用java多线程编程,输出100个"hello world"

[dennis0705]

一个java面试题

[紫炎圣骑]

public class ThreadTest
{
    public static void main(String[] args)
    {
        System.out.println("Hello-world begin");
        ExecutorService exec = Executors.newScheduledThreadPool(5);
        for (int i = 0; i < 100; i++)
        {
            exec.execute(new TTask("" + i));
            try
            {
                TimeUnit.MILLISECONDS.sleep(30);
            }
            catch (InterruptedException e)
            {
                e.printStackTrace();
            }
        }
        exec.shutdown();

        System.out.println("Hello-world end");

    }
}

class TTask implements Runnable
{
    private String tName = "";

    public TTask(String name)
    {
        tName = name;
    }

    public void run()
    {
        System.out.println(Thread.currentThread().getId() + ":" + tName + ":hello world");
    }
}

[caolei_kunming]

[Quote=引用 5 楼 bao110908 的回复:]
public class MultiThreadTest {

    public static void main(String[] args) {       
        for(int i = 0; i < 100; i++) {
            new PrintHelloWorld().start();
        }
    }
   
    private static class PrintHelloWorld extends Thread {
        public void run() {
            System.out.println("hello world");
        }       
    }
}

不知道这种面试题有什么意义所在？可以称之为极其垃圾的面试题！
[/Quote]就是这个了，不过PrintHelloWorld声明时候可以不写"static".

[hui94781674]

public class HelloWorld implements Runnable{

	@Override
	public void run() {
		for (int i = 0; i < 100; i++) {
			System.out.println("Hello World!");
		}
	}
	
	public static void main(String[] args) {
		Thread thread = new Thread(new HelloWorld());
		thread.start();
	}

}

[SuperBoo]

5楼 正解
4楼 不对

我感觉面试题的意思是 让你启动100个线程

[苍蝇①号]

for(int i=0;i<100;i++){
System.out.println("hello world");
}

[closewbq]

这。。。。。。

import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.TimeUnit;
public class Test {
	public static void main(String[] args) throws InterruptedException {
		System.out.println("Hello-world begin");
		ExecutorService exec = Executors.newCachedThreadPool();
		exec.execute(new Runnable() {
			public void run() {
				for (int i = 0; i < 100; i++)
					System.out.println("hello world");

			}
		});
		TimeUnit.SECONDS.sleep(5);
		exec.shutdown();
		System.out.println("Hello-world end");
	}
}

哈哈

[zhuzeitou]

输出100个……怎么输出？同时还是间隔？什么都没讲清楚啊

[Java_Op]

1L你那是循环.
LZ是要多线程.
class Test implements Runnable {
private static int count;
//.....................................
public Test() { count = 100; }
public Test(int count) {this.count = count; }
//...........................................
public void run()
{
while(count-- > 0)
{
System.out.print("Hello,World!" + " ");
Thread.yield();
}
}
}

public class Ex1 {
public static void main(String[] args)
{
Test t = new Test();
t.run();
}
}

[火龙果被占用了]

public class MultiThreadTest {

public static void main(String[] args) {
for(int i = 0; i < 100; i++) {
new PrintHelloWorld().start();
}
}

private static class PrintHelloWorld extends Thread {
public void run() {
System.out.println("hello world");
}
}
}

不知道这种面试题有什么意义所在？可以称之为极其垃圾的面试题！

[彤袅]

观望高手中……

[tanwan]

public class ThreadTest 
{
   public static void main(String[] args)
   {
	   Threads ts = new Threads();
	   ts.start();
   }
}
class Threads extends Thread 
{
	public void run()
	{
		for(int i=0;i<100;i++)
		{
			System.out.println("hello world");
			try 
			{
				Thread.sleep(1000);
			} catch (InterruptedException e) 
			{
				e.printStackTrace();
			}
		}
	}
}

- -!!!

[xlxyeyu]

面试题是垃圾，或者说楼主没说清楚~~