/*
* Copyright (c) 2014 Qunar.com. All Rights Reserved.
*/

/**
 * @author: wangh.wang  Date: 2015/7/22 Time: 21:15
 */

public class Thread1 {
    public static void main(String args[]) {
        final Bussiness business = new Bussiness();
        Thread a=new Thread(new Runnable(){
            @Override
            public void run(){
                business.SubThread();
            }
        });
        Thread b=new Thread((new Runnable() {
            @Override
            public void run() {
                business.MainThread();
            }
        }));
        a.start();
        b.start();
    }
}



class Bussiness {
    private static Object LOCK = new Object();
    volatile boolean bShouldSub = true;//這裡相當於定義了控制該誰執行的一個訊號燈

    public void MainThread() {
        for (int i = 0; i < 50; i++) {
            synchronized (LOCK) {//notify和wait的物件一定要和synchronized的物件保持一致
                for (int j = 0; j < 10; j++) {
                    System.out.println(Thread.currentThread().getName() + "+MainThread:i=" + i + ",j=" + j);
                }
                if (bShouldSub) {
                    bShouldSub = false;
                    LOCK.notify();
                    if(i<49){
                        try {
                            LOCK.wait();
                        }catch (InterruptedException e) {
                            // TODO Auto-generatedcatch block
                            e.printStackTrace();
                        }
                    }
                }
            }
        }
    }


    public void SubThread() {
        for (int i = 0; i < 50; i++) {
            synchronized (LOCK){
                for (int j = 0; j < 5; j++) {
                    System.out.println(Thread.currentThread().getName() + "+SubThread:i=" + i + ",j=" + j);
                }
                if (!bShouldSub) {
                    bShouldSub = true;
                    LOCK.notify();
                    if(i<49){
                        try {
                            LOCK.wait();
                        } catch (InterruptedException e) {
                            // TODO Auto-generatedcatch block
                            e.printStackTrace();
                        }
                    }

                }
            }
        }
    }

}