Question

Use java (I already have some of the code just I'm not the best please help!)

Write a program that will ask the user to enter 5 quiz grades. Add each quiz grade to a double variable called quizTotals. Then, calculate the average of all 5 quiz grades, and store it in a double variable called quizAverage.. Display the following output to the user:

Enter quiz grade #1:
Enter quiz grade #2:
Enter quiz grade #3:
Enter quiz grade #4:
Enter quiz grade #5:

The following quiz grades were entered: 100.0 97.0 67.0 85.0 78.0

The average of all quiz grades is: 85.4

Criteria

A double variable is defined for each quiz grade input by user, and a double variable is defined for the sum, and another for the average.

The sum variable is divided by 5 and the answer is placed in the average variable.

The quiz grades are displayed on one line, each separated by a space. The average is displayed on a separate line. Each have a short label in front of the actual numbers.

Answer 1

import java.util.Scanner;

public class QuizAverage {

    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        double quizTotals = 0, quizAverage;
        double[] grades = new double[5];
        for (int i = 0; i < grades.length; i++) {
            System.out.print("Enter quiz grade #" + (i + 1) + ": ");    // display prompt for grade
            grades[i] = in.nextDouble();    // read a grade and store it in array
        }
        System.out.print("The following quiz grades were entered:");
        for (int i = 0; i < grades.length; i++) {   // go through all grades
            System.out.print(" " + grades[i]);  // print grade
            quizTotals += grades[i];    // add grade to quizTotals
        }
        quizAverage = quizTotals / grades.length;   // compute average
        System.out.println("\nThe average of all quiz grades is: " + quizAverage);  // print average
    }
}