C Sharp Grade Book Application

The C Sharp Grade Book Application is a designed to allow instructors to create gradebooks, add students to those grade books, add grades to those students, and calculate statics such as GPA (Grade Point Average).

Accepted Commands

Commands when no gradebooks are open

• "Create Name of Gradebook Is this Gradebook Weighted (true/false)" : Creates a new gradebook with the provided name
• "Help" : gives you a list of all valid commands within the given context
• "Load Name of GradeBook"
• "Quit" : Closes the application

Commands when a gradebook is open

• "Add Name of Student Type of Student Type of Enrollment" : Adds a new student to the open gradebook
• "Remove Name of Student" : Removes a student with the provided name from the gradebook, if a student with that name exists in the gradebook
• "List" : Lists all students in the open gradebook
• "AddGrade Name of Student Score" : Adds to the given value to provided student's grades
• "RemoveGrade Name of Student Score" : Removes the given value from the provided student's grade, if that value exists in the student's grades
• "Statistics all" : Provides statistical output for all students in the open gradebook
• "Statistics Name of Student" : Provides statistical out put for the provided student, if that student exists
• "Help" : Gives you a list of all valid commands within the given context
• "Save" : Saves the open gradebook
• "Close" : Closes the gradebook

Setup the Application

If you want to use Visual Studio

If you want to use Visual Studio (highly recommended) follow these steps:

• If you already have Visual Studio installed make sure you have .Net Core installed by running the "Visual Studio Installer" and making sure ".NET Core cross-platform development" is checked
• If you need to install Visual Studio, download it at https://www.microsoft.com/net/download/
  • If you're using Windows you'll want to check ".NET Core cross-platform development" on the workloads screen during installation
• Open the GradeBook.sln file in Visual Studio
• To run the application simply press the Start Debug button (green arrow) or press F5
• If you're using Visual Studio on Windows, to run tests open the Test menu, click Run, then click on Run all tests (results will show up in the Test Explorer)
• If you're using Visual Studio on macOS, to run tests, select the GradeBookTests Project, then go to the Run menu, then click on Run Unit Tests (results will show up in the Unit Tests panel)

(Note: All tests should fail at this point; this is by design. As you progress through the projects more and more tests will pass. All tests should pass upon completion of the project.)

If you don't plan to use Visual studio

If you would rather use something other than Visual Studio

• Install the .Net Core SDK from https://www.microsoft.com/net/download/core. Once that installation completes you're ready to roll!
• To run the application go into the GradeBook project folder and type dotnet run
• To run the tests go into the GradeBookTests project folder and type dotnet test

Features you will implement

• Add support for Ranked Grading
• Add support for Weighted GPAs

Tasks necessary to complete implementation

Note: This isn't the only way to accomplish implementation, however; this is what the project's tests are expecting. Implementing the features in a different way will likely result in being marked as incomplete / incorrect.

• Add support for Ranked Grading

  • Creating The GradeBookType Enum.

    • Create a new Enum GradeBookType.
      • This should be located in the Enums directory.
      • This should use the GradeBooks.Enums namespace.
      • This should use the public access modifier.
      • This should contain the values Standard, Ranked, ESNU, OneToFour, and SixPoint.

  • Add Type property

    • Add a new property Type to BaseGradeBook
      • This should use the name Type.
      • This should be of type GradeBookType.
      • This should use the public access modifier.

  • Creating the StandardGradeBook class

    • Create a class StandardGradeBook (Once this change is made the code will not compile until completion of the next task)
      • This should be located in the GradeBooks directory.
      • This should use the GradeBook.GradeBooks namespace.
      • This should inherit the BaseGradeBook class.
    • Create a constructor for StandardGradeBook
      • This should accept a parameter name of type string.
      • This should set Type to GradeBookType.Standard.
      • This should call the BaseGradeBook constructor by putting : base(name) after the constructor declaration. (This was not covered in the course, it calls the constructor of the inherited class.)

  • Creating the RankedGradeBook class

    • Create a class RankedGradeBook (Once this change is made the code will not compile until completion of the next task)
      • This should be located in the GradeBooks directory.
      • This should use the GradeBook.GradeBooks namespace.
      • This should inherit the BaseGradeBook class.
    • Create a constructor for RankedGradeBook
      • This should accept a parameter name of type string.
      • This should set Type to GradeBookType.Ranked.
      • This should call the BaseGradeBook constructor by putting : base(name) after the constructor declaration. (This was not covered in the course, it calls the constructor of the inherited class.)

  • Override RankedGradeBook's GetLetterGrade method

    • Provide the appropriate grades based on how the input grade compares to other students. (One way to solve this is to figure out how many students make up 20%, then loop through all the grades and check how many scored higher than the input average, every N students where N is that 20% value drop a letter grade.)
      • If there are less than 5 students throw an InvalidOperationException.
      • Return A if the input grade is in the top 20% of the class.
      • Return B if the input grade is between the top 20 and 40% of the class.
      • Return C if the input grade is between the top 40 and 60% of the class.
      • Return D if the input grade is between the top 60 and 80% of the class.
      • Return F if the grade is below the top 80% of the class.

  • Override RankedGradeBook's CalculateStatistics method

    • Short circuit the method if there are less than 5 students.
      • If there are less than 5 students write "Ranked grading requires at least 5 students." to the Console.
      • If there are 5 or more students call the base class's CalculateStatistics method using base.CalculateStatistics.

  • Override RankedGradeBook's CalculateStudentStatistics method

    • Short circuit the method if there are less than 5 students.
      • If there are less than 5 students write "Ranked grading requires at least 5 students." to the Console.
      • If there are 5 or more students call the base class's CalculateStudentStatistics method using base.CalculateStudentStatistics.

  • Update StartingUserInterface's CreateCommand method

    • Update CreateCommand's Conditions
      • When checking the parts.Length it should check that parts.Length is not 3.
      • If parts.Length is not 3 write "Command not valid, Create requires a name and type of gradebook." to the Console.
    • return a new GradeBook based on the provided type
      • If the value of parts[2] is "standard" return a newly instantiated StandardGradeBook using the name variable.
      • If the value of parts[2] is "ranked" return a newly instantiated RankedGradeBook using the name variable.
      • If the value of parts[2] doesn't match the above write the value of parts[2] followed by " is not a supported type of gradebook, please try again" to the console, then escape the method.

  • Update StartingUserInterfaces's HelpCommand method

    • Change where HelpCommand outlines the "create" command to write "Create 'Name' 'Type' - Creates a new gradebook where 'Name' is the name of the gradebook and 'Type' is what type of grading it should use." to the console.

  • Make the BaseGradeBook class abstract

    • Add the abstract keyword to the BaseGradeBook declaration.

• Add support for weighted GPAs

  • Add IsWeighted property to BaseGradeBook

    • Create a new bool property named IsWeighted in BaseGradeBook
      • This should use the public access modifier.
      • This should be of type bool.
      • This should be named IsWeighted.

  • Refactor constructor of BaseGradeBook Note, once this group of tasks is begun the code will not compile until the entire group of tasks is complete.

    • Add a bool to the BaseGradeBook constructor
      • This should be of type bool.
      • This should be the second parameter.
    • Set IsWeight in the BaseGradeBook constructor
      • Set the IsWeighted property using the bool parameter
    • Add a bool to the StandardGradeBook constructor
      • This should be of type bool.
      • This should be the second parameter.
      • This will require the bool to be added to the call to the base constructor.
    • Add a bool to the RankedGradeBook constructor
      • This should be of type bool.
      • This should be the second parameter.
      • This will require the bool to be added to the call to the base constructor.
    • Update StartingUserInterface.CreateCommand condition
      • Change the condition checking if parts is not equal to 3 to be is not equal to 4.
    • Update StartingUserInterface.CreateCommand to accept IsWeighted
      • This should use parts[3] for the last parameter where the gradebooks are instantiated.
      • Update the message provided by this condition to write to the console "Command not valid, Create requires a name, type of gradebook, if it's weighted (true / false).".

  • Update BaseGradeBook.GetGPA

    • Add 1 point to GPA when student is Honors or DualEnrolled

  • Update HelpCommand

    • Change where the HelpCommand outlines the "create" command to say "Create 'Name' 'Type' 'Weighted' - Creates a new gradebook where 'Name' is the name of the gradebook, 'Type' is what type of grading it should use, and 'Weighted' is whether or not grades should be weighted (true or false)."

What Now?

You've completed the tasks of this project, if you want to continue working on this project some next steps would be to add support for some of the other grading formats, set Save to run automatically when Adding/Removing students and grades, etc.

Otherwise now is a good time to continue on the C# path to expand your understanding of the C# programming language or start looking into the User Interface options of C# whether that's ASP.NET (web), XAML (applications), DirectX (graphically intense applications), etc