java 多线程 Thread 锁ReentrantLock;Condition等待与通知

import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;

/**
 * @ClassName LockReentrantLockExample
 * @projectName: object1
 * @author: Zhangmingda
 * @description： XXX
 * date: 2021/4/24.
 */
public class LockReentrantLockExample {
    public static void main(String[] args) {
        Lock lock = new ReentrantLock();
        Runnable r = () -> {
            String tName = Thread.currentThread().getName();
            System.out.println("子线程运行");
            lock.lock();
            System.out.println(tName + "准备睡觉了");
            try {
                Thread.sleep(1000);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
            System.out.println(tName + "睡醒了");
            lock.unlock();
        };

        Thread thread = new Thread(r,"child1");
        Thread thread1 = new Thread(r,"child2");
        Thread thread2 = new Thread(r,"child3");
        thread.start();
        thread1.start();
        thread2.start();
    }
}