Java两个线程实现交替运行-以交替打印奇偶数为例

Posted 2021-01-05 dadapeng

本文旨在两个线程交替运行，不多哔哔直接看代码吧

public class Work2 {
    static final Object object = new Object();

    public static void main(String[] args) {

        Thread t1 = new Thread(new Runnable() {
            @Override
            public void run() {
                synchronized (object) {
                    for (int i = 1; i < 10; i += 2) {
                        System.out.println(Thread.currentThread().getName() + "    " + i);
                        object.notify();
                        try {
                            object.wait();
                        } catch (InterruptedException e) {
                            e.printStackTrace();
                        }
                    }
                }
            }
        }, "t1");
        Thread t2 = new Thread(new Runnable() {
            @Override
            public void run() {
                synchronized (object) {
                    for (int i = 2; i < 10; i += 2) {
                        System.out.println(Thread.currentThread().getName() + "     " + i);
                        object.notify();
                        try {
                            object.wait();
                        } catch (InterruptedException e) {
                            e.printStackTrace();
                        }
                    }
                }
            }
        }, "t2");
        t1.start();
        t2.start();
    }
}

该实现的原理也非常简单，定义一个对象，因为一个对象有且只有一个锁，所以让两个线程循环让此对象解锁->加锁，从而达到线程交替运行的目的;

个人觉得此方法还不够好，后续总结了再继续补充，还望看到的大佬们多指点指点！