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T28.java
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51 lines (40 loc) · 1.25 KB
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package com.basic;
import java.io.IOException;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.TimeUnit;
/**
* @program JavaBooks
* @description: 第五种，WorkStealingPool
* @author: mf
* @create: 2020/01/01 15:05
*/
public class T28 {
public static void main(String[] args) throws IOException {
// 默认核数
ExecutorService service = Executors.newWorkStealingPool();
service.execute(new R(1000));
service.execute(new R(2000));
service.execute(new R(2000));
service.execute(new R(2000));
service.execute(new R(2000));
// 由于产生的是精灵线程(守护线程、后台线程)，主线程如果不阻塞的话，看不到输出
System.in.read();
service.shutdown();
}
private static class R implements Runnable {
int time;
public R(int time) {
this.time = time;
}
@Override
public void run() {
try {
TimeUnit.MILLISECONDS.sleep(time);
} catch (InterruptedException e) {
e.printStackTrace();
}
System.out.println(Thread.currentThread().getName());
}
}
}