Java Collections Coding Practice Problems

Java OOPs Coding Practice Problems

Last Updated : 05 Mar, 2025

Object-Oriented Programming (OOP) is a core concept in Java that enables code modularity, reusability, and scalability. This collection of Java OOPs coding practice problems covers essential topics like class design, constructors, encapsulation, inheritance, and abstraction.

Whether you are a beginner or an experienced programmer, these exercises will enhance your understanding of OOP in Java.

OOPs Practice Problems

Object-Oriented Programming (OOP) Overview

Design a Class: Define a class blueprint with attributes (fields) and methods (functions) to encapsulate behavior.
Constructor: A special method used to initialize objects when an instance of a class is created.
Constructor Overloading: Defining multiple constructors within a class to handle different object initialization scenarios.
Addition: Implement addition functionality using classes and methods.
Encapsulation: Restrict direct access to object data by using private variables and public getter/setter methods.
Inheritance: Enable code reuse by allowing a child class to inherit properties and behaviors from a parent class.
Method Overloading: Define multiple methods with the same name but different parameters within a class.
Abstraction: Hide implementation details and expose only essential functionalities using abstract classes and interfaces.

Mastering OOP in Java is essential for writing structured, maintainable, and scalable applications. Practicing these Java OOP coding problems will enhance your understanding of class design, object interactions, and reusability principles, preparing you for real-world development and coding interviews.

Java Collections Coding Practice Problems

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