thread interrupt

Thread thread4 = new Thread(){
public void run(){
try {
//synchronized(this){
//this.wait(10000);
System.out.println("start A4");
System.out.println("A4 interrupt  "+currentThread().isInterrupted());
    currentThread().sleep(100000);
long time= System.currentTimeMillis();
while(System.currentTimeMillis()-time<20000)
{

}
System.out.println("end  A4");
//}
} catch (Exception e) {
// TODO Auto-generated catch block
System.out.println("B4");
System.out.println("B4 interrupt  "+currentThread().isInterrupted());
}
}

};

thread4.start();
//主线程休眠 start
try {
Thread.sleep(5000l);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
System.out.println("B5");
}
////主线程休眠 end
System.out.println("interrupt...start");
thread4.interrupt();

System.out.println("interrupt...end");



如上代码，interrupt的作用就是设置打断状态true或者false；
如果调用过thread4.interrupt();    则再调用sleep  join  wait就会抛出InterruptedException异常，并且再次把interrupt状态设置为false；如果没有调用sleep  join  wait，那么我们可以发现在thread4.interrupt()之后currentThread().isInterrupted()为true。


第二种情况  当被block之后，我发现也会抛出InterruptedException，代码如下
Thread thread4 = new Thread(){
public void run(){
try {
//synchronized(this){
//this.wait(10000);
System.out.println("start A4");
System.out.println("A4 interrupt  "+currentThread().isInterrupted());
BlockingQueue<String> q= new ArrayBlockingQueue<String>(2);
q.put("d");
q.put("d");
q.put("d");
System.out.println("end  A4");
//}
} catch (Exception e) {
// TODO Auto-generated catch block
System.out.println("B4");
System.out.println("B4 interrupt  "+currentThread().isInterrupted());
}
}

};

thread4.start();
// try {
// Thread.sleep(5000l);
// } catch (InterruptedException e) {
// // TODO Auto-generated catch block
// System.out.println("B5");
// }
System.out.println("interrupt...start");
thread4.interrupt();

System.out.println("interrupt...end");