A simple letter grades program in Java programming language.
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Program Listing
/* grades.java
*
* Author : Jake Rodriguez Pomperada, MAED-IT, MIT
* www.jakerpomperada.com and www.jakerpomperada.blogspot.com
* jakerpomperada@gmail.com
* Bacolod City, Negros Occidental Philipipines
*/
import java.util.Scanner;
public class letter_grades
{
private static int sumOfArray(int [] arr)
{
int sum = 0;
for (int i : arr)
sum += i;
return sum;
}
private static char getGrade(int grade)
{
if (grade >= 91 && grade <= 100)
return 'A';
else if (grade >= 81 && grade <= 90)
return 'B';
else if (grade >= 71 && grade <= 80)
return 'C';
else if (grade >= 61 && grade <= 70)
return 'D';
else if (grade <= 60)
return 'E';
return 0;
}
public static void main(String[] args)
{
System.out.println("\n\tLetter Grades in Java\n");
System.out.print("# of grades: ");
Scanner input = new Scanner(System.in);
int numberOfGrades = input.nextInt();
int[] scores = new int[numberOfGrades];
for (int i = 0; i < scores.length; i++)
{
System.out.printf("Grade (%d): ", i + 1);
scores[i] = input.nextInt();
}
int total_sum = sumOfArray(scores);
int avg = (total_sum / numberOfGrades) * 10;
String output = "";
output += "Your Grade is " + avg + ": Descriptive Rating: " + getGrade(avg);
System.out.println(output);
input.close();
}
}
