华为多线程面试题解法二(sync_wait_notify)

										华为多线程面试题解法二(sync_wait_notify)

package src.main.java.com.qqjx.thread;

/*
 * @Auther  wangpeng
 * @Date 2021/2/2
 */

public class T06_00_sync_wait_notify {

    public static void main(String[] args) {
        final Object o = new Object();

        char[] aI = "1234567".toCharArray();
        char[] aC = "ABCDEFG".toCharArray();

        new Thread(()->{
            synchronized (o) {
                for(char c : aI) {
                    System.out.print(c);
                    try {
                        o.notify(); //叫醒其他线程 不会出让锁
                        o.wait(); // 线程阻塞 让出锁
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                }

                o.notify(); //必须，否则无法停止程序
            }

        }, "t1").start();

        new Thread(()->{
            synchronized (o) {
                for(char c : aC) {
                    System.out.print(c);
                    try {
                        o.notify();
                        o.wait();
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                }

                o.notify();
            }
        }, "t2").start();
    }

}

1
A
2
B
3
C
4
D
5
E
6
F
7
G