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MyThread2.java
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35 lines (31 loc) · 926 Bytes
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package org.cp;
/**
* create by CP on 2019/7/24 0024.
*/
public class MyThread2 extends Thread{
private String whoAmI;
private int delay;
@Override
public void run() {
System.out.println(whoAmI +" 要睡 "+delay + "秒");
try {
Thread.sleep(delay*1000);
} catch (InterruptedException e) {
e.printStackTrace();
}
System.out.println("醒了！");
}
MyThread2(String whoAmI, int delay) {
this.whoAmI = whoAmI;
this.delay = delay;
}
}
class Test3{
public static void main(String[] args) throws InterruptedException {
MyThread2 t2 = new MyThread2("贝贝", (int)(Math.random()*100));
t2.start();
t2.join();//加了join方法后，一定会执行完t2的run方法，才会之后后续方法
//这个打印会在“醒了”后打印
System.out.println("main over");
}
}