threaddemo.java

一个小程序,提供参考

public class ThreadDemo extends Thread {
	public static void main(String [] args){
//		ThreadDemo td=new ThreadDemo();
//		td.start();
//		System.out.println("主线程");
//		try {
//			Thread.sleep(3000);
//		} catch (InterruptedException e) {
//		}
//		System.out.println("主线程第二行代码");
		ThreadDemo2 td2=new ThreadDemo2();
		Thread t=new Thread(td2);
		t.start();
		System.out.println("主线程");
		
	}
	public void run(){
		System.out.println("第一个多线程程序");
	}
}
class ThreadDemo2 implements Runnable{

	public void run() {
		System.out.println("第二个线程程序");
		
	}
	
}