Code

Interface Example

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Algorithm Description

This program demonstrates the use of an interface to define a contract for classes. The Animal interface declares a method sound(), which is implemented by the Dog class. The Dog class provides a specific implementation of the sound() method, printing a bark sound along with the dog's favorite toy. This highlights how interfaces enforce method implementation in classes.

Real-Life Use Cases

  • Payment Systems: An interface like PaymentProcessor can define methods like processPayment(). Classes such as CreditCardProcessor or PayPalProcessor implement the interface to handle different payment methods.
  • Appliance Control: An Appliance interface might declare methods like turnOn() and turnOff(). Classes like WashingMachine, AirConditioner, and Refrigerator implement these methods, ensuring they all respond to standard commands while retaining their specific behaviors.