Understanding OOPS

Object-Oriented Programming is one of the core foundations of Java. This section explains important OOP concepts such as classes, objects, encapsulation, inheritance, polymorphism, and abstraction. You’ll learn how these concepts help organize code into reusable and maintainable components. The section also covers interfaces, abstract classes, method overriding, and method overloading. Understanding OOP is essential for designing clean Java applications and working with frameworks such as Spring.