GameShow.java

import java.util.Random;
public class GameShow
{
   public static void main()
   {
       Random r= new Random();
       int stayResult=0;
       int switchResult=0;
       for(int x=0;x<100000;x++)
       {
       int[] doors={0,0,0};
       int car = r.nextInt(3);
       doors[car]=1;
       int choiceSwitch=0;
       int choiceStay=r.nextInt(3);
       int goatDoor=0;
       int randDoor=doors[goatDoor];
       //next sequence is to calculate a random door with a goat in it,except for the one you chose.
       while(goatDoor<3)
       {
          
       if(goatDoor!=choiceStay && doors[goatDoor]!=1)
       {
           break;
       }
       else
       {
           goatDoor++;
       }
      
   }
     choiceSwitch=(3-choiceStay-goatDoor);//this is to calculate the remaining door you can switch to
       if(doors[choiceStay]==1)
       {
           stayResult++;
       }
       if(doors[choiceSwitch]==1)
       {
           switchResult++;
       }
     
   
   }
   System.out.println("Probability of winning by staying: "+(stayResult/100)+"%");
   System.out.println("Probability of winning by switching: "+(switchResult/100)+"%");
}
}