线程组ThreadGroup

线程组实现：

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());
    }
}

线程组的作用：

• 从代码中可看出，方便线程统一管理
• 线程组可批量管理线程和线程组，呈树形结构
• 网图：