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#Design pattern samples in Java.
##Abstract Factory Intent: Provide an interface for creating families of related or dependent objects without specifying their concrete classes.
##Builder Intent: Separate the construction of a complex object from its representation so that the same construction process can create different representations.
##Factory Method Intent: Define an interface for creating an object, but let subclasses decide which class to instantiate. Factory Method lets a class defer instantiation to subclasses.
##Prototype Intent: Specify the kinds of objects to create using a prototypical instance, and create new objects by copying this prototype.
##Singleton Intent: Ensure a class only has one instance, and provide a global point of access to it.
##Adapter Intent: Convert the interface of a class into another interface clients expect. Adapter lets classes work together that couldn't otherwise because of incompatible interfaces.
##Bridge Intent: Decouple an abstraction from its implementationso that the two can vary independently.
##Composite Intent: Compose objects into tree structures to represent part-whole hierarchies. Composite lets clients treat individual objects and compositions of objects uniformly.
##Decorator Intent: Attach additional responsibilities to an object dynamically. Decorators provide a flexible alternative to subclassing for extending functionality.
##Facade Intent: Provide a unified interface to a set of interfaces in a subsystem. Facade defines a higher-level interface that makes the subsystem easier to use.