实现Runnable接口创建线程

//创建线程：实现Runnable接口
public class MyThread implements Runnable {
    public void run(){
        for (int i = 1; i<=100; i++){
            System.out.println(Thread.currentThread().getName()+":"+i);
        }
    }

}

测试类

//测试线程
public class TestThread2 {
    public static void main(String[] args) {
        //创建线程对象
        Runnable runnable = new MyThread();
        Thread thread = new Thread(runnable,"Mythread1");
        Thread thread2 = new Thread(runnable,"Mythread2");
        //启动线程
        thread.start();
        thread2.start();
    }
}