A Java and Swing Expression Tree Visualizer project developed as part of the Data Structures and Algorithms (DSA) .
This standalone desktop application demonstrates the construction and visualization of expression trees — an essential concept in compiler design and data structures.
The Expression Tree Visualizer allows users to:
- Input an infix expression (e.g.,
(A+B)*C). - Convert it into postfix form automatically.
- Build and display the corresponding expression tree structure.
- Visualize the traversals — Inorder, Preorder, and Postorder.
- Understand how operators and operands are arranged in hierarchical form.
| Component | Technology |
|---|---|
| Language | Java (JDK 17 or above recommended) |
| GUI Framework | Java Swing |
| Database (optional) | MySQL (via JDBC) |
| IDE Used | IntelliJ IDEA / VS Code / NetBeans / Eclipse |
| Version Control | Git & GitHub |
✅ Infix to Postfix Expression Conversion
✅ Expression Tree Construction
✅ Graphical Tree Visualization using JavaFX
✅ Traversal Operations (Inorder, Preorder, Postorder)
✅ Clear Tree & Reset Options
✅ Optional: Save user expressions in a database using JDBC
Dsa_project/ │ ├── src/ │ ├── Main.java │ ├── ExpressionTree.java │ ├── Node.java │ ├── ExpressionConverter.java │ └── TreeVisualizer.java │ ├── assets/ │ └── icons, images (if any) │ ├── database/ │ └── db_connection.sql (optional) │ └── README.md
yaml Copy code
1. **Clone or download** this repository
```bash
git clone https://github.com/richapatel28/ExpressionTreeVisualizer.git
2. Open the project in your preferred IDE (like VS Code or IntelliJ IDEA).
3. Run the Main.java file.
🧠 DSA Concepts Covered :
Stack-based expression conversion (Infix → Postfix) Binary Tree construction Tree Traversals (Inorder, Preorder, Postorder) Recursion Graphical representation of data structures
🎯 Learning Outcome :
This project strengthens the understanding of: Data structure implementation in real applications. Visualizing how compilers interpret mathematical expressions. Integrating frontend (JavaSwing) with backend logic (Java + DSA).