.start();
        
   // interrupt the threads
   if (!t.interrupted()) {
   t.interrupt();
   }
   // block until other threads finish
   try {  
   t.join();
   } catch(InterruptedException e) {}
   }

   public void run() {
   try {       
   while (true) {
   Thread.sleep(1000);
   }
   } catch (InterruptedException e) {
   System.out.print(t.getName() + " interrupted:");
   System.out.println(e.toString());
   }
   }

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

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

Executing Thread-0
Thread-0 interrupted:java.lang.InterruptedException: sleep interrupted
Executing Thread-1
Thread-1 interrupted:java.lang.InterruptedException: sleep interrupted

java_lang_thread.htm

Advertisements