JAVA 多线程

public class Test4 {
    public static void main(String[] args) {
        MyThread t1 = new MyThread(1);
        MyThread t2 = new MyThread(2);
        t1.start();
        t2.start();
    }

    static class MyThread extends Thread {
        int num;

        public MyThread(int num) {
            this.num = num;
        }

        public void run() {
            for (int i = 0; i < 10; i++) {
                System.out.println(num);
            }
        }
    }
}