Factory vs instance constructors

Question

I can\'t think of any reasons why one is better than the other. Compare these two implementations:

public class MyClass
{
    public MyClass(string fileName         


        

Answer 1

Another common case where factory methods help (in languages like C# which don't support type inference from constructor) is when you have to minimize type parameter specification. Consider the common case of Tuple class. You can either do:

new Tuple(1, 1); //constructor call

or

Tuple.Create(1, 1); //factory pattern.