Problem Statement: You Are Tasked With Writing A Simple GUI

Problem Statementyou Are Tasked With Writing A Simple Gui That Loads

You are tasked with creating a simple graphical user interface (GUI) application that connects to a local MySQL database using the JDBC driver. The application must load app store information from the database and provide functionality to filter this data by minimum rating values of 2, 3, or 4. Additionally, users should be able to view all applications by clearing any applied filters. The app's data should be loaded into memory using a dedicated class that stores each application's relevant details.

The application should be implemented with a focus on code quality and correct usage of programming concepts, including Object-Oriented Programming (OOP). Proper implementation of JDBC for connecting and retrieving data from the database is essential. The user interface should be built with JavaFX for a modern and responsive design. Supporting logic such as control structures, data handling, and filtering should be well-structured and efficient. The program must run correctly and produce the expected results.

Key requirements include:

• Filter applications based on a minimum rating of 2, 3, or 4
• Allow viewing all applications by clearing filters
• Load app data into memory with a dedicated class encapsulating each app's information
• Use JDBC MySQL Driver for database communication
• Develop the GUI with JavaFX

Paper For Above instruction

Creating a GUI application that interacts with a local MySQL database involves integrating several core programming concepts, including database connectivity via JDBC, object-oriented design, and modern GUI development with JavaFX. The goal is to develop a user-friendly application that displays application data from an app store, allows filtering based on user-selected ratings, and adheres to high standards of code quality and functionality.

The design begins with establishing a robust data layer. A dedicated class, often called AppData, will be responsible for storing individual application details such as app name, developer, rating, category, and other relevant attributes. This class encapsulates the data and provides getter and setter methods for each attribute, following OOP principles to promote modularity and maintainability.

Next, the application must establish a connection to the MySQL database using JDBC. This process involves loading the JDBC driver and creating a connection object to interact with the database. The SQL script provided ensures the database schema is correctly structured. Using SQL queries, the application retrieves data and constructs AppData objects, adding them to a collection, such as an ArrayList, stored in memory. This approach minimizes database access during filtering, thus improving performance and user experience.

The GUI layer is built with JavaFX, offering a modern, flexible, and responsive interface. The main window includes controls such as ComboBox or RadioButtons for selecting the minimum rating filter (2, 3, 4), a Button to clear filters and display all data, and a TableView to present the application list. JavaFX's TableView widget allows for dynamic display and updating of app data, supporting sorting, filtering, and selection features.

Filtering functionality is implemented through event handlers attached to the filter controls. When a user selects a rating filter, the program processes the in-memory list of AppData objects, filtering out entries below the selected threshold. This filtered list is then displayed in the TableView. Clearing the filter reloads the entire dataset.

Throughout development, emphasis is placed on clean code and effective use of Java features. Proper exception handling ensures the application remains responsive and provides meaningful feedback on connection errors or data issues. The use of OOP principles promotes code reuse and ease of maintenance, while the separation of concerns between database access, data storage, and user interface enhances the program's overall quality.

In conclusion, this application combines database connectivity, object-oriented programming, and GUI design to deliver a functional and intuitive interface for exploring app store data. By adhering to best practices in code structure, using JavaFX for frontend, and ensuring proper JDBC implementation, the project exemplifies an integrated approach to desktop application development with Java.

References

• Oracle. (2023). JDBC Documentation. https://docs.oracle.com/javase/8/docs/technotes/guides/jdbc/
• JavaFX Documentation. (2023). https://openjfx.io/
• MySQL. (2023). MySQL Connector/J Driver Documentation. https://dev.mysql.com/doc/connector-j/en/
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