Lab-Database Connectivity
OBJECTIVES
• Programmatic access to a MySQL database to add and display records
PROBLEM: Student Management System
A teacher needs the ability to store and retrieve student data. This includes
• student name;
• three test scores;
• average; and
• letter grade.
FUNCTIONAL REQUIREMENTS
You can code the GUI by hand or use NetBeans GUI builder interface.
Create a GUI which allows for input and display of student data.
It should include buttons to save a record, display all records.
Create a database and table to store student name andthree test scores. (Note that average and grade are calculated by app.)
Student class
Create a Student class to manage the student data. It should have private instance variables of
• student name; and
• three test scores.
The class must have the following methods.
• A default and parameterized constructor
• Sets/gets for all instance variables
• A get method to calculate and return the average
• A get method to calculate and return the letter grade
• toString to display the name of the student
StudentDB class
Create a StudentDB class that is used to create a connection and interface with the database.
This class should have two methods.
• getAll-reads data from database, returns data in an arraylist of student objects
• add-writes a record to the database
GUI class
Insert button will take the info from the GUI (student name and three test scores) and insert a record into the table. Input should be cleared from the textboxes.
Display buttonwill read the data from the database and creates a report in Console window, sample format below.
Name Test1 Test2 Test3 Avg Grade
Bruce Wayne 90 95 98 94.3 A
Clark Kent 65 70 90 75.0 C