The fourth programming project involves writing a program to manage a student database. The interface to the program should be a GUI that looks similar to the following: A combo box should allow the user to select one of the four database actions shown. The database should be implemented as a HashMap, with the ID field as the key and a student record consisting of a name and major as the value. The operation should be performed when the user clicks the Process Request button. If the user attempts to insert a key that is already in the database an error message should be displayed using a JOptionPane message dialog box. If the user attempts to delete, find or update a record that is not in the database, a message should also be displayed. After each successful operation is completed a JOptionPane window should be displayed confirming the success. In the case of a successful Find request, a window should pop up containing the student's ID, name, major and current GPA.
When the user selects the Update request, the following JOptionPane windows should be displayed to gather information about a course that has just been completed: This program must consist of two classes. The first class should define the GUI and handle the database interactions. It should be hand-coded and not generated by a GUI generator. The second class named Student should define the student record. It must have instance variables for the student name, major and two variables that are used to compute the GPA. A variable that contains the total number of credits completed and a second variable that contains the total quality points, which are the numeric value of the grade received in a course time the number of credit hours. It should not contain the student ID. The class should have the following three methods: A constructor that is used when new student records are created. It should accept the name and major as parameters and initialize the fields that are used to compute the GPA to zero. The second method course completed should accept the course grade and credit hours and update the variables used to compute the GPA. It will be called when an Update request is made. The third method should override toString and return a labeled string containing the student name, major and GPA. Be sure that all instance and class variables are declared as private. Also, any exceptions thrown by nonnumeric inputs should be properly handled. Finally, when a student has not yet completed any course, the GPA should be displayed as 4.0. Due Date Mar 5, 2016 11:00 PM Hide Rubrics Rubric Name: Assignment Rubric 20 points (18-20 points) Employs Modularity (including proper use of parameters, use of local variables etc.) most of the time Employs the correct & appropriate use of programming structures (loops, conditionals, classes etc.) most of the time Efficient algorithms used most of the time Excellent use of object-oriented design 17 points (15-17 points) Employs Modularity (including proper use of parameters, use of local variables etc.) some of the time Employs the correct & appropriate use of programming structures (loops, conditionals, classes etc.) some of the time Efficient algorithms used some of the time Good use of object-oriented design 14 points (0-14 points) Rarely employs Modularity (including proper use of parameters, use of local variables etc.)
Rarely employs the correct & appropriate use of programming structures (loops, conditionals, classes etc.) Poorly structured and inefficient algorithms Rarely uses good object-oriented design 40 points (36-40 points) The program fulfills all functionality All requirements were fulfilled Extra effort was apparent 35 points (29-35 points) The program fulfills the most functionality Most requirements were fulfilled 28 points (0-28 points) The program does not fulfill the functionality Few requirements were fulfilled 20 points (18-20 points) Comprehensive test plan 17 points (15-17 points) Good test plan included 14 points (0-14 points) No test plan included 20 points (18-20 points) Excellent comments Comprehensive lessons learned Excellent possible improvements included Excellent approach discussion and references 17 points (15-17 points) Good comments Some lessons learned Some possible improvements included Some approach discussion 14 points (0-14 points) No comments No lessons learned No possible improvements No approach discussion
Get Free Quote!
342 Experts Online