Java如何检查线程组是否已被销毁？
可以使用ThreadGroup.isDestroyed()方法检查线程组及其子组是否已被销毁。
package org.nhooo.example.lang;
public class CheckGroupDestroy {
public static void main(String[] args) {
ThreadGroup grandParent = new ThreadGroup("GrandParent");
ThreadGroup uncle = new ThreadGroup(grandParent, "Uncle");
ThreadGroup parent = new ThreadGroup(grandParent, "Parent");
ThreadGroup son = new ThreadGroup(parent, "Son");
ThreadGroup daughter = new ThreadGroup(parent, "Daughter");
ThreadGroup neighbour = new ThreadGroup("Neighbour");
ThreadGroup[] groupArray = {
grandParent, uncle, parent, son, daughter, neighbour
};
// 销毁“父”组及其所有子组
parent.destroy();
for (ThreadGroup tg : groupArray) {
if (tg.isDestroyed()) {
System.out.println(tg.getName() + " is destroyed");
} else {
System.out.println(tg.getName() + " is not destroyed");
}
}
}
}结果是：
GrandParent is not destroyed Uncle is not destroyed Parent is destroyed Son is destroyed Daughter is destroyed Neighbour is not destroyed
热门推荐
10 财运虎年祝福语简短语
11 单亲爸爸春节祝福语简短
12 狗狗上厕所训练
13 植物种植祝福语简短
14 翻译考试祝福语朋友简短
15 个人周年庆简短祝福语
16 狗狗怎么训练
17 分别祝福语简短搞笑英文
18 生日广州男生祝福语简短