Thread: Help with accumulating sum values in do while loop

Hi,

I can't seem to figure a way to add the totalUserscore and totalCompScore. What I mean is my program is a little game that adds the correct # of answer by user and computerAI. But every time the score will end up either 1 - 1 or 0 - 0, 1 - 0 , 0 - 1, and will not add to i.e. 2- 1 , 3- 2.

Please help. I'm a beginner in Java, and it's my second project.

import java.text.DecimalFormat;
import java.util.Scanner;
import java.util.Random;
 
public class prime {
	private static final String Y = null;
	private static final String N = null;
 
	public static void main(String[] args) {
 
		String Quit = null;
		char finalUseranswer;
		char Q;
 
		Scanner keyboard = new Scanner(System.in);
 
		//Pretext
		System.out.println("ｬｬｬｬｬｬｬｬｬｬｬｬｬｬｬｬｬｬｬｬｬｬｬｬｬｬｬｬｬ");		
		System.out.println("Prime Number Guessing Game");
		System.out.println("Y = Yes, N = No, Q = Quit");
		System.out.println("ｬｬｬｬｬｬｬｬｬｬｬｬｬｬｬｬｬｬｬｬｬｬｬｬｬｬｬｬｬ");	
 
		  //Starts the loop
		  do{
		  //Declares randomization of prime numbers
			 Random randomNumber = new Random();
			 int num = randomNumber.nextInt(1000);
			 int i; 								//value to terminate loop
			 char compAnswer = 0;
 
			 										//Prime calculation
			 for (i=2; i < num ;i++ ){
			 int n = num%i;
			 if (n==0){
		     compAnswer = 'N'; 						//compAnswer decides whether or not value is prime. Yes = Y, No = N.
			 break;
			 }
			 }
			 if(i == num){
			 compAnswer = 'Y';
			 }	  									//ends
 
		//Randomization of numbers to decide if it's odd or even
			 Random aiRandom = new Random();		//aiRandom generates from 0-51
			 int aiComp = aiRandom.nextInt(50)+1;
			 char trueCompAnswer;					//trueCompAnswer is answer by computer's AI. 
			  if (aiComp % 2 == 0)
			  {
			    trueCompAnswer = 'Y';				//If number is even, value is Y in unicode
			  }
			  else
			  {
			  trueCompAnswer = 'N';					//if number is odd, value is N in unicode
			  }
 
			  System.out.println();					//displays user's needed input
			  System.out.println("Is " +
								  num  +
						   		 " a prime number? ");
			  System.out.print("User answers...");	
 
 
			  String userAnswer1 = keyboard.nextLine(); 				//userAnswer1 is user's default input
			  String userAnswer2 = userAnswer1.toUpperCase();			//userAnswer 2 is user's default input converted to all Uppercase
			  finalUseranswer = userAnswer2.toUpperCase().charAt(0); 	//finalUseranswer is location of first letter of user's default input's converted answer. 
			  int Userscore = 0, compScore = 0;							//initialization the scores
 
		  {  		   
			  //Begins if statements. Compares user's answer with computerAi(computer player) answer with the real prime answer. Then executes whichever logical statements are true.
			  //If User is correct, then user gets one point( accumlator) and if Computer is correct, then computer gets one point. If both answers wrong, both gets 0. 
 
			  if (trueCompAnswer == compAnswer && finalUseranswer == compAnswer &&( userAnswer2.equalsIgnoreCase("YES")|| userAnswer2.equalsIgnoreCase("NO"))|| finalUseranswer == 'Y' ||finalUseranswer =='N' ){
				  System.out.println("Computer answers..." +trueCompAnswer);
				  System.out.println("Correct answer: " + compAnswer);
				  ++Userscore;
				  ++compScore;				  
			  		}
			  else if (trueCompAnswer != compAnswer && finalUseranswer == compAnswer &&( userAnswer2.equalsIgnoreCase("YES")|| userAnswer2.equalsIgnoreCase("NO"))|| finalUseranswer == 'Y' ||finalUseranswer =='N') {
				  System.out.println("Computer answers..." +trueCompAnswer);
				  System.out.println("Correct answer: " + compAnswer);
				  ++Userscore;	
				    }	
 
			  else if (trueCompAnswer == compAnswer && finalUseranswer != compAnswer &&( userAnswer2.equalsIgnoreCase("YES")|| userAnswer2.equalsIgnoreCase("NO"))|| finalUseranswer == 'Y' ||finalUseranswer =='N') {
				  System.out.println("Computer answers..." +trueCompAnswer);
				  System.out.println("Correct answer: " + compAnswer);
				   ++compScore;
					 }	
 
			  else if (trueCompAnswer != compAnswer && finalUseranswer != compAnswer &&( userAnswer2.equalsIgnoreCase("YES")|| userAnswer2.equalsIgnoreCase("NO"))|| finalUseranswer == 'Y' ||finalUseranswer =='N') {
				  System.out.println("Computer answers..." +trueCompAnswer);
				  System.out.println("Correct answer: " + compAnswer);
			  		}	
			  //End if statements
 
			  else if(finalUseranswer =='Q') {
			  }
 
			  else{//Validation
				  System.out.println("Please enter Yes, No, or Quit!");
				  System.out.println();		 
			  }
 
			  //Calculation of total points
			  int totalcompScore = 0, totaluserScore = 0;
 
			  System.out.println("Computer Score: " + (totalcompScore= totalcompScore+compScore));
			  System.out.println("User Score: " + (totaluserScore= totaluserScore+Userscore));
 
		  }} while (finalUseranswer !='Q');	//Sentinel value of 'Q' which indicates termination of program
 
		  	System.out.println("Thank you for playing!");
 
	}}