![Introduction to Java Programming
• Basic Concepts and Object-Oriented
Programming (OOP)
• Presented by: [Your Name]
• Date: [Presentation Date]](https://image.slidesharecdn.com/javaooppresentation-250505130054-2957df9f/85/Java_OOP_Presentation-pptx-and-digital-twin-based-monitor-1-320.jpg)
Java_OOP_Presentation.pptx and digital twin based monitor
- 1. Introduction to Java Programming • Basic Concepts and Object-Oriented Programming (OOP) • Presented by: [Your Name] • Date: [Presentation Date]
- 2. Overview of Java • What is Java? • - High-level, object-oriented programming language. • - Platform-independent (Write Once, Run Anywhere). • - Widely used in web, mobile, and enterprise applications. • Java Features:
- 3. Basic Java Concepts • Java Syntax: Keywords, Identifiers, Data Types, Variables, Operators. • Control Structures: if-else, switch-case, loops (for, while, do-while). • Functions/Methods: Declaration, return types, parameters. • Example: • public class HelloWorld {
- 4. Java Data Types • Primitive: int, float, double, char, boolean. • Non-Primitive: Arrays, Strings, Classes, Interfaces. • Type Conversion: Implicit and Explicit casting.
- 5. Control Flow in Java • Conditional: if, else if, else, switch. • Loops: for, while, do-while. • Break and Continue statements.
- 6. Introduction to OOP • What is OOP? • - Programming paradigm based on objects. • - Four Pillars: Encapsulation, Abstraction, Inheritance, Polymorphism. • Why Use OOP? • - Code reusability • - Easier maintenance • - Logical structure
- 7. Encapsulation • Real-World Example: Bank Account • - Only methods like deposit/withdraw can access balance. • Code: • class BankAccount { • private double balance; • public void deposit(double amount) { if (amount > 0) balance += amount; }
- 8. Abstraction • Real-World Example: Remote Control • - Users interact with high-level operations without knowing internal mechanics. • Code: • abstract class RemoteControl { • abstract void turnOn(); • abstract void turnOff(); • }
- 9. Inheritance • Real-World Example: Animal Kingdom • - Dog and Cat inherit common behavior from Animal. • Code: • class Animal { void eat() { System.out.println("Eating"); } } • class Dog extends Animal { void bark() { System.out.println("Barking"); } }
- 10. Polymorphism • Real-World Example: Payment Methods • - Different payment types with same method name `pay()`. • Code: • class Payment { void pay() { System.out.println("Processing..."); } } • class CreditCardPayment extends Payment { • void pay() { System.out.println("Credit
- 11. Java Classes and Objects • Real-World Example: Car • - Blueprint to create car objects with model and year. • Code: • class Car { • String model; • int year; • void displayInfo() {
- 12. Java Collections • What are Collections? • - Framework for storing and manipulating groups of data. • Types: • - List (ArrayList, LinkedList) • - Set (HashSet, TreeSet) • - Map (HashMap, TreeMap) • Example:
- 13. Conclusion • Java Recap: • - Versatile, object-oriented language. • - OOP helps with modular, maintainable, reusable code. • - Java has strong community support. • Thank you!