Question

Sections 7.1

Write a program that reads student scores, gets the best score, and the assigns grades based on the following scheme:

Grade is A if scores is >= best - 10;

Grade is B if scores is >= best - 20;

Grade is C if scores is >= best - 30;

Grade is D if scores is >= best - 40;

Grade is F otherwise.

The program prompts the user to enter the total number of students, then prompts the user to enter all of the scores, and concludes by displaying the grades. Here is a sample run:

Sample run:

Enter the number of students: 4
Enter 4 scores: 40 55 70 58

Student 0 score is 40 and grade is C

Student 1 score is 55 and grade is B

Student 2 score is 70 and grade is A

Student 3 score is 58 and grade is B

Please write in Java Script.

Thank you!

Answer 1

import java.util.Scanner;

public class StudentGrades {

    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        System.out.print("Enter the number of students: ");
        int n= in.nextInt();
        System.out.print("Enter " + n + " scores: ");
        int[] scores = new int[n];
        int best = 0, score;
        char grade;
        for (int i =0 ; i < n; i++) {
            scores[i] = in.nextInt();
            if (scores[i] > best)
                best = scores[i];
        }
        for (int i =0 ; i < n; i++) {
            score = scores[i];
            if (score >= best - 10) {
                grade = 'A';
            } else if (score >= best - 20) {
                grade = 'B';
            } else if (score >= best - 30) {
                grade = 'C';
            } else if (score >= best - 40) {
                grade = 'D';
            } else {
                grade = 'F';
            }
            System.out.printf("Student %d score is %d and grade is %c\n", i, score, grade);
        }
    }
}