Discussion of Activity 8.1 - Running the hare and the tortoise race

Sample solution

Code for class Hare:

public class Hare extends Thread
{
   public void run()
   {
      for (int i = 1; i <= 50000000; i++)
      {
         if (i % 1000000 == 0)
         {
            System.out.print("H ");
         }
      }
   }
}

Code for class Tortoise:

public class Tortoise extends Thread
{
   public void run()
   {
      for (int i = 1; i <= 50000000; i++)
      {
         if (i % 1000000 == 0)
         {
            System.out.print("T ");
         }
      }
   }
}

Code for running the race ThreadRace1:

public class ThreadRace1
{
   public static void main(String[] args)
   {
      Hare h = new Hare();
      Tortoise t = new Tortoise();
      System.out.print("They're off! ");
      h.start();
      t.start();
   }
}

Note

Scroll the output window to the right to see the winner.

You may need to run your code several times to see a change in the winner. If you don't ever see a change in the winner, you might
try adding a 0 to the number of iterations and to the remainder expression.