package java_Threads;

public class ThreadDemo2 {

public static void main(String args[]) throws InterruptedException {

// main函数可能早于子线程结束；

// main线程和子线程都结束了，整个程序才算终止；

new TestThread2().start();

// while(true)

// {

// System.out.println("main thread is running");

// Thread.sleep(1000);

// }

}

}

class TestThread2 extends Thread {

public void run() {

while (true) {

System.out.println("TestThread2" + " is running");

try {

Thread.sleep(1000);

} catch (InterruptedException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

}

}

}