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Thread: I'm wanting this code to jump out of the loop at case 2 of the switch statement

  1. #1
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    Default I'm wanting this code to jump out of the loop at case 2 of the switch statement

    For some reason it won't jump out of it.
      System.out.println("\nWould you like to try to guess the number again?\n" +
                                   "1.Yes\n" +
                                   "2.No\n" +
                                   "3.Exit the System");
                guessAgainPrompt=keyboard.nextInt();
     
                switch (guessAgainPrompt)
                {
                   case 1:
                   guessNumber();
                   guessCount=+1;
                   if (numberGuess==bonusNumber)
                   {
                      guessCorrect();
                      condition=false;
                   }
                   else
                   {
                      guessFail();
                   }
                   break;
     
                   case 2:
                   System.out.println("Thanks for playing the Game!");
                   condition=false;
                   break;
     
                   case 3:
                   System.out.println("Goodbye");
                   condition=false;
                   break;
                }
     
     
           }while (guessCount<=5 || condition==true);


  2. #2
    Super Moderator Norm's Avatar
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    Default Re: I'm wanting this code to jump out of the loop at case 2 of the switch statement

    Can you explain what statement in the code is executing and not doing what you want it to do?

    What variables control the looping? Do they have the correct values for the loop to end?
    If you don't understand my answer, don't ignore it, ask a question.

  3. #3
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    Default Re: I'm wanting this code to jump out of the loop at case 2 of the switch statement

    Quote Originally Posted by Norm View Post
    Can you explain what statement in the code is executing and not doing what you want it to do?

    What variables control the looping? Do they have the correct values for the loop to end?
    Here's an update of the code:
    switch (guessAgainPrompt)
                {
                   case 1:
                   guessNumber();
                   guessCount=+1;
                   if (numberGuess==bonusNumber)
                   {
                      condition=false;
                      guessCorrect();
     
                   }
                   else
                   {
                      guessFail();
     
                   }
                   break;
     
                   case 2:
                   System.out.println("Thanks for playing the Game!");
                   condition=false;
                   break;
     
                   case 3:
                   System.out.println("Goodbye");
                   condition=false;
                   break;
                }
     
     
           }while (guessCount<=5 || condition==true);
          }

    The loop will not end here, therefore, I am prompted with the prompt that is at the beginning of the loop.
    if (numberGuess==bonusNumber)
                   {
                      condition=false;
                      guessCorrect();
     
                   }

    The variables that are controlling the loop is the 'condition variable, I have it initialised at the top as static boolean condition=true;
    The loop is set to continue while the condition is true, but because the above condition is false, shouldn't it jump out?

  4. #4
    Super Moderator Norm's Avatar
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    Default Re: I'm wanting this code to jump out of the loop at case 2 of the switch statement

    variables that are controlling the loop is the 'condition variable
    Did you post the code you are working with? The while in the posted code:
     }while (guessCount<=5 || condition==true);
    has two variables the control the loop. If EITHER condition is true, the code will loop.
    What is the value of guessCount?

    Perhaps you want BOTH conditions to be true to continue the loop.
    If so, use an AND vs OR
    If you don't understand my answer, don't ignore it, ask a question.

  5. #5
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    Default Re: I'm wanting this code to jump out of the loop at case 2 of the switch statement

    I want either of the variables to be true, but for now I just want to get the 'condition' one working. I can't understand why it won't jump out when the condition is false. Here is the full code:
     
     
    import java.util.Scanner;
     
    public class GuessNumber
     
    {
     
      static String Name;
      static  int guesses=0,bonusNumber = (int) (Math.random()*10) ,numberGuess, Score=0, guessAgainPrompt, guessCount;
      static  boolean condition=true;
     
      static  Scanner keyboard = new Scanner(System.in);
     
       public static void guessCorrect()
       {
          Score =+10;
          System.out.println("CONGRATULATIONS & WELL DONE!!!!\nYou have won the game.");
     
       }
     
       public static void guessFail()
       {
          System.out.println("Sorry, wrong number,");
     
       }
     
       public static void guessNumber()
       {
          System.out.println("Please guess a number between 1-10");
          numberGuess=keyboard.nextInt();
     
       }
     
     
       public static void main(String[] args)
       {                                                                                        //prompt for name to personalise
          System.out.println("What is your name?");
          Name=keyboard.nextLine();
     
          guessNumber();            //prompt for user to guess the bonus number
     
     
          if (numberGuess==bonusNumber)
          {
             guessCorrect();
             condition=false;
     
          }
          else
          {
             guessFail();
     
           do
           {
     
                System.out.println("\nWould you like to try to guess the number again?\n" +
                                   "1.Yes\n" +
                                   "2.No\n" +
                                   "3.Exit the System");
                guessAgainPrompt=keyboard.nextInt();
     
                switch (guessAgainPrompt)
                {
                   case 1:
                   guessNumber();
                   if (numberGuess==bonusNumber)
                   {
     
                      guessCorrect();
                      condition=false;
                   }
                   else
                   {
                      guessFail();
     
                   }
                   break;
     
                   case 2:
                   System.out.println("Thanks for playing the Game!");
                   condition=false;
                   break;
     
                   case 3:
                   System.out.println("Goodbye");
                   condition=false;
                   break;
                }
     
     
           }while (guessCount<=5 || condition==true);
          }
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
     
       }//main
    }//class

  6. #6
    Super Moderator Norm's Avatar
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    Default Re: I'm wanting this code to jump out of the loop at case 2 of the switch statement

    Did you read the end of my last post?

    OR means if EITHER are true
    AND means BOTH must be true
    If you don't understand my answer, don't ignore it, ask a question.

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    Default Re: I'm wanting this code to jump out of the loop at case 2 of the switch statement

    Quote Originally Posted by Norm View Post
    Did you read the end of my last post?

    OR means if EITHER are true
    AND means BOTH must be true
    Yeah, but I want OR because i just need either one to be true, || is the correct operator for OR right?

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    Super Moderator Norm's Avatar
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    Default Re: I'm wanting this code to jump out of the loop at case 2 of the switch statement

    i just need either one to be true
    If either are true then the loop continues looping. Is that what you want?
    If you don't understand my answer, don't ignore it, ask a question.

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    Default Re: I'm wanting this code to jump out of the loop at case 2 of the switch statement

    Its already set to true, if either are false, I want it to stop looping.

  10. #10
    Super Moderator Norm's Avatar
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    Default Re: I'm wanting this code to jump out of the loop at case 2 of the switch statement

    if either are false, I want it to stop looping.
    Usimg OR says if either are true, keep looping

    Using AND says if both are true, keep looping. In other words if any are false stop looping.

    It seems like it would have been a very simple test to change the OR to AND and see what happened.
    If you don't understand my answer, don't ignore it, ask a question.

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