Question

Based on my question – take the following code:

class Nevermore60Customer: GenericCustomer  
{  
  public Nevermore60Customer(string name, string referrerName)  
  : base (name)  
  {  
      this.referrerName = referrerName;  
  }  
  private string referrerName;  
  private uint highCostMinutesUsed;  

To me, it appears the variable “referrrerName” is being initialized “after” it is being referenced as a passed parameter in the constructor.

public Nevermore60Customer(string name, string referrerName)

Am I worng, and if so how? Or if I am right and it is being initialized after it is being referenced in the constructor, how is it possible?

Thanks

Answer 1

The position of the variable declaration compared with the constructor is irrelevant to C#.

It would make this easier to discuss if you had different names for the parameter and field though:

class Test
{
    public Test(string parameter)
    {
        this.field = parameter;
    }

    private string field;
}

Basically the field “exists” before the constructor is called. If the field is declared with an initializer, like this:

private string field = "default value";

then that initializer is run before the constructor, even though it may come after it within the source code.