Java Design Patterns

Implemented below design patterns in java:

1. Behavioral Design Patterns
   --> a. Command
   --> b. Iterator
   --> c. Observer
   --> d. Stratergy
   --> e. Template
   
2. Creational Design Patterns
   --> a. Builder
   --> b. Factory
   --> c. Prototype
   --> d. Singleton
   
3. Structural Design Patterns
   --> a. Adapter
   --> b. Bridge
   --> c. Composite
   --> d. Decorator
   --> e. Filter
   --> f. Proxy