*7.1 (Assign grades) Write a program that reads student scores, gets the best score, and then assigns grades based on the following scheme:
Grade is A if score is Ú best - 10
Grade is B if score is Ú best - 20;
Grade is C if score is Ú best - 30;
Grade is D if score is Ú 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:
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
Grade is A if score is Ú best - 10
Grade is B if score is Ú best - 20;
Grade is C if score is Ú best - 30;
Grade is D if score is Ú 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:
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
import java.util.Scanner; public class ProgrammingEx7_1 { public static void main(String[] args) { System.out.print("Enter the number of students:"); Scanner input = new Scanner(System.in); int n = input.nextInt(); int[] score = new int[n]; int bestScore = 0; System.out.print("Enter " + n + " scores:"); for (int i = 0; i < score.length; i++) { score[i] = input.nextInt(); if (bestScore < score[i]) { bestScore = score[i]; } } // Processing grades char grade; for (int i = 0; i < score.length; i++) { if (score[i] >= bestScore - 10) grade = 'A'; else if (score[i] >= bestScore - 20) grade = 'B'; else if (score[i] >= bestScore - 30) grade = 'C'; else if (score[i] >= bestScore - 40) grade = 'D'; else grade = 'F'; System.out.println("Student " + i +" score is " + score[i] +" and grade is " + grade); } } }
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