Java OOP Practice

This repository contains a collection of Java programs and projects designed to help you practice and master Object-Oriented Programming (OOP) concepts in Java. The codebase is organized into weekly exercises, mini-projects, and topic-focused directories.

Table of Contents

• Overview
• Directory Structure
• Key Projects
• Weekly Exercises
• How to Run
• Requirements
• License

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Overview

This repository is intended for learning and practicing Java programming, with a focus on OOP principles. It includes:

• Weekly exercises covering basic to intermediate Java topics.
• Mini-projects simulating real-world applications (e.g., hotel reservation, library system, supermarket, airline ticketing).
• Example code for arrays, loops, conditionals, and user input handling.

Directory Structure

.idea/                # IDE configuration files
new/                  # Airline ticketing system (App.java, Payment.java)
OOP_hotelRes/         # Hotel reservation system
OOP_lib/              # Library management system
OOP_supermarket/      # Supermarket/cart simulation
Week1/                # Week 1 exercises (basics, arithmetic, input/output)
Week2/                # Week 2 exercises (conditionals, simple logic)
Week3/                # Week 3 exercises (loops, patterns)
Week4/                # Week 4 exercises (arrays, random simulation)
Week5/                # Placeholder for Week 5
Week9/                # Week 9 exercises (Student/Module OOP)
README.md

Key Projects

Airline Ticketing System (new/)

• App.java: Main application for buying plane tickets, showing seating, and managing payments.
• Payment.java: Handles payment details for ticket purchases.

Hotel Reservation System (OOP_hotelRes/)

• Main.java: Classes for Room and Hotel, with room reservation and display functionality.

Library Management System (OOP_lib/)

• Main.java: Classes for Book and borrowing/returning logic.

Supermarket Simulation (OOP_supermarket/)

• Supermarket.java: Classes for Product and Cart, simulating adding products and displaying cart contents.

Weekly Exercises

• Week1: Basic Java programs (arithmetic, temperature conversion, initials, menu, etc.).
• Week2: Conditionals, simple banking, grading, calculator, and games.
• Week3: Loop exercises, pattern printing.
• Week4: Arrays, random simulations, statistics.
• Week9: OOP with Student and Module classes.

How to Run

1. Clone the repository:

   git clone <repository-url>
   cd Java-OOP-Practice

2. Compile and run a specific Java file:

   javac path/to/FileName.java
   java path.to.FileName

   For example, to run the airline ticketing system:

   javac new/App.java new/Payment.java
   java new.App

Requirements

• Java JDK 8 or higher (tested up to JDK 23)
• A Java IDE (e.g., IntelliJ IDEA, VS Code) is recommended for easier navigation.

License

This repository is for educational purposes.

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Note: Some files and features may be in-progress or for demonstration only. Contributions and suggestions are welcome!