C++ Code

Exercise A: Gradebook1D

Write an application that prints out the final grade of the students in a class and the average for the whole class. There are a total of 3 quizzes.

You will need 4 arrays:

An array of type int to store all the ID's

An array of type double to store all scores for quiz 1

An array of type double to store all scores for quiz 2

An array of type double to store all scores for quiz 3

How to proceed:

Ask the user how many students are in the class, so you can set the length of the all arrays.

Allocate 4 arrays that will store the data.

Use a FOR loop to retrieve and store all the data.

Use another FOR loop to

Output the final score for each student.

Keep track of all scores to later compute the average for the class.

Calculate and Output the average for the class.

Format all floating-point numbers to 2 decimal places.

Sample Output:

How many students in the class? 4

Enter student ID: 111

Enter score for Quiz 1: 100

Enter score for Quiz 2: 95

Enter score for Quiz 3: 90

Enter student ID: 222

Enter score for Quiz 1: 90

Enter score for Quiz 2: 85

Enter score for Quiz 3: 80

Enter student ID: 333

Enter score for Quiz 1: 100

Enter score for Quiz 2: 100

Enter score for Quiz 3: 100

Enter student ID: 444

Enter score for Quiz 1: 90

Enter score for Quiz 2: 90

Enter score for Quiz 3: 90

ID 111 - Final grade: 95.00

ID 222 - Final grade: 85.00

ID 333 - Final grade: 100.00

ID 444 - Final grade: 90.00

Class average: 92.50