Mastering Java Programming: From Beginner to Expert
Object-Oriented Programming (OOP) is a programming paradigm that Java is built upon, and mastering OOP is crucial for becoming a proficient Java developer. At its core, OOP is about organizing code around objects , which represent real-world entities. Java supports the four main principles of OOP: encapsulation, inheritance, polymorphism, and abstraction. Encapsulation is the concept of bundling data (variables) and methods (functions) that operate on the data into a single unit called a class. It hides the internal state of an object and only exposes necessary functionality through public methods, known as getters and setters. This protects the object's state from unauthorized access and modification, promoting data integrity. Inheritance allows a class (subclass) to inherit properties and behaviors from another class (superclass). This promotes code reuse, allowing subclasses to add or modify the functionality they inherit, while still maintaining the common behaviors of the ...
