多线程实现方式

1、继承Thread类，重写run方法。

public class MyThread extends Thread {

    public void run() {

        System.out.println("this is my thread");

    }

}

调用：

MyThread myThread = new MyThread();

myThread.start();

2、实现Runnable接口，实现run方法。

public class MyThread implements Runnable{

    public void run() {

        System.out.println("this is my Thread");

    }

}

调用：

MyThread myThread = new MyThread();

Thread t = new Thread(myThread);

t.start();