Thread group ThreadGroup

Thread group to achieve:

package d1205;

public class GroupTest {

    public static void main(String[] args) {
        ThreadGroupTest groupTest = new ThreadGroupTest();
        ThreadGroup threadGroup = new ThreadGroup("线程组");
        //线程放入线程组
        Thread thread = new Thread(threadGroup,groupTest,"线程");

        threadGroup.setDaemon(true);
        threadGroup.setMaxPriority(3);
        System.out.println(thread.getName());
        System.out.println(thread.getThreadGroup().getName());
        System.out.println(thread.getThreadGroup().getParent().getParent());
    }
}

The role of thread groups:

• As can be seen from the code, to facilitate unified management thread
• Thread group can manage batch threads and thread groups, showing a tree structure
• Network map: