DesignPatterns

Implementation of various design patterns in C++, Java and Python.

Strategy Pattern

Description: Strategy Pattern in implemented in a primitive VideoStreaming service, that automatically changes Streaming Strategy in run-time based on network speed of the client.

• Java Implementation
• Python Implementation

Observer Pattern

Description: A Digital News Agency and Subscriber has been designed to demonstrate the Observer pattern. Whenever there is a new news added to the NewsAgency(The Publisher/Observable), all its subscribers are notified.

• Java Implementation
• Python Implementation

Decorator Pattern

Description: Decorator pattern adds additional functionality to the existing classes. This pattern satisfies the Open-Close principle.

Example Description: This example implements the Decorator Pattern to simulate a Coffee Shop billing system, where the users can customize the coffee with condiments in infinite possibilities.

• Java Implementation
• Python Implementation

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