OOPS

Object-oriented programming (OOP) helps you organize code around objects that hold data and define behaviour. This playlist uses Java to explain how classes are created, how objects interact, and how these ideas help you write programs that are easier to understand and extend.

The syllabus covers 6 modules with 20 lessons, 13 practice exercises, and 18 quizzes. You will begin with Java basics and classes, then explore the core principles of OOP, relationships between objects, and supporting Java features. Lessons introduce each concept, while quizzes and practice help you check and apply your understanding.

What You Will Learn

Start with classes, objects, attributes, methods, and constructors. Build your understanding of encapsulation, inheritance, polymorphism, and abstraction, then learn how access modifiers, interfaces, the static keyword, and inner classes work.

You will also explore association, aggregation, and composition to understand relationships between objects. Further lessons cover object cloning, exception handling, generics, file handling, design principles, and the object lifecycle.

Understand What Happens in Your Code

Learning OOP means understanding what happens when you create an object, call a method, or extend a class. You need to know which data belongs to an individual object, which members are shared by a class, and how access rules affect the way your code can be used.

Connect these ideas to practical choices: how to protect an object's state, when to use inheritance or composition, and how an abstract class differs from an interface. Learn to explain related concepts such as overloading and overriding through code examples, so you can support your answers when an interviewer asks how or why something works.

Learn, Check Your Understanding, and Apply

• Create classes and objects with attributes, methods, and constructors.
• Use encapsulation and access modifiers to control how data is accessed and changed.
• Practise inheritance, polymorphism, abstraction, and interfaces.
• Work with static members, inner classes, composition, and object cloning.
• Review exception handling, generics, file handling, design principles, and object lifecycle concepts through quizzes.

Who Is This Playlist For?

This playlist is suitable for beginners learning OOP, college students preparing for placements, and programmers strengthening their Java fundamentals for technical interviews. No previous OOP knowledge is required. The syllabus begins with Java basics, though familiarity with variables, conditions, loops, and functions will help you follow along.

Build Your Foundation for OOPs and Java Interviews

By the end, you should be able to explain object-oriented programming concepts with Java examples and reason through questions about classes, constructors, inheritance, polymorphism, and interfaces. For OOPs interview preparation, practise explaining how your code behaves and why you chose a particular approach. This foundation helps you answer conceptual and code-based Java interview questions during campus placements and technical interviews.