Question

This program has to be made in java also will but uploaded on zybooks

Write a program in Java to read a list of exam grades given as int's in the range of 0 to 100. Your program will display the total number of grades and the number of grades in each letter-grade category as follows:

A

93 <= grade <= 100

A-

90 <= grade < 93

B+

87 <= grade < 90

B

83 <= grade < 87

B-

80 <= grade < 83

C+

77 <= grade < 80

C

73 <= grade < 77

C-

70 <= grade < 73

D

60 <= grade < 70

F

0 <= grade < 60

Use a negative number as a sentinel value to indicate the end of the input. (The negative value is used only to end the loop, do not use it in your calculations.)

Each time you prompt the user to enter a grade you will print:

Enter a grade:

For example, if the input is:

98 95 87 86 83 92 85 78 74 72 81 71 69 63 50 43 -1

The output would be:

Total number of grades = 16 Number of A's = 2 Number of A-'s = 1 Number of B+'s = 1 Number of B's = 3 Number of B-'s = 1 Number of C+'s = 1 Number of C's = 1 Number of C-'s = 2 Number of D's = 2 Number of F's = 2

Please note that your class should be named Grades.

Answer 1

import java.util.Scanner;

public class GradeCount {
   public static void main(String[] args) {
       // counters for each grade
       int a = 0, an = 0, bp = 0, b = 0, bn = 0, cp = 0, c = 0, cn = 0, d = 0, f = 0;
       int grade, total = 0;
       Scanner sc = new Scanner(System.in);
       while (true) {
           System.out.println("Enter Grades (negative number to quit): ");
           grade = sc.nextInt();
           // exit loop if it is <0
           if (grade < 0)
               break;
           //increasing the respective counter variable
           if (grade >= 93)
               a++;
           else if (grade >= 90)
               an++;
           else if (grade >= 87)
               bp++;
           else if (grade >= 83)
               b++;
           else if (grade >= 80)
               bn++;
           else if (grade >= 77)
               cp++;
           else if (grade >= 73)
               c++;
           else if (grade >= 70)
               cn++;
           else if (grade >= 60)
               d++;
           else
               f++;
           total++;
       }
       System.out.println("Total number of grades = " + total);
       System.out.println("Number of A's = " + a);
       System.out.println("Number of A-'s = " + an);
       System.out.println("Number of B+'s = " + bp);
       System.out.println("Number of B's = " + b);
       System.out.println("Number of B-'s = " + bn);
       System.out.println("Number of C+'s = " + cp);
       System.out.println("Number of C's = " + c);
       System.out.println("Number of C-'s = " + cn);
       System.out.println("Number of D's = " + d);
       System.out.println("Number of F+'s = " + f);
   }
}