Word Count : 812

---

Object Oriented Programming in Java emphasizes abstraction, encapsulation, inheritance, and polymorphism. Among these principles, abstraction plays a vital role in reducing complexity by hiding implementation details and exposing only essential features. In Java, abstraction can be achieved through abstract classes and interfaces. An abstract class allows partial abstraction by including both abstract and concrete methods, while an interface provides complete abstraction by defining method signatures without implementation. The following Java programs demonstrate the use of abstract class and interface with necessary assumptions. An abstract class is declared using the keyword abstract. It cannot be instantiated directly and may contain abstract methods (without body) as well as concrete methods (with body). Abstract classes are useful when different subclasses share common behavior but also require specific implementations of certain methods. Consider a scenario of a banking system in which different types of accounts calculate interest differently. We assume that all accounts have an account number and balance, and each type of account must implement _____ ______ _____ ______ _____ ________ ______ ______ __________.
______ ___ _______ ________ _______ _________ ________.
________ __________ ___ ________ _____ ___ ______ ___ __________ ____.
_______ _________ ____ ___ _________ ___ ___.
__________ _______ ___ _________ __________ ________ ________ ____.
______ ____ ______ ______ ___ ________ ________.
________ ___ ____ ___ ________ ______ _____ ______ ______.
____ ________ ________ __________ _____.
_______ _______ _____ __________ ________.
___ ______ ___ ___ ____ ________ _________ _______ __________.
________ _______ ______ ________ _________.
______ _______ _____ ________ _________ _______ _______ ______ __________ ____ ________.
__________ ___ _____ ______ ____ ____ _______ ____ ______ ________.
_________ _____ __________ _________ _________ ______ _______ ___ __________ _______ ________.
_________ ____ __________ ____ __________ __________ ____ __________.
__________ ________ _______ ___ ___ _____ _____ ____ _____ ________.
____ ___ ____ ________ ______.
_____ ___ ________ ___ _________ ___ _____ ____.
________ ___ ____ ___ ______ __________ _______ ____.
_________ ___ _______ __________ __________ __________ _________ ______ _____ __________.
_______ _______ ___ ______ _______.
___ _____ __________ ______ _______ ____.
______ ___ ____ ___ __________ ____ ______.
__________ ____ _________ ________ _________ _____.
___ _______ ______ _________ ______ ______ ________ ________ ___.
______ _______ ___ _____ ________ __________ ____.
__________ _______ ___ _______ _____ _____ ____ ____ ___ _________ _____ __________.
_______ ______ ________ __________ __________ _______ __________ __________ _______ ____ __________ _______.
_______ _______ ______ ____ ________ _____ _________ _____.
___ _____ ________ ___ ______ ______ _____ _______.
________ ___ _______ _______ ______ _________.
___ ____ _____ _______ ________ __________ ______ ___ __________ __________ ________ ________.
__________ _________ _________ ___ ________ _________ ______ ___ ______.
________ _____ __________ ______ ________ __________.
____ __________ ____ __________ __________ _____.
_____ ___ __________ _______ ________ ____ _________.
_________ ________ _______ _________ _____ ___ __________ ___ ____ _______ _______.
___ ______ _________ _____ ________ ________ _______ ______ _______.
____ ____ _______ ______ _____.
_______ _____ ________ __________ ______ ________.
______ ____ ____ ___ ____ ________ _______.
_____ ________ _________ ________ ____ ____ _____ ______ ___ ____ _______ ___.
_____ _________ ______ _______ _______.
_______ __________ _______ ________ _________ ______ _______ ________.
______ _______ _____ _______ ____ ___ ________ ______ _______ __________ __________.
____ ______ __________ ____ ______.
_______ ____ _______ ________ ________ ____ __________ ________ _________.
_____ _____ ______ ______ ______ __________ ___ ____.
_______ ________ ____ _________ _______ _________ _________ _________ ____ __________.
_____ _________ _________ _________ ____ _____ _______.
______ ____ ___ ________ ____ _______.
________ ___ ____ ______ ______ _____ _______ ____.
________ ____ ____ __________ __________ _________ _____ ___ __________ _______.
________ _______ _________ ________ _________ ________ _________ ________ _________ _________ ______.
________ ________ _______ _________ __________ _______ __________ _____ ________ ___ ___ _________.
_______ _________ _________ ____ _________ _____ _____ ______ _____.
______ _________ _____ __________ _________ ______ _________ _______.
___ ______ _____ _______ __________.
___ ______ __________ ___ _________ _______ ___ ________ ____.
_______ _______ ____ __________ ______ __________ ______ ______.
___ ____ _________ ________ ____ ______ _______ ________.
_________ _____ ______ __________ ___ _______ _______ ___ _____ ________ __________.
________ _____ ____ __________ ____ ______ _________ _________.
_______ ___ __________ ________ __________ ____ __________ ______ __________.
____ ____ ____ ____ __________ ___ ______ ____ ___ _________.
_____ _________ ______ ____ _________ _____ _____ ___ _______.
______ _________ ___ ________ _________ ____.
_____ __________ __________ ______ ______ ____ __________ ________ ____ _______ ______ ____.
_________ _________ ______ ________ __________ ________ _____.
_____ _________ ___ __________ ____ ___.
_______ ____ _____ ________ ________ _____ ___ _________ _________ _________ __________ ____.
__________ ______ _________ _____ ______ _______.
__________ _________ _________ _____ ________.
_____ ______ __________ ___ _________ _________ _________.
_______ _____ _______ _____ _______ ________ __________ ___.
__________ ________ ___ ________ _________ ____ ________ _______ __________ ________ _________.
_________ ______ ____ _________ ___.
_________ ________ _______ _______ _______ ______ ____ _______ ____ _______ ____.
_____ ____ ______ _______ ___ ______.
___ __________ ___ ________ __________ ___.
Get Full Answer on WhatsApp