多线程之interrupted与isInterrupted

interrupt()

暂停线程方法interrupt(); 但是调用interrupt()并不是马上就停止，只是标记

判断线程是否中断 this.interrupted(); this.isInterrupted()；

interrupted()和isInterrupted()

this.interrupted():测试当前线程是否中断,当前指运行this.interrupted()的线程.内部实现是调用的当前线程的isInterrupted()

this.isInterrupted():测试线程是否中断.内部是调用该方法的对象所表示的那个线程的isInterrupted()

public class MyThread extends Thread {

    public static void main(String[] args) throws InterruptedException {
        MyThread thread=new MyThread();
        thread.start();
        Thread.sleep(1000);
        thread.interrupt();
        System.out.println(thread.isInterrupted());
    }
    
    @Override
    public void run() {
        int i=0;
        System.out.println(i++);
    }
}
结果：
0
false
由此结果都是false可知Thread调用interrupt()并不是马上就使线程暂停

注意，如果线程已中断 连续两次调用Thread.interrupted();
第一个是ture, 但是第二个是 false, 因为第一次调用后已经清除其中断的状态。
但是this.isInterrupted()不会清除

	 public static void main(String[] args) {
        Thread.currentThread().interrupt();
        System.out.println(Thread.interrupted());
        System.out.println(Thread.interrupted());
    }
结果
true
false
public class MyThread_1 extends Thread{

    public static void main(String[] args) {
        MyThread_1 thread_1=new MyThread_1();
        thread_1.start();
        thread_1.interrupt();
        System.out.println(thread_1.isInterrupted());
        System.out.println(thread_1.isInterrupted());
    }

    @Override
    public void run() {
        System.out.println("run....");
    }
}
结果
true
true
run....