- Thread groups offer a convenient way to manage groups of threads as a unit.
- A thread is always a member of a thread group.
- A thread group not only includes threads but also other thread groups.
- A thread group in a Java program is represented by an object of the java.lang.ThreadGroup class.
- The getThreadGroup() method from the Thread class returns the reference to the ThreadGroup of a thread.
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public class ThreadGroupDemo {
public static void main(String[]
args) {
Thread t1 =
Thread.currentThread();
ThreadGroup tg1 =
t1.getThreadGroup();
System.out.println("Current thread's name:
" + t1.getName());
System.out.println("Current thread's group
name: " + tg1.getName());
Thread t2 = new
Thread("my thread group");
ThreadGroup tg2 =
t2.getThreadGroup();
System.out.println("New
thread's name: " +
t2.getName());
System.out.println("New
thread's group name:
" + tg2.getName());
}
}
|
Output:
Current thread's name: main
Current thread's group name: main
New thread's name: my thread group
New thread's group name: main
- The getParent() method from the ThreadGroup class returns the parent thread group of a thread group. The parent of the top-level thread group is null.
Thanks..!!
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