多线程Thread

package com.day18.线程;

public class ThreadOne {

    public static void main(String[] args) {
        MyThread mt1=new MyThread("线程1");
        MyThread mt2=new MyThread("线程2");
        MyThread mt3=new MyThread("线程3");
        mt1.start();
        mt2.start();
        mt3.start();
        System.out.println("MyThread1 id="+mt1.getId());
        System.out.println("MyThread2 id="+mt2.getId());
        System.out.println("MyThread2 id="+mt3.getId());
        
    }

}
class MyThread extends Thread{
    private String name;
    public MyThread (String name) {
        this.name=name;
    }
    @Override
    public void run() {
        
        System.out.println("MyThread is"+ name);
    }
    
}