10-152-311 - Object-Oriented Programming 1

5.1 Gradebook Assignment: Overview

In this assignment, you will convert public fields and methods to be private, wrapping several of the now-private fields with constructors.

High-Level Steps:

  1. Change all fields from public to private as indicated on the class diagram.
  2. Comment out all code which fails to compile due to "inaccessible" compiler errors with a "TODO: Encapsulation" note.
  3. Ignore all compiler warnings due to unused/uninitialized fields at this time.
  4. Set up all constructors per the class diagram.
  5. Pass parameters into the constructors as required to set fields as specified in the object diagram.
  6. If fields are specified in the object diagram which are not passed into constructors, assume each of their values to be hardcoded within the appropriate constructor.

5.1 Gradebook Assignment: Class Diagram

Implement the changes specified in the following UML class diagram.

Create any button(s) and button click event handler(s) in the WPF window designer (if specified in the class diagram).

PNG image of 5.1 Gradebook UML class diagram
  1. When creating classes be sure to:
    1. Ensure the class in the root namespace. This can be done in one of two ways. Either by adding the class in the project, i.e. scenario, or by adding the class to the business classes folder and removing the ".Business_Classes" designation from the namespace.
  2. Open the main window (MainWindow.xaml) in designer mode (right-click and click "View Designer" or press Shift-F7 to go to designer mode).

5.1 Gradebook Assignment: Object Diagram

Instantiate the objects and set their field values as specified in the following UML object diagram.

PNG image of 5.1 Gradebook UML object diagram

5.1 Gradebook Assignment: Code Snippet

Within the newGradebookButton click event handler use the following code snippet as your guide to writing the code.

Delete all existing code in newGradebookButton_Click and replace it with the following:

// Create a teaching assistant.

// Create an instructor.

// Create a report card.

// Create a grade record (Database Concepts).

// Add Database Concepts to the transcript's list of grades.

// Create a grade record (OOP 1).

// Add OOP 1 to the transcript's list of grades.

// Create a grade record (Web Design 1).

// Add Web Design 1 to the transcript's list of grades.

// Create a student (Arthur).

// Create a theme.

// Create a calendar.

// Create Blackboard.

// Create a course (OOP 1).

// Add OOP 1 to blackboard's list of courses.

// Create a course (OOP 2).

// Create an assignment (Lab 1).

// Create an attempt (Pete).

// Add Pete's attempt to Lab 1's list of attempts.

// Create an attempt (Gwen).

// Add Gwen's attempt to Lab 1's list of attempts.

// Add Lab 1 to OOP 2's list of assignments.

// Create the assignment (Lab 2).

// Add Lab 2 to OOP 2's list of assignments.

// Add Arthur to OOP 2.

// Add OOP 2 to blackboards's list of courses.

// Create a new transcript for Pete.

// Create a student (Pete).

// Add Pete to OOP 2.

// Create a transcript for Gwen.

// Create a student (Gwen).

// Add Gwen to OOP 2.

Test, Complete and Submit

  1. Build your program - Eliminate compiler errors and warnings
  2. Debug/Test your program - Set breakpoints, step through code, monitor values
  3. Make your code StyleCop-compliant
  4. Close your Visual Studio solution.
  5. Compress your Visual Studio solution to a zip file.
  6. Submit the zip file via Blackboard.

Grading Rubric

PNG image of the 5.1 Gradebook rubric