Structural design patterns in java

As per the design pattern reference book Design Patterns – Elements of Reusable Object-Oriented Software , there are 23 design patterns which can be classified in three categories: Creational, Structural and Behavioral patterns.

Factory Pattern We can apply a Singleton pattern on the Factory class or make the factory method static. Check out Factory Design Pattern for example program and factory pattern benefits. This is one of the most widely used java design patterns.

Design Patterns