Exercise:

Create a Java Swing application that allows users to enter student information, course details, and calculate the final GPA. The application will display the entered data in a table format.

Requirements

$1.$ Student Input

$-$ The application should prompt the user to enter the following:

$-$ Student Name

$-$ Student ID

$-$ Number of Courses

$-$ For each course:

$-$ Course Name

$-$ Grade $($out of $100)$

$2.$ GPA Calculation

$-$ The GPA should be calculated based on the following scale:

$-90-100$:$4\mathrm{.}0$

$-80-89$:$3\mathrm{.}0$

$-70-79$:$2\mathrm{.}0$

$-60-69$:$1\mathrm{.}0$

$-$ Below $60$: $0\mathrm{.}0$

$3.$ Display

$-$ Display student information at the top of the window.

$-$ Show a table listing:

$-$ Course Name

$-$ Grade

$-$ GPA Equivalent

$-$ Display the final calculated GPA below the table.

$4.$ User Interface:

$-$ Use Joptionpane for input dialogs.

$-$ Use JTable to display the results.

$5.$ Error Handling:

$-$ Ensure proper validation for numeric inputs $($e$,$g$.,$ grades must be between $0$ and $100,$ and the number of courses must be positive$).$

$-$ Ensure entering non$-$empty values

$-$ Ensure no course duplication.

$-$ Display appropriate error messages using JoptionRane for invalid inputs.

Criteria for Evaluation

$1.$ Functionality and Requirements Fulfillment

$-$ The application should meet all the specified requirements:

$-$ Allows user input for student name, ID$,$ and course details.

$-$ Calculates and displays GPA based on the grade scale.

$-$ Displays the information in a clear format with student details and course data in a table.

$2.$ User Interface and Usability

$-$ The interface should be intuitive and visually organized: appropriately.

$-$ Student information is displayed clearly, with the table showing each course's name, grade, and GPA equivalent.

$-$ Appropriate error messages should be displayed when invalid data is entered.

$3.$ Error Handling and Input Validation

$-$ The program should handle common errors and invalid input cases:

$-$ Ensures that grades are within the $0-100$ range.

$-$ Validates that the number of courses is a positive integer.

$-$ Ensure entering non$-$empty values

$-$ Ensure no course duplication.

$-$ Displays error messages using J$$kRtionRane for invalid inputs.

$4.$ Code Organization and Readability

$-$ Code should be well$-$organized and easy to read:

$-$ Uses appropriate methods to break down functionality, such as separate methods for entering data, calculating GPA, and setting up the GUI.

$-$ Follows naming conventions and includes comments explaining key parts of the code.

$5.$ Event Handling and Execution Flow

$-$ The program should handle button click events accurately:

$-$ Actiondistener is implemented correctly, with a clear process flow from data entry to GPA calculation.

$-$ The program flows logically from one stage to the next, with no unexpected errors or interruptions.