CODEWITHSUNDEEP
c#oop
filype
filype

Reputation: 8380

Inheritance and types in C#

I'm having some trouble in allowing a Staff or a Person to "own" an account as per details below.

In the snippet below, on the Account class, I only accept Person as the owner. I kind of need to accept either a Staff or a Person

My main issue is that, later in the method applyFee(), I need to reach out the the owner object and if the owner has a feeDiscount property, I will need to use to calculate. My issue is that since in the Account class the type is Person owner I am not getting the feeDiscount as it is null.

class Person
{
  public string name;

  public Person(string newName)
  {
    name = newName;
  }
}

class Staff : Person
{
  public decimal feeDiscount;

  public override Staff(string newName)
  {
    name = newName;
    feeDiscount = 0.5;
  }

}

class Account
{
  private decimal balance = 1000;
  private Person owner;
  public Account(Person newOwner)
  {
    owner = newOwner;
  }

  public void applyFee() {

    decimal fee = 100;

    if (owner != null)
    {

      if (owner.feeDiscount) {
        balance = balance - (fee * owner.feeDiscount);
      } else {
        balance = balance - fee;
      }

    }
  }
}

class Program
{
  static void Main(string[] args)
  {

    Person person1 = new Person("Bob");
    Staff staff1 = new Staff("Alice");

    Account account1 = new Account(person1);
    Account account2 = new Account(staff1);

    account1.applyFee();
    account2.applyFee();
  }
}

Upvotes: 1

Views: 80

Answers (1)

Micahstuh
Micahstuh

Reputation: 505

If you want Person to remain as generic as possible, then you could make another class called customer who has a feeDiscount of 0.

So anyone who has any business spending money at a store, has some feeDiscount. This way, you can applyFee to a Customer or a Staff but not a Person

Upvotes: 6

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