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Labs

Add Features to Grade Book Application Using C#

In this code lab, you will use the C# programming language to add new features to an existing grade book application.

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Labs

Path Info

Level
Clock icon Intermediate
Duration
Clock icon 2h 20m
Last updated
Clock icon Aug 13, 2025

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Table of Contents

  1. Challenge

    Create a New Enum GradeBookType

    Add support for multiple types of grade books to the GradeBook application. ### Solution To view the solution, run git diff origin/master..module1-solution in the Terminal, and press Enter to see the next lines of the difference.

    You may also browse the files of the solution by stashing your changes with git stash and running git checkout module1-solution to switch branches.

  2. Challenge

    Create GetLetterGrade Override

    Override RankedGradeBook's GetLetterGrade method to use ranked grading. ### Solution To view the solution, run git diff origin/master..module2-solution in the Terminal, and press Enter to see the next lines of the difference.

    You may also browse the files of the solution by stashing your changes with git stash and running git checkout module2-solution to switch branches.

  3. Challenge

    Create CalculateStatistics Override

    Override the CalculateStatistics and CalculateStudentStatistics methods when called from RankedGradeBook to prevent continuing when there are less than 5 students. ### Solution To view the solution, run git diff origin/master..module3-solution in the Terminal, and press Enter to see the next lines of the difference.

    You may also browse the files of the solution by stashing your changes with git stash and running git checkout module3-solution to switch branches.

  4. Challenge

    Increase Parts Check to 3

    Update the StartingUserInterface class to support multiple types of grade books. ### Solution To view the solution, run git diff origin/master..module4-solution in the Terminal, and press Enter to see the next lines of the difference.

    You may also browse the files of the solution by stashing your changes with git stash and running git checkout module4-solution to switch branches.

  5. Challenge

    Change BaseGradeBook to be an Abstract Class.

    Make BaseGradeBook into an abstract class. ### Solution To view the solution, run git diff origin/master..module5-solution in the Terminal, and press Enter to see the next lines of the difference.

    You may also browse the files of the solution by stashing your changes with git stash and running git checkout module5-solution to switch branches.

  6. Challenge

    Create IsWeighted Property

    Add support for weighted grading to the GradeBook Application. ### Solution To view the solution, run git diff origin/master..module6-solution in the Terminal, and press Enter to see the next lines of the difference.

    You may also browse the files of the solution by stashing your changes with git stash and running git checkout module6-solution to switch branches.

Eric Fisher - Labs - Eric
Author
Eric Fisher

Eric is a software developer who is passionate about always learning and improving. When he's not writing code, you'll find him playing computer games, guitar, disc golf, or learning something new.

What's a lab?

Hands-on Labs are real environments created by industry experts to help you learn. These environments help you gain knowledge and experience, practice without compromising your system, test without risk, destroy without fear, and let you learn from your mistakes. Hands-on Labs: practice your skills before delivering in the real world.

Provided environment for hands-on practice

We will provide the credentials and environment necessary for you to practice right within your browser.

Guided walkthrough

Follow along with the author’s guided walkthrough and build something new in your provided environment!

Did you know?

On average, you retain 75% more of your learning if you get time for practice.
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