快捷導(dǎo)航

Java之Thread的join方法實(shí)例

更新時(shí)間：2014年10月24日 12:14:29 投稿：shichen2014

這篇文章主要介紹了Java之Thread的join方法,實(shí)例形式講述了join方法的應(yīng)用,需要的朋友可以參考下

本文實(shí)例講述了Java之Thread的join方法。分享給大家供大家參考。具體實(shí)現(xiàn)方法如下：

join
public final void join()
throws InterruptedException等待該線(xiàn)程終止。

拋出：
InterruptedException - 如果任何線(xiàn)程中斷了當(dāng)前線(xiàn)程。當(dāng)拋出該異常時(shí)，當(dāng)前線(xiàn)程的中斷狀態(tài) 被清除。

下面的例子通俗的講，就是A調(diào)用join方法后，只有等A所在的線(xiàn)程不再運(yùn)行，才會(huì)將進(jìn)程分配出去

復(fù)制代碼代碼如下:

public class joinThread {
    public static void main(String [] args) throws Exception{
        ThreadTest5 t = new ThreadTest5();
        Thread A = new Thread(t);
        Thread B = new Thread(t);
        A.start();
        A.join();         //此處A調(diào)用 Thread的join方法，主函數(shù)將線(xiàn)程分配給A，當(dāng)A運(yùn)行完畢后，才會(huì)將線(xiàn)程釋放出去。給其他的對(duì)象。
        B.start();
        for (int i = 1;i < 20;i++)
        {
            System.out.println("樹(shù)上掉蘋(píng)果"+ i);
        }
        System.out.println("蘋(píng)果沒(méi)了");
    }
}

class ThreadTest5 implements Runnable
{
    public void run()
    {
        for (int i = 1;i < 10;i++)
        {
            System.out.println(Thread.currentThread().getName()+"吃蘋(píng)果"+(i));
        }
    }
}

運(yùn)行結(jié)果為:

Thread-0吃蘋(píng)果1
Thread-0吃蘋(píng)果2
Thread-0吃蘋(píng)果3
Thread-0吃蘋(píng)果4
Thread-0吃蘋(píng)果5
Thread-0吃蘋(píng)果6
Thread-0吃蘋(píng)果7
Thread-0吃蘋(píng)果8
Thread-0吃蘋(píng)果9
樹(shù)上掉蘋(píng)果1
樹(shù)上掉蘋(píng)果2
樹(shù)上掉蘋(píng)果3
樹(shù)上掉蘋(píng)果4
樹(shù)上掉蘋(píng)果5
樹(shù)上掉蘋(píng)果6
Thread-1吃蘋(píng)果1
樹(shù)上掉蘋(píng)果7
Thread-1吃蘋(píng)果2
樹(shù)上掉蘋(píng)果8
Thread-1吃蘋(píng)果3
樹(shù)上掉蘋(píng)果9
Thread-1吃蘋(píng)果4
樹(shù)上掉蘋(píng)果10
Thread-1吃蘋(píng)果5
樹(shù)上掉蘋(píng)果11
Thread-1吃蘋(píng)果6
Thread-1吃蘋(píng)果7
Thread-1吃蘋(píng)果8
Thread-1吃蘋(píng)果9
樹(shù)上掉蘋(píng)果12
樹(shù)上掉蘋(píng)果13
樹(shù)上掉蘋(píng)果14
樹(shù)上掉蘋(píng)果15
樹(shù)上掉蘋(píng)果16
樹(shù)上掉蘋(píng)果17
樹(shù)上掉蘋(píng)果18
樹(shù)上掉蘋(píng)果19
蘋(píng)果沒(méi)了