package com company class Bitcoin extends Thread Override public void

package com.company;

class Bitcoin extends Thread{

    @Override
    public void run() {
        for (int i = 0; i < 10; i++) {
            System.out.print(4 + " ");
        }
    }
}

public class Main {

    public static void main(String[] args) {
       new Thread(new Runnable() {
           @Override
           public void run() {
               for (int i = 0; i < 10; i++) {
                   System.out.print(1 + " ");
               }
           }
       }).start();

       new Thread(new Thread(){
           @Override
           public void run() {
               for (int i = 0; i < 10; i++) {
                   System.out.print(2 + " ");
               }
           }
       }).start();

       new Thread(){
           @Override
           public void run() {
               for (int i = 0; i < 10; i++) {
                   System.out.print(3 + " ");
               }
           }
       }.start();

       new Bitcoin().start();

    }
}