List of Design Patterns

    1. Creational Design Patterns. 
    2. Structural Design Patterns.
    3. Behavioural Design Patterns.

Creational Design Patterns

    Prototype Pattern.  (implemented with UI Button ).
    Singleton Pattern.  (implemented with simple comparable object example).
    Abstract Factory Pattern.  (implemented with Payment Gateway).
    Builder Pattern.  (implemented with car example).
    Factory Method Pattern.  (implemented with making different charts).

Structural Design Patterns

    Adapter Pattern. (implemented with weighting machine).
    Decorator Pattern.(implemented with parking lot).
    Facade Pattern.(implemented with ecommerce example).
    Proxy Pattern. (implemeneted with lazy load of image).
    Composite Pattern. (implemented with  file design system).

Behavioural Design Patterns

    Iterator Pattern. (Iterate all users list )
    Observer Pattern. (stock exchange notify the traders)
    Command Pattern. (implement race car with commands)
    Strategy Pattern. (implement action game)
    Template Method Pattern.  (implement with payment)