休眠-蒲公英云

休眠

忘是亡心i 2023-06-04 07:56 71阅读 0赞

Java编程思想
并发
练习6:创建一个任务，它将睡眠1至10秒之间的随机数量的时间，然后显示它的睡眠时间并退出，创建并运行一定数量的这种任务。

import java.util.concurrent.TimeUnit;
public class Sleep implements Runnable{
    protected static int times = 0;
    public Sleep() {
    }
    public Sleep(int times) {
        this.times = times;
    }
    public void sleep(){
        try {
            System.out.print("我要睡一会儿觉");
            int sleepTime = (int)(Math.random()*10000);
            TimeUnit.MILLISECONDS.sleep(sleepTime);
            System.out.println(" 我睡了"+sleepTime/1000+"秒");
        }catch(InterruptedException e) {
            System.out.println("Interrupted");
        }
    }
    @Override
    public void run() {
        // TODO Auto-generated method stub
        for(int i=0;i<times;i++) {
            sleep();
        }
        System.out.println("我睡了"+times+"次");
    }
}
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
public class TestSleep {
    public static void main(String[] args) {
        ExecutorService exec = Executors.newCachedThreadPool();
        exec.execute(new Sleep(3));
        exec.shutdown();
    }
}