Design Patterns Uncovered: The Factory Method Pattern | Javalobby

Define an interface for creating an object, but let the subclasses decide which class to instantiate. The Factory method lets a class defer instantiation to subclasses

http://javapapers.com/design-patterns/factory-method-pattern/
Assume that you have a set of classes which extends a common super class or interface. Now you will create a concrete class with a method which accepts one or more arguments. This method is our factory method. What it does is, based on the arguments passed factory method does logical operations and decides on which sub class to instantiate.






Application

public class PetFactory {

 public Pet getPet(String petType) {




Also refer to http://sourcemaking.com/design_patterns/factory_method
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