Answer to Question #243162 in Java | JSP | JSF for guru

Question

Create a program that takes in a student’s full names and marks for 3 In-class exercises, then calculate the average of this marks. This average mark is then categorized as follows: Marks obtained Grade Level Message 80 – 100 1 Magnificent!!

70 – 79 2 Excellent!!

60 – 69 3 Good work!!

50 – 59 4 Good!!

0 – 49 0 Fail – Try again next Year!!

Greater than 100 or less than 0 X Invalid Marks!!, Marks too high. Or Invalid Marks!!, Negative marks not allowed.

Sample run 1: Enter student full names: Goodluck Johnathan Enter 3 marks separated by spaces: 78 94.6 88

Output: Student name: Goodluck Johnathan Grade Level: 1 Comment: Magnificent!! Sample run 2: Enter student full names: Ellen Johnson Sirleaf Enter 3 marks separated by spaces: 200 104.87 99.9

Output: Student name: Ellen Johnson Sirleaf Grade Level: X Comment: Invalid Marks!!, Marks too high

Answer 1

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        int comment = 1;
        while (true) {
            System.out.print("Enter student full names: ");
            String name = in.nextLine();
            System.out.print("Enter 3 marks separated by spaces: ");
            double average = 0;
            for (int i = 0; i < 3; i++) {
                average += in.nextDouble();
            }
            in.nextLine();
            average /= 3;
            System.out.print("Student name: " + name + " Grade level: " + comment++ + " Comment: ");
            if (average > 100) {
                System.out.println("Invalid Marks!!, Marks too high.");
            } else if (average < 0) {
                System.out.println("Invalid Marks!!, Negative marks not allowed.");
            } else if (average >= 80) {
                System.out.println("Magnificent!!");
            } else if (average >= 70) {
                System.out.println("Excellent!!");
            } else if (average >= 60) {
                System.out.println("Good work!!");
            } else if (average >= 50) {
                System.out.println("Good!!");
            } else {
                System.out.println("Try again next Year!!");
            }
        }
    }
}