Wanting to ask user to keep "inputting" at the command prompt until a condition is reached

[Karen Haq]

Hi, all

All I want to do is to ask the user to keep inputting a "1" for tossing the coin. The program should keep a running total of how many "heads" and "tails". When the the user enters "2" the program should output the running total for both heads and tails.

As it codes now, the user is prompted only one time because I wanted to test for bugs and for logic errors, keeping it simple.

Here is my test class:

public class CoinTest
{
  public static void main (String [] args)
  {
     Coin toss = new Coin();
     
     toss.determineflip();
        
     
   }
}

And here is my source class:

import java.util.Scanner;
import java.util.Random;

public class Coin
{
   Random tossingcoin = new Random ();
   
    int heads = 0;
    int tails = 1;
   
   int htotal = 0;
   int ttotal = 0;
   
   public void determineflip()
   {
     Scanner input = new Scanner (System.in);
     
     System.out.print ("Toss the coin? Enter 1 for Yes or 2 for No");
   
     //stores input
     int userdecision = input.nextInt();
     
     if (userdecision == 1)
     {  
         
         //randomly toss the coin
         int result = tossingcoin.nextInt(2);
    
         //result of coin toss
         switch (result)
         { 
             case heads:
             ++htotal;
             System.out.println("Heads");
             break;
         
             case tails:
             ++ttotal;
             System.out.println("Tails");
             break;
        }      
       
    }
 
     else 
    {
        System.out.printf ("Total heads count is: %d", htotal);
        System.out.printf ("Total tail count is %d", ttotal);
        input.close();
    }  
  
  }
}         

[Karen Haq]

NEVERMIND, I just figured out the answer to my question. Amazing how a cup of coffee will jolt the mind into powerdrive! :

[fred rosenberger]

I edited your post to have code tags. They preserve spacing and make code much easier to read. To use them yourself, you can click the button above where you type your post, the tags drop in, then paste your code between them.

Thanks, and welcome to the Ranch!