Tag: data

Guys, good night.

I'm studying C #, and one of the questions that's asked is this:

I have a course Student:

public class Aluno
{
    public String Nome { get; set; }
    public String Ra { get; set; }
    public Decimal NotaB1 { get; set; }
    public Decimal NotaB2 { get; set; }


    public Decimal getMedia()
    {
        return (NotaB1 + NotaB2) / 2;
    }

}

A class Technological student who inherits from Student:

 public class AlunoTecnologo : Aluno
{
    public Decimal NotaPim { get; set; }

    public Decimal getMedia()
    {
        return NotaPim * 0.2m + base.getMedia();
    }
}

I simulate the persistence of the data in a database, so I created the class Dao Student where I create a list to save students in memory:

public class AlunoDao
{
    private List alunos;

    public AlunoDao()
    {
        alunos = new List();
    }

    public void Adicionar(Aluno aluno)
    {
        alunos.Add(aluno);
    }

    public List Listar()
    {
        return new List(alunos);
    }
}

However when backing up a Technological student In this list, the average is calculated using the class method Student and no class Technological student where another note is inserted. Here is an example of what the code looked like:

static void Main(string() args)
    {
        Aluno vizu = new Aluno()
        {
            Nome = "Joao Vizu",
            Ra = "N300361",
            NotaB1 = 7.5M,
            NotaB2 = 10M
        };

        AlunoTecnologo lais = new AlunoTecnologo()
        {
            Nome = "Lais Silva",
            Ra = "545454",
            NotaB1 = 7.5M,
            NotaB2 = 10M,
            NotaPim = 9M
        };

        AlunoDao dao = new AlunoDao();

        dao.Adicionar(vizu);
        dao.Adicionar(lais);

        foreach (Aluno aluno in dao.Listar())
        {
            Console.WriteLine($"Nome: {aluno.Nome}tNotaB1: {aluno.NotaB1}tNotaB2: {aluno.NotaB2}tMedia: {aluno.getMedia()}");
        }

        Console.ReadKey();
    }

What should I do to be able to add to this list the correct data for each student, after the inheritance? Should I create a CAD course for StudentTechnologist?