多线程打印之Synchronized

package com.zhang.reflection.面试.多线程打印;
public class Synchronized实现 {
    private int num;
    private static final Object Lock = new Object();
    private void print_ABC(int target) {
        synchronized (Lock) {
            //循环打印
            for (int i = 0; i < 10; i++) {
                while (num % 3 != target) {
                    try {
                        Lock.wait();
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                }
                num++;
                System.out.print(Thread.currentThread().getName());
                Lock.notifyAll();
            }
        }
    }
    public static void main(String[] args) {
        Synchronized实现 wait_notify_abc = new Synchronized实现();
        new Thread(() -> {
            wait_notify_abc.print_ABC(0);
        }, "A").start();
        new Thread(() -> {
            wait_notify_abc.print_ABC(1);
        }, "B").start();
        new Thread(() -> {
            wait_notify_abc.print_ABC(2);
        }, "C").start();
    }
}