package p2017_05_04_Thread;
/**
* Created by wq on 2017/5/4.
*/
public class MultiThread {
public static void main(String[] args) throws InterruptedException {
new Thread(new Thread1()).start();
Thread.sleep(10);
new Thread(new Thread2()).start();
}
private static class Thread1 implements Runnable{
@Override
public void run() {
//thread1和thread2用同一对象监视器，我们这里不能用this，由于这里的Thread1和下面的Thread2的this不是同一对象
//所以用MultiThread.class这个字节码对象，当虚拟机引用这个变量时，指向的都是同一个对象
synchronized (MultiThread.class){
System.out.println("enter Thread1.......");
System.out.println("Thread1 is waiting");
try {
/**
* 释放锁有两种方式，第一种是程序自然离开sychoronized代码块，第二种方法就是在sychoronized内部调用监视器
* 的wait方法，这里使用wait方法释放锁
*/
MultiThread.class.wait();
} catch (InterruptedException e) {
e.printStackTrace();
}
System.out.println("thread is going on...");
System.out.println("thread1 is being over...");
}
}
}
private static class Thread2 implements Runnable{
@Override
public void run() {
synchronized (MultiThread.class){
System.out.println("enter thread2.........");
System.out.println("thread2 notify other thread can release wait status..");
MultiThread.class.notify();
System.out.println("thread2 is sleeping ten millisecond...");
try {
Thread.sleep(10);
} catch (InterruptedException e) {
e.printStackTrace();
}
System.out.println("thead2 is going on");
System.out.println("thead2 is being over");
}
}
}
}
运行结果如下图所示：
