Question

I have entered this line of code for exercise 6-8 saying to Write an application that allows a user to enter any number of student quiz scores, as integers, until the user enters 99. If the score entered is less than 0 or more than 10, display Score must be between 10 and 0 and do not use the score. After all the scores have been entered, display the number of valid scores entered, the highest score, the lowest score, and the arithmetic average. I only have 96%. done with one result missing saying that the score must be between 10 and 0 even though i see that its there, what do i need to change if anything?

import java.util.*;

public class QuizScoreStatistics {

   public static void main(String[] args) {

       int quizScore = 0, validScores = 0;

       int highestScore = 0;

       int lowestScore = 10;

   double sum =0, average=0.0;

   Scanner scan = new Scanner(System.in);

   do {

       //prompt & read score from user

       System.out.print("Enter the quiz score : ");

       quizScore = scan.nextInt();

     

       if(quizScore == 99)

           break;

     

       if(quizScore<0 || quizScore>10) {

           System.out.println("Score must must be between 10 and 0: ");

       }

       else {

           //Calculate sum of quiz score

           sum += quizScore;

           //Increment valid score counter

           validScores++;

           //Determine highest score

           if(quizScore > highestScore)

               highestScore = quizScore;

           //Determine lowest score

           if(quizScore < lowestScore)

               lowestScore = quizScore;

       }

     

   }while(true);

   //calculating the average

   average = sum / validScores;  

   //Printing the results

   System.out.println("Number of valid scores: " + validScores);

   System.out.println("Highest Score: " + highestScore);

   System.out.println("Lowest Score: " + lowestScore);

   System.out.println("Arithmetic average: " + String.format("%.2f", average));

   }

}

Answer 1

The given program works perfectly and found no error.But in quiz score validation,the out put message is "Score must must be between 10 and 0: ". The word "must" is repeated and there is a colon also.Please eliminate the repeated word and the colon(:).The correct statement would be System.out.println("Score must be between 10 and 0"); .Please try this change,the problem will be solved.If find any difficulty,feel free to ask in comment section.Please do upvote the answer.Thank you.

Source code with small correction

import java.util.Scanner;
public class QuizScoreStatistics {
    public static void main(String[] args) {
        int quizScore = 0, validScores = 0;
        int highestScore = 0;
        int lowestScore = 10;
        double sum =0, average=0.0;
        Scanner scan = new Scanner(System.in);
        do {
            //prompt & read score from user
            System.out.print("Enter the quiz score : ");
            quizScore = scan.nextInt();
            if(quizScore == 99)
                break;
            if(quizScore<0 || quizScore>10) {
                System.out.println("Score must be between 10 and 0");
            }
            else {
                //Calculate sum of quiz score
                sum += quizScore;
                //Increment valid score counter
                validScores++;
                //Determine highest score
                if(quizScore > highestScore)
                    highestScore = quizScore;
                //Determine lowest score
                if(quizScore < lowestScore)
                    lowestScore = quizScore;
            }
        }while(true);
        //calculating the average
        average = sum / validScores;
        //Printing the results
        System.out.println("Number of valid scores: " + validScores);
        System.out.println("Highest Score: " + highestScore);
        System.out.println("Lowest Score: " + lowestScore);
        System.out.println("Arithmetic average: " + String.format("%.2f", average));
    }
}

Screen shot of the output