A desktop calorie and nutrition tracking application. Built to practice Object-Oriented Programming (OOP) in Java, modular GUI construction using JavaFX, database integration with MySQL via JDBC, and clean architectural patterns.
- Frontend UI: JavaFX styled using a custom external CSS stylesheet for modern dark/vibrant aesthetics.
- Database Engine: MySQL database accessed using JDBC (Java Database Connectivity) with prepared statements to prevent SQL injections.
- Architectural Pattern: DAO (Data Access Object) Pattern separating database queries (e.g. CRUD user profiles, foods, and logs) from UI controllers.
- Date-Based Meal Tracking — Log meal data across Breakfast, Lunch, Dinner, and Snacks for any calendar day.
- Portion Conversion Engine — Add entries using grams, cups, or pieces with real-time calorie math.
- Target Calorie Calculator — Uses the Mifflin-St Jeor equation to estimate daily targets based on user weight, height, age, gender, and physical activity level.
- Real-time Preview UI — Calorie counts dynamically update as the user types portion size inputs.
- MySQL State Persistence — Ensures user profiles, custom foods list, and daily meal journals are stored securely across app restarts.
| Home Dashboard | Profile & Goals Setup |
|---|---|
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| Daily Tracker | Daily Summary |
|---|---|
 |
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nutritrack/
├── src/
│ ├── model/ # Pure Data Models (User, FoodItem, Meal)
│ ├── dao/ # Data Access Objects (UserDAO, FoodItemDAO, MealDAO)
│ ├── util/ # Common Helpers (DatabaseUtil, CalorieCalculator)
│ ├── view/ # JavaFX Layout classes and style.css
│ └── Main.java # CLI / Console demonstration entry point
├── sql/
│ └── schema.sql # Database schema creation and mock seed data
├── lib/ # JavaFX SDK binaries & MySQL JDBC Connector
├── images/ # UI Screenshots and walkthrough video
├── LICENSE
└── README.md
- Decoupled Database Logic: Implemented the DAO pattern to completely segregate raw SQL queries from JavaFX event listeners, making the code easier to maintain and test.
- Database Lifecycle Management: Mastered JDBC connection lifecycles, using Java’s try-with-resources blocks to automate closing connections, statements, and result sets, preventing connection pool leaks.
- Declarative UI Styling: Styled JavaFX layouts using external CSS selectors rather than in-line Java style setters to keep UI code clean and layout code consistent.
- Java Development Kit (JDK) 17 or higher.
- A running instance of MySQL database (defaulting to port
3307). - JavaFX SDK & MySQL Connector JAR inside the
/libfolder.
-
Initialize Database Schema: Import the SQL schema to create database tables and load default food logs.
# Windows Powershell Get-Content sql/schema.sql -Raw | mysql -u root --port=3307
-
Compile Java Source Files: Compile the java source tree with the module path configuration for JavaFX.
javac --module-path "lib\javafx-sdk-23.0.2\lib" --add-modules javafx.controls -cp "src;lib\mysql-connector-j-8.4.0.jar" src\Main.java src\model\*.java src\view\*.java src\dao\*.java src\util\*.java
-
Launch the JavaFX Dashboard:
java --module-path "lib\javafx-sdk-23.0.2\lib" --add-modules javafx.controls -cp "src;lib\mysql-connector-j-8.4.0.jar" view.Dashboard
- Add interactive data visualization charts to track weekly/monthly calorie history.
- Implement a Custom Recipes builder allowing combinations of multiple standard ingredients.
- Add functionality to export weekly nutritional summaries to CSV/PDF reports.
Licensed under the MIT License — feel free to modify, study, or redistribute this project.
- LinkedIn: Adamya Vats
- GitHub: @adamyacoder-spec