join.java

来自「java技术内幕源代码,配合书籍看有事半功倍的效果」· Java 代码 · 共 42 行

class CustomThread extends Thread 
{
    CustomThread(String name) 
    {
        super(name);
        start(); 
    }

    public void run() 
    {
        try {
            for(int loop_index = 0; loop_index < 4; loop_index++) {
                System.out.println((Thread.currentThread()).getName() 
                    + " thread here...");
                Thread.sleep(1000);
            }
        } catch (InterruptedException e) {}

        System.out.println((Thread.currentThread()).getName() + " ending.");
    }
}

class join
{
    public static void main(String args[]) 
    {
        CustomThread thread1 = new CustomThread("first"); 
        CustomThread thread2 = new CustomThread("second"); 
        CustomThread thread3 = new CustomThread("third"); 
        CustomThread thread4 = new CustomThread("fourth"); 

        try {
            thread1.join();
            thread2.join();
            thread3.join();
            thread3.join();
        } catch (InterruptedException e) {}
    }
}