Object-Oriented Programming (OOP) is a programming paradigm that organizes software design around data, or objects, rather than functions and logic. An object is an instance of a class, which acts as a blueprint that defines the structure and behavior (attributes and methods) of its objects. OOP focuses on four main principles: encapsulation, inheritance, polymorphism, and abstraction. Encapsulation means bundling data and methods that operate on that data within a single unit, or class, while restricting direct access to some of the object's components, thus enhancing security and maintainability. Inheritance allows a class (called a child or subclass) to inherit properties and behaviors from another class (called a parent or superclass), promoting code reusability. Polymorphism enables objects of different classes to be treated as objects of a common superclass, typically by redefining methods to behave differently in each subclass, which enhances flexibility and scalability. Abstraction involves hiding complex internal details and showing only the necessary features of an object, simplifying the interface and usage. Overall, OOP helps in creating modular, reusable, and easier-to-maintain code, making it a widely used paradigm in modern software development.

1. OOP Programming
Java Swing

2. ▪ Java Swing, a graphical user interface (GUI) toolkit, has been a cornerstone of Java
development for decades.
▪ Java Swing provides a comprehensive set of components for building GUIs,
including buttons, text fields, panels, and more.
▪ These components are highly customizable, allowing developers to create visually
appealing and user-friendly interfaces.
Java Swing

5. ▪ Lightweight Components: Unlike AWT, which relies on the operating system's native components, Swing
components are written entirely in Java, making them platform-independent.
▪ Rich Set of Components: Includes components like buttons, labels, text fields, tables, trees, lists, tabbed panes,
sliders, and more.
▪ Pluggable Look-and-Feel: Allows developers to customize the appearance of applications or use standard
themes.
▪ Event-Driven Programming: Uses event listeners to handle user interactions, enabling robust UI handling.
▪ MVC Architecture: Implements the Model-View-Controller architecture for separating the data, UI, and logic
layers.
▪ Customizable Components: Developers can create custom components or extend existing ones.
Key Features of Java Swing

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