Which Feature of OOP illustrated the code re-usability?Select one:a.Abstractionb.Inheritancec.Polymorphismd.Encapsulation

Break Down the Problem

1. Understanding Key Concepts: We need to evaluate the given options in the context of object-oriented programming (OOP) features.
2. Identify Purpose of Each Feature: We will define and relate each feature to the concept of code reusability to determine the correct option.

Relevant Concepts

1. Abstraction: Hides complex implementation details and shows only the essential features.
2. Inheritance: Allows a new class to inherit properties and behaviors (methods) from an existing class, promoting reusability.
3. Polymorphism: Enables a single interface to represent different underlying forms (data types).
4. Encapsulation: Restricts access to certain components, grouping data and methods that operate on the data.

Analysis and Detail

1. Reusability in OOP:
   • Inheritance is the primary feature that supports code reusability since it allows one class (the child class) to inherit attributes and methods from another class (the parent class), thereby avoiding redundancy.
   • While abstraction, polymorphism, and encapsulation contribute to the overall OOP paradigm, they do not directly address code reusability to the extent inheritance does.

Verify and Summarize

1. The feature of OOP that best illustrates the concept of code reusability is Inheritance. By using inheritance, we can create new classes with minimal changes to existing code, facilitating the reuse of code across different parts of an application.

Final Answer

b. Inheritance