Hey, Can you please give an solution of why this doesn't work correctly?

```
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
/**
*
*
*/
public class Main
{
static Thread hare = new Thread(new ThreadRunner("hare",90,100));
static Thread tortoise = new Thread(new ThreadRunner("tortoise",0,10));
public static void main(String[] args)
{
hare.start();
tortoise.start();
}
public static void finished(Thread winner)
{
if(winner.equals(hare))
{
System.out.println("The race is over, hare wins");
tortoise.interrupt();
}
if(winner.equals(tortoise))
{
System.out.println("The race is over, tortoise wins");
hare.interrupt();
}
}
}
class ThreadRunner implements Runnable {
private String name;
private int chance;
private int speed;
private int distance;
public ThreadRunner(String name, int chance, int speed)
{
this.name = name;
this.chance = chance;
this.speed = speed;
}
public void run() {
int randomNo;
while(distance!=1000)
{
randomNo = ((int) (Math.random() * 99)) + 1;
if(chance<=randomNo)
{
distance+=speed;
System.out.println(name+" : "+distance+" m");
}
try{
Thread.sleep(100);
}catch(InterruptedException e){
System.out.println(name+": You won fare and square!");
}
}
System.out.println(name + " :I finished");
Main.finished(Thread.currentThread());
}
}
```

My output is :

tortoise : 10 m

tortoise : 20 m

tortoise : 30 m

tortoise : 40 m

hare : 100 m

tortoise : 50 m

tortoise : 60 m

tortoise : 70 m

tortoise : 80 m

tortoise : 90 m

tortoise : 100 m

tortoise : 110 m

tortoise : 120 m

tortoise : 130 m

tortoise : 140 m

tortoise : 150 m

tortoise : 160 m

tortoise : 170 m

tortoise : 180 m

tortoise : 190 m

tortoise : 200 m

tortoise : 210 m

tortoise : 220 m

tortoise : 230 m

tortoise : 240 m

tortoise : 250 m

tortoise : 260 m

hare : 200 m

tortoise : 270 m

tortoise : 280 m

tortoise : 290 m

tortoise : 300 m

tortoise : 310 m

tortoise : 320 m

tortoise : 330 m

tortoise : 340 m

tortoise : 350 m

tortoise : 360 m

tortoise : 370 m

tortoise : 380 m

tortoise : 390 m

tortoise : 400 m

tortoise : 410 m

tortoise : 420 m

tortoise : 430 m

hare : 300 m

tortoise : 440 m

tortoise : 450 m

tortoise : 460 m

tortoise : 470 m

tortoise : 480 m

tortoise : 490 m

tortoise : 500 m

tortoise : 510 m

tortoise : 520 m

tortoise : 530 m

tortoise : 540 m

tortoise : 550 m

tortoise : 560 m

tortoise : 570 m

tortoise : 580 m

tortoise : 590 m

hare : 400 m

tortoise : 600 m

tortoise : 610 m

tortoise : 620 m

tortoise : 630 m

tortoise : 640 m

hare : 500 m

tortoise : 650 m

tortoise : 660 m

tortoise : 670 m

tortoise : 680 m

tortoise : 690 m

tortoise : 700 m

hare : 600 m

tortoise : 710 m

tortoise : 720 m

tortoise : 730 m

tortoise : 740 m

tortoise : 750 m

tortoise : 760 m

tortoise : 770 m

tortoise : 780 m

hare : 700 m

tortoise : 790 m

tortoise : 800 m

tortoise : 810 m

hare : 800 m

tortoise : 820 m

tortoise : 830 m

tortoise : 840 m

tortoise : 850 m

tortoise : 860 m

tortoise : 870 m

tortoise : 880 m

tortoise : 890 m

tortoise : 900 m

tortoise : 910 m

tortoise : 920 m

tortoise : 930 m

tortoise : 940 m

tortoise : 950 m

tortoise : 960 m

tortoise : 970 m

tortoise : 980 m

tortoise : 990 m

tortoise : 1000 m

tortoise :I finished

The race is over, tortoise wins

hare: You won fare and square!

hare : 900 m

hare : 1000 m

hare :I finished

The race is over, hare wins

As you see, it allows both threads to finish the loop. How Can I not allow this? (without using something like System.exit(0) when I catch interrupt). Thanks :)

*Edited
by Javam*: n/a