package juc;import java.util.concurrent.TimeUnit;/*** @author yanjun.liu* @date 2020/7/1--17:00*/
public class Test6 {public static void main(String[] args) throws InterruptedException {Thread lw= new Thread(()->{try {System.out.println("老王开始洗杯子");TimeUnit.SECONDS.sleep(1);System.out.println("老王开始烧水");TimeUnit.SECONDS.sleep(5);System.out.println("老王烧水完成");} catch (InterruptedException e) {e.printStackTrace();}},"老王");Thread lisi=  new Thread(()->{try {System.out.println("李四开始找茶叶");TimeUnit.SECONDS.sleep(3);System.out.println("李四都做完了。。。。等老王烧开水，泡茶");//lisi等待老王lw.join();} catch (InterruptedException e) {e.printStackTrace();}System.out.println("李四泡茶");});long start = System.currentTimeMillis();lw.start();lisi.start();//主线程等待，目的等待两个线程执行完成，打印时间lisi.join();lw.join();long end = System.currentTimeMillis();System.out.println(start-end);}}