Java Basic - Learning Project

A comprehensive Java learning repository covering fundamental to intermediate concepts with practical examples and exercises.

📚 Project Overview

This repository contains organized Java code examples and exercises for learning Java programming from basic concepts to object-oriented programming, GUI development, and collections.

🗂️ Project Structure

java-basic/
├── src/
│   ├── array/              # Array operations and exercises
│   ├── awt/                # AWT (Abstract Window Toolkit) examples
│   ├── basic/              # Basic Java syntax and operations
│   ├── collection/         # Java Collections Framework examples
│   ├── control_statement/  # If-else, switch-case, ternary operators
│   ├── form/               # GUI form examples
│   │   ├── AWT/           # AWT form implementations
│   │   ├── MarketForm/    # Market management forms
│   │   └── StaffForm/     # Staff management forms
│   ├── function/          # Function/method examples
│   ├── loop/              # Loop structures (for, while, do-while, enhanced for)
│   ├── oop/               # Object-Oriented Programming concepts
│   │   ├── basic/         # Classes, objects, constructors
│   │   ├── HashTable/     # HashTable implementations
│   │   ├── Inheritances/  # Inheritance examples
│   │   ├── Polymorphism/  # Polymorphism demonstrations
│   │   └── overide/       # Method overriding examples
│   ├── swing/             # Swing GUI components
│   └── test_mouse/        # GUI interaction examples
└── Main.java              # Entry point

📖 Topics Covered

1. Basic Concepts

• Variables and data types
• Operators (arithmetic, logical, relational)
• Input/Output operations
• Basic syntax and structure

2. Control Statements

• If-else statements
• Switch-case statements
• Ternary operators
• Conditional logic

3. Loops

• For loops
• While loops
• Do-while loops
• Enhanced for loops (for-each)
• Nested loops

4. Arrays

• One-dimensional arrays
• Two-dimensional arrays
• Array operations and manipulations
• Array exercises

5. Functions/Methods

• Method declaration and calling
• Parameters and return types
• Method overloading
• Block functions
• Date functions

6. Object-Oriented Programming (OOP)

• Classes and Objects
• Constructors
• Encapsulation
• Inheritance (Hierarchical, Multilevel, Multiple)
• Polymorphism
• Method Overriding

7. Collections Framework

• HashTable
• ArrayList
• Vector
• Collection operations

8. GUI Development

• AWT (Abstract Window Toolkit)
• Swing components
• Event handling
• Forms and layouts
• Login forms
• Data management interfaces

🚀 Getting Started

Prerequisites

• Java Development Kit (JDK) 8 or higher
• Any Java IDE (IntelliJ IDEA, Eclipse, NetBeans, or VS Code with Java extensions)

Running the Examples

1. Clone or download the repository

   git clone https://github.com/petsereypanha/basic-java.git
   cd java-basic

2. Compile a Java file

   javac src/basic/Firstprogram.java

3. Run the compiled class

   java -cp src basic.Firstprogram

4. Or use your IDE

   • Open the project in your IDE
   • Navigate to any Java file with a main method
   • Right-click and select "Run"

💡 Example Programs

Basic Arithmetic Operations

// Located in: src/basic/Firstprogram.java
// Demonstrates basic arithmetic operations

Student Grade System

// Located in: src/oop/basic/class_object.java
// Calculates student grades based on scores

Array Operations

// Located in: src/array/
// Various array manipulation examples

GUI Applications

// Located in: src/form/AWT/
// Login forms, person lists, and data management

📝 Key Features

• ✅ Well-organized code structure
• ✅ Practical exercises and examples
• ✅ Progressive difficulty levels
• ✅ Real-world application examples
• ✅ GUI development samples
• ✅ Comprehensive OOP demonstrations

🎯 Learning Path

1. Start with src/basic/ - Learn fundamental Java syntax
2. Move to src/control_statement/ - Understand program flow
3. Practice with src/loop/ - Master iteration
4. Explore src/array/ - Work with data structures
5. Study src/function/ - Learn modular programming
6. Deep dive into src/oop/ - Master object-oriented concepts
7. Experiment with src/collection/ - Use Java collections
8. Build GUIs with src/awt/, src/swing/, and src/form/ - Create user interfaces

🛠️ IDE Setup

IntelliJ IDEA

1. Open IntelliJ IDEA
2. Select "Open" and choose the java-basic folder
3. Wait for the project to index
4. Right-click any file with a main method and select "Run"

Visual Studio Code

1. Install the "Extension Pack for Java" from the marketplace
2. Open the java-basic folder
3. Use the Run button or press F5 to execute files

📚 Additional Resources

• Official Java Documentation
• Java Tutorials by Oracle
• Java API Documentation

🤝 Contributing

This is a personal learning project. Feel free to fork and create your own versions for learning purposes.

📄 License

This project is open source and available for educational purposes.

👤 Author

Serey Panha

• GitHub: @petsereypanha

📅 Last Updated

October 2025

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Happy Coding! 🚀