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