test score calculator while loop

[Tianna Taylor-Albin]

I am trying to make a calculator that asks a user how many test scores will be entered, prompt the user to enter a score for the amount of scores to be entered, add the scores, and average the scores. If the user enters and invalid score, one that is above 100, the program should display an error message and not add the entry to the total number of scores or the added scores. I've gotten it to do everything I need until an invalid score is entered. Can anyone help me figure out how to tell it that if the score is over 100, do not add it to the score count or total. Here is what I have so far:

import java.util.Scanner;
public class testScoreApp {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        // TODO code application logic here
      


       {
           // display operational messages
           System.out.println("Please enter test scores that range from 0 to 100.");
           System.out.println("To end the program enter 999.");
           System.out.println();  // print a blank line

           // initialize variables and create a Scanner object
           
           Scanner sc = new Scanner(System.in);
           String choice = "y";

           // get a series of test scores from the user
           while (!choice.equalsIgnoreCase("n"))
           {
               int scoreTotal = 0;
               int scoreCount = 0;
               int testScore = 0;
               System.out.println("Enter the number of test score to be entered: ");
               int numberOfTestScores = sc.nextInt();

               for (int i = 1; i <= numberOfTestScores; i++)
               {
                    // get the input from the user
                    System.out.print("Enter score " + i + ": ");
                    testScore = sc.nextInt();

                    // accumulate score count and score total
                    if (testScore <= 100)
                    {
                         scoreCount = scoreCount + 1;
                         scoreTotal = scoreTotal + testScore;
                    
                     
                    }
                    else if (testScore > 100) 
                 System.out.println("Invalid entry, not counted");
                    


                }
                double averageScore = scoreTotal / scoreCount;
                String message = "\n" +
                     "Score count:   " + scoreCount + "\n"
                   + "Score total:   " + scoreTotal + "\n"
                   + "Average score: " + averageScore + "\n";
                System.out.println(message);
                System.out.println();
                System.out.println("Enter more test scores? (y/n)");
                choice= sc.next();
          }



    // display the score count, score total, and average score



    }
}
    }

Thanks for any help figuring this out.

[Tony Docherty]

Can anyone help me figure out how to tell it that if the score is over 100, do not add it to the score count or total. Here is what I have so far:

Your code already handles that situation, what it doesn't do is get the user to enter a valid score instead of the invalid one. The problem is you increment the loop counter whether the input is valid or not, you may want to move the increment so it only happens if the input is valid.
You may also want to look at what happens is someone enters a negative number or a number of scores that is less than 1.

[Alex Armenteros]

I've only seen two problems

a) What sir Docherty has said.


b) remember always that int / int will return an int, so the fraction part of the number is lost even if you "cast" it to double. To solve this make the average operation int /double, double/int or double/double