Java ThreadGroup.setDaemon(boolean daemon)
Syntax
ThreadGroup.setDaemon(boolean daemon) has the following syntax.
public final void setDaemon(boolean daemon)
Example
In the following code shows how to use ThreadGroup.setDaemon(boolean daemon) method.
public class Main {
public static void main(String[] args) {
new ThreadGroupDemo();
}//from w ww. j av a 2 s .c om
}
class ThreadGroupDemo implements Runnable {
public ThreadGroupDemo() {
ThreadGroup pGroup = new ThreadGroup("Parent ThreadGroup");
pGroup.setDaemon(true);
ThreadGroup cGroup = new ThreadGroup(pGroup, "Child ThreadGroup");
cGroup.setDaemon(true);
Thread t1 = new Thread(pGroup, this);
System.out.println("Starting " + t1.getName());
t1.start();
Thread t2 = new Thread(cGroup, this);
System.out.println("Starting " + t2.getName());
t2.start();
System.out.println("Is " + pGroup.getName() + " a daemon ThreadGroup? "
+ pGroup.isDaemon());
System.out.println("Is " + cGroup.getName() + " a daemon ThreadGroup? "
+ cGroup.isDaemon());
}
public void run() {
System.out.println(Thread.currentThread().getName()
+ " finished executing.");
}
}