OOP Design Pattern

Abstract Factory Pattern: Create instances of classes belonging to different families (abstract method, 1 products 2 style)
http://penyu91.blogspot.my/2016/08/abstract-factory-pattern.html

Builder Pattern: Separate representation and object construction.
http://penyu91.blogspot.my/2016/08/builder-design-pattern.html

Factory Method Pattern: Create instances of derived classes.
http://penyu91.blogspot.my/2016/08/factory-pattern.html

Prototype Pattern: Clone or copy initialized instances.
http://penyu91.blogspot.my/2016/08/prototype-pattern.html

Singleton Pattern: Class with only one single possible instance.
http://penyu91.blogspot.my/2016/03/singleton-pattern.html