Gradebook

Create a Gradebook program for your teacher. Each mini-lab is associated with a unit from the AP CSA course and contains a series of missions.

Mini-Lab 1 : Use Variables and Arithmetic Expressions

Mission 1 : Computing an Average

Write a program that prompts the user to enter a grade 3 times and then computes the average of these grades. Guiding questions:

What data type should each grade variable be? What will you name these grade variables?
Should you use integer or floating-point division to calculate the grade? Why would you want to use one type over another?

Mission 2 : Rounding Appropriately

Your teacher wants you to round the grade appropriately, does this change which type of division you are choosing to use?

Mission 3 : Random Bonus Points

Your teachers wants you to add a random number of bonus points to the sum of the grades. The random number of bonus points is between 1 and 5.

Need help? Consult the following tutorials:

Mini-Lab 2 : Using Selection and Iteration

Make your program more abstract by using iteration to obtain any number of grades.

Mission 1 : Use a Loop to Enter Grades

Modify the Unit 1 Gradebook program to use a loop to enter 10 grades.

Mission 2 : Prompt the User for Number of Grades

Modify the program to ask the user for the number of grades they want to enter first and then use the loop to allow that many grades to be entered.

Mission 3 : Enter Grades until -999 is Entered

Modify the program to continue to enter grades until -999 is entered. Be sure -999 is not included as part of the student average.

Mission 4 : Enter a String of grades

Instead of obtaining grades one at a time from the user, have them enter a list of grades, with each grade followed by a comma.

For example: 90,89,92,93,90,

Use String methods indexOf and substring to obtain each grade as a String and then use Integer.parseInt() to convert the String to an int.

Mission 5 : Drop Lowest Grade

Instead of adding a random number of bonus points, the teacher wants to drop the lowest grade before computing the average. Modify the program to allow for the lowest grade to be dropped.

Need help? Consult the following tutorials:

Mini-Lab 3 : Incorporating Classes

Mission 1 : Student Class

Create a Student class. Each student should have a first name, last name, and a String of grades where each grade is followed by a comma. Include a method to calculate the average of a Student object.

Need help? Consult the following tutorials:

Mini-Lab 4 : Array, ArrayList, and 2D Array

Mission 1 : Create Gradebook Class

Create a Gradebook class that contains an ArrayList of students and the name of the class.

Mission 2: Read Grades From a File

Create a file that contains the first name, last name, and list of grades with each grade followed by a comma. Separate the first name, last name, and grades list with a semicolon. Each student should be on their own line.

For example: Duchess;Java;90,89,92,93,90, Duke Blaze;Java;88,87,90,89,88,

Use the split method to extract the names and grades.

Mission 3 : Add printAverages Method

Add a method to Gradebook called printAverages that will print the first name of each student and their average.

Mission 4 : Add createSeatingChart Method

Add a method to Gradebook called createSeatingChart that will return a 2D array to represent a seating chart. It should have parameters for the teacher to specify the size of the room.