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  1. 10-28-2009, 04:37 AM #1
    SwEeTAcTioN's Avatar
    SwEeTAcTioN
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    Exclamation Help on Do-While loop

    So everything works in this number guessing game i wrote except for the do-while loop. When it asks you if you want to play again when you type n it works and displays "Thank You For Playing" but when you type in y it doesnt do anything. Can anyone tell me whats wrong and how to fix it?

    Sorry the codes a little long

    All help is appriecated very much:)

    Java Code: 
    import java.io.*;
import javax.swing.*;
import java.util.Random;

public class GameProject{


  
  public static void main(String[] args)throws IOException{
  

  	BufferedReader input= new BufferedReader(new InputStreamReader(System.in));
  	Random rand= new Random();
    int random=rand.nextInt(50)+1;
    boolean playAgain=false;
    char response;
    int guess1,guess2,guess3,guess4,guess5,guess6;
    
    System.out.println("Guess a Number Between 1-50");
    System.out.println("You will have 6 guesses");
    System.out.println("I will tell you if you need to go higher or lower");
    System.out.println("Good Luck");
    System.out.println("Guess #1");
    guess1=Integer.parseInt(input.readLine());
    if(guess1==random)
    {
    	System.out.println("You won");
    	System.out.println("Would you like to play again?");
    	response=input.readLine().charAt(0);
    	if(response=='Y'||response=='y')
    		playAgain=true;
    	if (response=='N'||response=='n')
    		System.out.println("Thank You For Playing!");
    } 
    
     
    if(guess1<random)
    	System.out.println("Go higher");
    if(guess1>random)
    	System.out.println("Go lower");
    if(guess1<random||guess1>random)
   	System.out.println("Please Guess Again");
   	 if(guess1<random||guess1>random)
   	System.out.println("Guess #2");
    guess2=Integer.parseInt(input.readLine());
    if(guess2==random)
    	{
    	System.out.println("You won");
    	System.out.println("Would you like to play again?");
    	response=input.readLine().charAt(0);
    	if(response=='Y'||response=='y')
    		playAgain=true;
    	if (response=='N'||response=='n')
    		System.out.println("Thank You For Playing!");
        } 
    

    if(guess2<random)
    	System.out.println("Go higher");
    if(guess2>random)
    	System.out.println("Go lower");
   if(guess2<random||guess2>random)
   	System.out.println("Please Guess Again");
   	if(guess2<random||guess2>random)
   	System.out.println("Guess #3");
    guess3=Integer.parseInt(input.readLine());
    if(guess3==random)
    	{
    	System.out.println("You won");
    	System.out.println("Would you like to play again?");
    	response=input.readLine().charAt(0);
    	if(response=='Y'||response=='y')
    		playAgain=true;
    	if (response=='N'||response=='n')
    		System.out.println("Thank You For Playing!");
        } 
    	
   
    if(guess3<random)
    	System.out.println("Go higher");
    if(guess3>random)
    	System.out.println("Go lower");
   if(guess3<random||guess3>random)
   	System.out.println("Please Guess Again");
   	if(guess3<random||guess3>random)
   	System.out.println("Guess #4");
    guess4=Integer.parseInt(input.readLine());
    if(guess4==random)
    	{
    	System.out.println("You won");
    	System.out.println("Would you like to play again?");
    	response=input.readLine().charAt(0);
    	if(response=='Y'||response=='y')
    		playAgain=true;
    	if (response=='N'||response=='n')
    		System.out.println("Thank You For Playing!");
        }  
    	
    
    if(guess4<random)
    	System.out.println("Go higher");
    if(guess4>random)
    	System.out.println("Go lower");
    if(guess4<random||guess4>random)
   	System.out.println("Please Guess Again");
   	 if(guess4<random||guess4>random)
   	System.out.println("Guess 5");
    guess5=Integer.parseInt(input.readLine());
    if(guess5==random)
    	{
    	System.out.println("You won");
    	System.out.println("Would you like to play again?");
    	response=input.readLine().charAt(0);
    	if(response=='Y'||response=='y')
    		playAgain=true;
    	if (response=='N'||response=='n')
    		System.out.println("Thank You For Playing!");
        } 
    
    if(guess5<random)
    	System.out.println("Go higher");
    if(guess5>random)
    	System.out.println("Go lower");
    if(guess5<random||guess5>random)
   	System.out.println("Please Guess Again");
   	 if(guess5<random||guess5>random)
   	System.out.println("Guess 6");
    guess6=Integer.parseInt(input.readLine());
    if(guess6==random)
    	{
    	System.out.println("You won");
    	System.out.println("Would you like to play again?");
    	response=input.readLine().charAt(0);
    	if(response=='Y'||response=='y')
    		playAgain=true;
    	if (response=='N'||response=='n')
    		System.out.println("Thank You For Playing!");
        } 
    else
    {
   	System.out.println("You lose");
   	System.out.println("The number was: "+random);
   	if(playAgain==true)
   	 do{
   	
   	 	System.out.println("Good Luck");
    System.out.println("Guess #1");
    guess1=Integer.parseInt(input.readLine());
    if(guess1==random)
    	System.out.println("You won");
    if(guess1<random)
    	System.out.println("Go higher");
    if(guess1>random)
    	System.out.println("Go lower");
    if(guess1<random||guess1>random)
   	System.out.println("Please Guess Again");
   	 if(guess1<random||guess1>random)
   	System.out.println("Guess #2");
    guess2=Integer.parseInt(input.readLine());
    if(guess2==random)
    	System.out.println("You won");

    if(guess2<random)
    	System.out.println("Go higher");
    if(guess2>random)
    	System.out.println("Go lower");
   if(guess2<random||guess2>random)
   	System.out.println("Please Guess Again");
   	if(guess2<random||guess2>random)
   	System.out.println("Guess #3");
    guess3=Integer.parseInt(input.readLine());
    if(guess3==random)
    	System.out.println("You won");
   
    if(guess3<random)
    	System.out.println("Go higher");
    if(guess3>random)
    	System.out.println("Go lower");
   if(guess3<random||guess3>random)
   	System.out.println("Please Guess Again");
   	if(guess3<random||guess3>random)
   	System.out.println("Guess #4");
    guess4=Integer.parseInt(input.readLine());
    if(guess4==random)
    	System.out.println("You won");
    
    if(guess4<random)
    	System.out.println("Go higher");
    if(guess4>random)
    	System.out.println("Go lower");
    if(guess4<random||guess4>random)
   	System.out.println("Please Guess Again");
   	 if(guess4<random||guess4>random)
   	System.out.println("Guess 5");
    guess5=Integer.parseInt(input.readLine());
    if(guess5==random)
    	System.out.println("You won");
    if(guess5<random)
    	System.out.println("Go higher");
    if(guess5>random)
    	System.out.println("Go lower");
    if(guess5<random||guess5>random)
   	System.out.println("Please Guess Again");
   	 if(guess5<random||guess5>random)
   	System.out.println("Guess 6");
    guess6=Integer.parseInt(input.readLine());
    if(guess6==random)
    	System.out.println("You won");
    else
    {
   	System.out.println("You lose");
   	System.out.println("The number was: "+random);
    }
   	 }
    while(playAgain==true);
    
         
   	 }
    }
  }
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  2. 10-28-2009, 05:07 AM #2
    curious
    curious is offline Member
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    Default

    Here's the correct version of the code. You were not use flag (playAgain) correctly and you were not using the concept of loop correctly. if you copying the same code two times then you are not using loop.

    Hope this helps.

    Java Code: 
    import java.io.*;
import javax.swing.*;
import java.util.Random;

public class GameProject{


  
  public static void main(String[] args)throws IOException{
  

    BufferedReader input= new BufferedReader(new InputStreamReader(System.in));
    Random rand= new Random();
    int random=rand.nextInt(50)+1;
    boolean playAgain=true;
    char response;
    int guess1,guess2,guess3,guess4,guess5,guess6;
    while (playAgain)
    {
    System.out.println("Guess a Number Between 1-50");
    System.out.println("You will have 6 guesses");
    System.out.println("I will tell you if you need to go higher or lower");
    System.out.println("Good Luck");
    System.out.println("Guess #1");
    guess1=Integer.parseInt(input.readLine());
    if(guess1==random)
    {
        System.out.println("You won");
        System.out.println("Would you like to play again?");
        response=input.readLine().charAt(0);
        if(response=='Y'||response=='y')
            playAgain=true;
        if (response=='N'||response=='n'){
            playAgain=false;
            System.out.println("Thank You For Playing!");
        }
    } 
    
     
    if(guess1<random)
        System.out.println("Go higher");
    if(guess1>random)
        System.out.println("Go lower");
    if(guess1<random||guess1>random)
    System.out.println("Please Guess Again");
     if(guess1<random||guess1>random)
    System.out.println("Guess #2");
    guess2=Integer.parseInt(input.readLine());
    if(guess2==random)
        {
        System.out.println("You won");
        System.out.println("Would you like to play again?");
        response=input.readLine().charAt(0);
        if(response=='Y'||response=='y')
            playAgain=true;
        if (response=='N'||response=='n'){
            playAgain=false;
            System.out.println("Thank You For Playing!");
        }
        } 
    

    if(guess2<random)
        System.out.println("Go higher");
    if(guess2>random)
        System.out.println("Go lower");
   if(guess2<random||guess2>random)
    System.out.println("Please Guess Again");
    if(guess2<random||guess2>random)
    System.out.println("Guess #3");
    guess3=Integer.parseInt(input.readLine());
    if(guess3==random)
        {
        System.out.println("You won");
        System.out.println("Would you like to play again?");
        response=input.readLine().charAt(0);
        if(response=='Y'||response=='y')
            playAgain=true;
        if (response=='N'||response=='n'){
            playAgain=false;
            System.out.println("Thank You For Playing!");
        }
        } 
        
   
    if(guess3<random)
        System.out.println("Go higher");
    if(guess3>random)
        System.out.println("Go lower");
   if(guess3<random||guess3>random)
    System.out.println("Please Guess Again");
    if(guess3<random||guess3>random)
    System.out.println("Guess #4");
    guess4=Integer.parseInt(input.readLine());
    if(guess4==random)
        {
        System.out.println("You won");
        System.out.println("Would you like to play again?");
        response=input.readLine().charAt(0);
        if(response=='Y'||response=='y')
            playAgain=true;
        if (response=='N'||response=='n')
        {
            playAgain=false;
            System.out.println("Thank You For Playing!");
        }
        }  
        
    
    if(guess4<random)
        System.out.println("Go higher");
    if(guess4>random)
        System.out.println("Go lower");
    if(guess4<random||guess4>random)
    System.out.println("Please Guess Again");
     if(guess4<random||guess4>random)
    System.out.println("Guess 5");
    guess5=Integer.parseInt(input.readLine());
    if(guess5==random)
        {
        System.out.println("You won");
        System.out.println("Would you like to play again?");
        response=input.readLine().charAt(0);
        if(response=='Y'||response=='y')
            playAgain=true;
        if (response=='N'||response=='n'){
            playAgain=false;
            System.out.println("Thank You For Playing!");
        }
        } 
    
    if(guess5<random)
        System.out.println("Go higher");
    if(guess5>random)
        System.out.println("Go lower");
    if(guess5<random||guess5>random)
    System.out.println("Please Guess Again");
     if(guess5<random||guess5>random)
    System.out.println("Guess 6");
    guess6=Integer.parseInt(input.readLine());
    if(guess6==random)
        {
        System.out.println("You won");
        System.out.println("Would you like to play again?");
        response=input.readLine().charAt(0);
        if(response=='Y'||response=='y')
            playAgain=true;
        if (response=='N'||response=='n')
        {playAgain=false;
            System.out.println("Thank You For Playing!");
            
        }
        } 
    
    
    else
    {
    System.out.println("You lose");
    System.out.println("The number was: "+random);
    System.out.println("Would you like to play again?");
        response=input.readLine().charAt(0);
        if(response=='Y'||response=='y')
            playAgain=true;
        if (response=='N'||response=='n')
        {playAgain=false;
            System.out.println("Thank You For Playing!");
        }
       
    }
}
}
  }
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  3. 10-29-2009, 03:19 AM #3
    SwEeTAcTioN's Avatar
    SwEeTAcTioN
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    Its still not replaying the game if you type in y and now n doesnt do anything
    Are you suggesting that Cocunuts migrate?!! -Monty Python
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  4. 10-29-2009, 03:35 AM #4
    Fubarable's Avatar
    Fubarable
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    You may get more help if you format your code better. As displayed, it's difficult to see what is happening. Much luck!
    How to use Code Tags
    How to Ask Smart Questions
    The Short, Self Contained, Correct (Compilable), Example or SSCCE
    So, You Need to Write a Program but Don't Know How to Start
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  5. 10-29-2009, 03:47 AM #5
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    What do you mean?
    Are you suggesting that Cocunuts migrate?!! -Monty Python
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  6. 10-29-2009, 03:56 AM #6
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    Fubarable
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    Quote Originally Posted by SwEeTAcTioN View Post
    What do you mean?
    You've written a program with many if / else blocks that use non-standard indentation. Since we more easily understand that which is familiar to us, if you posted the code with standard indentation, more folks would more easily understand your code at a glance, and be more willing to read it and help you that's all.

    You can find out more about Java standard coding conventions here: Coding Conventions Doc
    How to use Code Tags
    How to Ask Smart Questions
    The Short, Self Contained, Correct (Compilable), Example or SSCCE
    So, You Need to Write a Program but Don't Know How to Start
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  7. 10-30-2009, 04:09 AM #7
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    Thanks i read it and it makes sense and i also fixed my code
    Are you suggesting that Cocunuts migrate?!! -Monty Python
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