When to use Factory method pattern?

Question

When to use Factory method pattern?

Please provide me some specific idea when to use it in project? and how it is a better way over new keyword?

Answer 1

To answer the second part of you question from my opinion, I think the reason it's better than the 'new' keyword is that the factory method reduces the dependancy on constructors of particular classes. By using a factory method, you delegate the creation of the object in question to someone else, so the caller doesn't need teh knowledge of how to create the object.