🎨 Java Paint App

A simple yet powerful desktop drawing application built entirely using Java Swing. This project lets users draw, erase, and create basic shapes with customizable colors and brush sizes — a mini version of MS Paint implemented from scratch.

🖌️ Features

✅ Freehand Drawing (Pencil Tool) – Draw smoothly with adjustable brush size
✅ Eraser Tool – Erase parts of the drawing easily
✅ Shape Tools – Draw rectangles, ovals, and straight lines
✅ Color Picker – Choose any color using the system color chooser
✅ Brush Size Control – Change line thickness from 1px up to 20px
✅ Canvas Management – Clear the canvas or resize it dynamically
✅ Save Artwork – Export your drawing as a .png image
✅ Responsive Design – Canvas auto-adjusts when the window is resized
✅ Clean Modern UI – Organized toolbar and control panel layout

🧠 How It Works

The app uses:

• BufferedImage to store and render the drawing
• Graphics2D for drawing lines, shapes, and applying brush strokes
• Mouse events (MouseListener, MouseMotionListener) to track drawing actions
• Swing components for UI: JPanel, JButton, JToggleButton, JComboBox, JColorChooser, and more

🪄 Tools Overview

Tool	Description
🖊️ Pencil	Draw freely with the selected color
🧽 Eraser	Erase by drawing with white color
⬛ Rectangle	Draw outlined rectangles
⚪ Oval	Draw outlined circles/ellipses
📏 Line	Draw straight lines between two points

⚙️ Requirements

• Java 8 or higher
• JDK installed and added to your system PATH
• Works on Windows, macOS, and Linux

🚀 How to Run

1. Clone this repository

    git clone https://github.com/yourusername/java-paint-app.git
   cd java-paint-app
   

2. Compile the Java file

    javac PaintApp.java 

3. Run the application

    java PaintApp 

🧩 Future Enhancements (Ideas)

• 🪣 Fill/Bucket tool
• 🅰️ Text tool
• 🌗 Dark mode
• 🖼️ Image import support
• 💾 Auto-save functionality

👩‍💻 Author

Akanksha Mane 🎓 B.E. Information Technology