Java/Java高级特性 - 多线程练习题.txt

package step1;

public class Task {
	public static void main(String[] args) throws Exception {
		/********* Begin *********/
		// 在这里创建线程， 开启线程

		Object a = new Object();
		Object b = new Object();
		Object c = new Object();
		// 在这里创建线程， 开启线程
		MyThread th1 = new MyThread("AA", a, c);
		MyThread th2 = new MyThread("BB", c, b);
		MyThread th3 = new MyThread("CC", b, a);

		th1.start();
		Thread.sleep(10);
		th2.start();
		Thread.sleep(10);
		th3.start();
		Thread.sleep(10);
		System.exit(0);

		/********* End *********/
	}
}

class MyThread extends Thread {
	/********* Begin *********/

	String threadName;
	Object a = null;
	Object b = null;

	public MyThread(String threadName, Object a, Object b) {
		super();
		this.threadName = threadName;
		this.a = a;
		this.b = b;
	}

	public synchronized void run() {

		int count = 5;
		while (count > 0) {
			synchronized (a) {
				synchronized (b) {
					System.out.println("Java Thread" + this.threadName);
					count--;
					b.notify();

				}
				try {
					a.wait();
				} catch (InterruptedException e) {
					// TODO 自动生成的 catch 块
					e.printStackTrace();
				}
			}
		}

	}
	/********* End *********/
}