Java Daemon Thread Examples

• You can make any java thread as daemon thread. Daemon threads acts like service providers for other threads running in the same process.
• Daemon threads will be terminated by the JVM when there are none of the other threads running, it includs main thread of execution as well.
• To specify that a thread is a daemon thread, call the setDaemon method with the argument true.
• To determine if a thread is a daemon thread, use the accessor method isDaemon.

Daemon Thread Sample Code

package com.myjava.threads;

public class DaemonThread extends Thread{
    
    public DaemonThread(){
        setDaemon(true);
    }
    public void run(){
        System.out.println("Is this thread Daemon? - "+isDaemon());
    }
    public static void main(String a[]){
        DaemonThread dt = new DaemonThread();
        // even you can set daemon constrain here also
        // it is like dt.setDeamon(true)
        dt.start();
    }
}

Example Output

Is this thread Daemon? - true

Other Thread Examples

• By Implementing Runnable Interface Example
• By Extending Thread Class Example
• Thread Join Example
• Thread Sleep Example
• Thread Yield Example