XML Data Transformer in Java

This project is a step-by-step Java application that transforms XML data using AI-guided development and commits after each significant milestone. The application progresses from simple data reading to robust, validated user-interactive JSON output, and finally transitions to a SAX parser for XML.

---

📁 Project Structure

Each step of development is committed separately. You can follow the evolution of the application through the commit history.

---

🚀 Features

✅ Step 1: Read and Print XML Fields

• Reads an uploaded XML file.
• Prints all field values to the console.

✅ Step 2: Filter by User-Selected Fields

• Prompts the user to select fields to view.
• Only prints the selected fields.

✅ Step 3: Output in JSON Format

• Transforms selected fields to JSON format.
• Outputs the result to the console.

✅ Step 4: Add Input Validation

• Handles invalid or unexpected user input gracefully.
• Prevents crashes and provides helpful error messages.

✅ Step 5: Use SAX XML Parser

• Switches from traditional DOM parsing to SAX.
• Improves performance for large XML files.

---

🧰 Technologies Used

• Java
• XML & SAX Parser
• JSON (via org.json or similar)
• AI-assisted development (for architecture & logic)
• Git for version control