Java多线程(一)-线程的创建与启动

方法一：继承Thread类

public class AnimalAthletes extends Thread {
    private long speed;
    public AnimalAthletes(long speed) {
        super();
        this.speed = speed;
    }
    public void run(){      //覆盖Thread类的run()方法
        System.out.println(currentThread().getName()+":起跑");
        for (int i = 0; i < 10; i++) {
            System.out.println(currentThread().getName()+" ："+i+"米  ");
            try {
                sleep(speed);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    System.out.println(currentThread().getName()+":到达终点");
    }
}

public class RaceDemo {
    public static void main(String[] args) {        
        AnimalAthletes tortoise = new AnimalAthletes(250);
        AnimalAthletes rabbit = new AnimalAthletes(100);
        AnimalAthletes snail = new AnimalAthletes(1000);
        tortoise.setName("乌龟");
        rabbit.setName("兔子");
        snail.setName("蜗牛");
        tortoise.start();
        rabbit.start();
        snail.start();
    }
}

方法二：实现Runnable接口，作为线程任务存在