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.

-- Gif of working Application

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 stundent'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 currently 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 for Windows users) follow the following 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/core#windowsvs2017 On the workloads screen make sure ".NET Core cross-platform development" is checked
• To run the application simply press the Start Debug button (green arrow) or press F5
• To run the tests go to "Test" and select "Run All Tests" (you might need to goto "Test" > "Windows" > "Test Explorer" to display the results if you closed the test explorer.)

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 /verbosity:quiet (for OSX users use dotnet test --verbosity:quiet instead)

Features you will impliment

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

Tasks necessary to complete implimentation:

Note: this isn't the only way to accomplish this, however; this is what the project's tests are expecting. Implimenting this 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 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 inheritted class.)_

  • Creating the RankedGradeBook class

    • Create a class RankedGradeBook _(Once this change is made 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 inheritted class.)

  • Add Multiple GradeBookType support to BaseGradeBook

    • Update BaseGradeBook's Load method (All code for this take will be written in place of the Load method's return statement)
      • This should get the GradeBookType using Enum.Parse(typeof(GradeBookType), jobject.GetValue("Type").ToString(), true); (this was not covered in the course, it will take the saved file and attempt to get the type of the gradebook from it)
      • If the GradeBookType is GradeBookType.Standard create the gradebook using JsonConvert.DeserializeObject<StandardGradeBook>(json); (this was also not covered in the course, it will take the saved file and create a StandardGradeBook object based on that file)
      • If the GradeBookType is GradeBookType.Ranked create the gradebook using JsonConvert.DeserializeObject<RankedGradeBook>(json); (this was also not covered in the course, it will take the saved file and create a RankedGradeBook object based on that file)
      • If the GradeBookType is not yet handled throw an InvalidOperationException with message of "The gradebook you've attempted to load is not in a supported type of gradebook.";
      • return the created gradebook.

  • Override RankedGradeBook's GetLetterGrade method

    • Provide the appropriate grades based on where 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 were more 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 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 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 console.

  • Make the BaseGradeBook class abstract

    • Add the abstract keyword to the BaseGradeBook declarition.

• 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 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 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 compeleted 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 with Add/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