Java OOPs Coding Practice Problems Last Updated : 05 Mar, 2025 Suggest changes Share Like Article Like Report 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 ProblemsDesign a ClassConstructorConstructor OverloadingAdditionEncapsulationInheritanceMethod OverloadingAbstractionObject-Oriented Programming (OOP) OverviewDesign 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. Advertise with us Next Article Java OOPs Coding Practice Problems S swetadash2000 Follow Similar Reads Java Methods Coding Practice Problems Methods in Java help in structuring code by breaking it into reusable blocks. They improve readability, maintainability, and modularity in programming. This collection of Java method coding practice problems covers functions with return values, functions with arguments, and functions without argumen 1 min read Java Arrays Coding Practice Problems Arrays are a fundamental data structure in Java programming, enabling efficient storage, manipulation, and retrieval of elements. This collection of Java array practice problems covers essential operations, including array traversal, sorting, searching, matrix manipulations, and element-wise calcula 2 min read Java Strings Coding Practice Problems Strings are a fundamental part of Java programming, used for handling and manipulating textual data efficiently. This collection of Java string practice problems covers key operations such as finding string length, slicing, case conversion, palindrome checking, anagram detection, and pattern matchin 2 min read Java Fundamentals Coding Practice Problems Understanding Java fundamentals is the first step to becoming a proficient Java programmer. This collection of Java basic coding practice problems covers essential topics such as input/output operations, arithmetic and logical operators, type conversion, conditional statements, loops, and more. Thes 1 min read Best Practices to Handle Exceptions in Java Exception Handling is a critical aspect of Java programming, and following best practices for exception handling becomes even more important at the industry level, where software is expected to be highly reliable, maintainable, and scalable. In this article, we will discuss some of the best practice 7 min read Article Tags : Java Practice Questions Practice Tags : Java Like