public void save() {
ObservableList<StudentRecord> records = DataSource.getAllMarks(new File(currentFileName));
try {
FileWriter writer = new FileWriter(new File(currentFileName));
for (StudentRecord student : records) {
writer.append(student.getID());
writer.append(",");
writer.append(String.valueOf(student.getAssign()));
writer.append(",");
writer.append(String.valueOf(student.getMidterm()));
writer.append(',');
writer.append(String.valueOf(student.getFinal()));
writer.append(",");
writer.append(student.getGrade());
writer.append("\n");
}
} catch (Exception e) {
e.printStackTrace();
}
}
@Override
public void start(Stage primaryStage) throws Exception {
/* create the menu (for the top of the user interface) */
Menu fileMenu = new Menu("File");
MenuItem newMenuItem = new MenuItem("New", imageFile("images/new.png"));
newMenuItem.setAccelerator(KeyCombination.keyCombination("Ctrl+N"));
fileMenu.getItems().add(newMenuItem);
fileMenu.getItems().add(new SeparatorMenuItem());
fileMenu.getItems().add(new MenuItem("Open...", imageFile("images/open.png")));
fileMenu.getItems().add(new SeparatorMenuItem());
MenuItem saveMenuItem = new MenuItem("Save", imageFile("images/save.png"));
fileMenu.getItems().add(saveMenuItem);
MenuItem saveAsMenuItem = new MenuItem("Save As...", imageFile("images/save_as.png"));
fileMenu.getItems().add(saveAsMenuItem);
fileMenu.getItems().add(new SeparatorMenuItem());
MenuItem exitMenuItem = new MenuItem("Exit", imageFile("images/exit.png"));
fileMenu.getItems().add(exitMenuItem);
exitMenuItem.setAccelerator(KeyCombination.keyCombination("Ctrl+Q"));
exitMenuItem.setOnAction(e -> System.exit(0));
Menu editMenu = new Menu("Edit");
editMenu.getItems().add(new MenuItem("Cut", imageFile("images/cut.png")));
editMenu.getItems().add(new MenuItem("Copy", imageFile("images/copy.png")));
editMenu.getItems().add(new MenuItem("Paste", imageFile("images/paste.png")));
Menu helpMenu = new Menu("Help");
helpMenu.getItems().add(new MenuItem("About...", imageFile("images/about.png")));
helpMenu.getItems().add(new SeparatorMenuItem());
helpMenu.getItems().add(new MenuItem("Help...", imageFile("images/help.png")));
MenuBar menuBar = new MenuBar();
menuBar.getMenus().add(fileMenu);
menuBar.getMenus().add(editMenu);
menuBar.getMenus().add(helpMenu);
primaryStage.setTitle("Lab08");
// grid contains all of the textfeilds, labels , buttons, ect..
GridPane grid = new GridPane();
// the tableview puts all of our data into a exel like format
TableView<StudentRecord> table = new TableView<>();
table.setItems(DataSource.getAllMarks());
table.setEditable(true);
TableColumn<StudentRecord, String> IDColumn = null;
IDColumn = new TableColumn<>("SID");
IDColumn.setMinWidth(100);
// the thing in quotes is what it will search for in the StudentRecords.java (MAKE SURE THERE IS
// A GET FUNCTION FOR THAT VARIBALE)
IDColumn.setCellValueFactory(new PropertyValueFactory<>("ID"));
TableColumn<StudentRecord, Double> AssignmentColumn = null;
AssignmentColumn = new TableColumn<>("Assignment");
AssignmentColumn.setMinWidth(100);
AssignmentColumn.setCellValueFactory(new PropertyValueFactory<>("Assign"));
TableColumn<StudentRecord, Float> MidtermColumn = null;
MidtermColumn = new TableColumn<>("Midterm");
MidtermColumn.setMinWidth(100);
MidtermColumn.setCellValueFactory(new PropertyValueFactory<>("Midterm"));
TableColumn<StudentRecord, Float> FinalColumn = null;
FinalColumn = new TableColumn<>("Final Exam");
FinalColumn.setMinWidth(100);
FinalColumn.setCellValueFactory(new PropertyValueFactory<>("Final"));
TableColumn<StudentRecord, String> GradeColumn = null;
GradeColumn = new TableColumn<>("Letter Grade");
GradeColumn.setMinWidth(100);
GradeColumn.setCellValueFactory(new PropertyValueFactory<>("Grade"));
table.getColumns().add(IDColumn);
table.getColumns().add(AssignmentColumn);
table.getColumns().add(MidtermColumn);
table.getColumns().add(FinalColumn);
table.getColumns().add(GradeColumn);
Label IDLabel = new Label("SID:");
grid.add(IDLabel, 0, 0);
TextField IDField = new TextField();
IDField.setPromptText("SID");
grid.add(IDField, 1, 0);
Label AssignLabel = new Label("Assignments:");
grid.add(AssignLabel, 2, 0);
TextField AssignField = new TextField();
AssignField.setPromptText("Assignment");
grid.add(AssignField, 3, 0);
Label MidLabel = new Label("Midterm:");
grid.add(MidLabel, 0, 1);
TextField midField = new TextField();
midField.setPromptText("Midterm");
grid.add(midField, 1, 1);
Label FinalLabel = new Label("Final:");
grid.add(FinalLabel, 2, 1);
TextField FinalField = new TextField();
FinalField.setPromptText("Final");
grid.add(FinalField, 3, 1);
Button AddButton = new Button("Add");
AddButton.setOnAction(
new EventHandler<ActionEvent>() {
@Override
public void handle(ActionEvent e) {
char Grade;
String SID = IDField.getText();
Float Assignment = Float.parseFloat(AssignField.getText());
Float Midterm = Float.parseFloat(midField.getText());
Float Final = Float.parseFloat(FinalField.getText());
table.getItems().add(new StudentRecord(SID, Assignment, Midterm, Final));
IDField.setText("");
AssignField.setText("");
midField.setText("");
FinalField.setText("");
}
});
grid.add(AddButton, 0, 2);
layout = new BorderPane();
layout.setTop(menuBar);
layout.setCenter(table);
layout.setBottom(grid);
Scene scene = new Scene(layout);
grid.setPadding(new Insets(10, 10, 10, 10));
grid.setVgap(10);
grid.setHgap(10);
primaryStage.setScene(scene);
primaryStage.show();
}
@Override
public void start(Stage primaryStage) throws Exception {
primaryStage.setTitle("JavaFX Demo");
/* create the menu (for the top of the user interface) */
Menu fileMenu = new Menu("File");
MenuItem newMenuItem = new MenuItem("New", imageFile("images/new.png"));
newMenuItem.setAccelerator(KeyCombination.keyCombination("Ctrl+N"));
fileMenu.getItems().add(newMenuItem);
fileMenu.getItems().add(new SeparatorMenuItem());
fileMenu.getItems().add(new MenuItem("Open...", imageFile("images/open.png")));
fileMenu.getItems().add(new SeparatorMenuItem());
fileMenu.getItems().add(new MenuItem("Save", imageFile("images/save.png")));
fileMenu.getItems().add(new MenuItem("Save As...", imageFile("images/save_as.png")));
fileMenu.getItems().add(new SeparatorMenuItem());
MenuItem exitMenuItem = new MenuItem("Exit", imageFile("images/exit.png"));
fileMenu.getItems().add(exitMenuItem);
exitMenuItem.setAccelerator(KeyCombination.keyCombination("Ctrl+Q"));
exitMenuItem.setOnAction(e -> System.exit(0));
Menu editMenu = new Menu("Edit");
editMenu.getItems().add(new MenuItem("Cut", imageFile("images/cut.png")));
editMenu.getItems().add(new MenuItem("Copy", imageFile("images/copy.png")));
editMenu.getItems().add(new MenuItem("Paste", imageFile("images/paste.png")));
Menu helpMenu = new Menu("Help");
helpMenu.getItems().add(new MenuItem("About...", imageFile("images/about.png")));
helpMenu.getItems().add(new SeparatorMenuItem());
helpMenu.getItems().add(new MenuItem("Help...", imageFile("images/help.png")));
MenuBar menuBar = new MenuBar();
menuBar.getMenus().add(fileMenu);
menuBar.getMenus().add(editMenu);
menuBar.getMenus().add(helpMenu);
/* create the table (for the center of the user interface) */
table = new TableView<>();
table.setItems(DataSource.getAllStudents());
table.setEditable(true);
/* create the table's columns */
TableColumn<Student, Integer> sidColumn = null;
sidColumn = new TableColumn<>("SID");
sidColumn.setMinWidth(100);
sidColumn.setCellValueFactory(new PropertyValueFactory<>("sid"));
TableColumn<Student, String> firstNameColumn = null;
firstNameColumn = new TableColumn<>("First Name");
firstNameColumn.setMinWidth(200);
firstNameColumn.setCellValueFactory(new PropertyValueFactory<>("firstName"));
firstNameColumn.setCellFactory(TextFieldTableCell.<Student>forTableColumn());
firstNameColumn.setOnEditCommit(
(CellEditEvent<Student, String> event) -> {
((Student) event.getTableView().getItems().get(event.getTablePosition().getRow()))
.setFirstName(event.getNewValue());
});
TableColumn<Student, String> lastNameColumn = null;
lastNameColumn = new TableColumn<>("Last Name");
lastNameColumn.setMinWidth(200);
lastNameColumn.setCellValueFactory(new PropertyValueFactory<>("lastName"));
lastNameColumn.setCellFactory(TextFieldTableCell.<Student>forTableColumn());
lastNameColumn.setOnEditCommit(
(CellEditEvent<Student, String> event) -> {
((Student) event.getTableView().getItems().get(event.getTablePosition().getRow()))
.setLastName(event.getNewValue());
});
TableColumn<Student, Double> gpaColumn = null;
gpaColumn = new TableColumn<>("GPA");
gpaColumn.setMinWidth(100);
gpaColumn.setCellValueFactory(new PropertyValueFactory<>("gpa"));
table.getColumns().add(sidColumn);
table.getColumns().add(lastNameColumn);
table.getColumns().add(firstNameColumn);
table.getColumns().add(gpaColumn);
/* create an edit form (for the bottom of the user interface) */
GridPane editArea = new GridPane();
editArea.setPadding(new Insets(10, 10, 10, 10));
editArea.setVgap(10);
editArea.setHgap(10);
Label sidLabel = new Label("SID:");
editArea.add(sidLabel, 0, 0);
TextField sidField = new TextField();
sidField.setPromptText("SID");
editArea.add(sidField, 1, 0);
Label fnameLabel = new Label("First name:");
editArea.add(fnameLabel, 0, 1);
TextField fnameField = new TextField();
fnameField.setPromptText("First Name");
editArea.add(fnameField, 1, 1);
Label lnameLabel = new Label("Last name:");
editArea.add(lnameLabel, 0, 2);
TextField lnameField = new TextField();
lnameField.setPromptText("Last Name");
editArea.add(lnameField, 1, 2);
Label gpaLabel = new Label("GPA:");
editArea.add(gpaLabel, 0, 3);
TextField gpaField = new TextField();
gpaField.setPromptText("GPA");
editArea.add(gpaField, 1, 3);
Button addButton = new Button("Add");
addButton.setOnAction(
new EventHandler<ActionEvent>() {
@Override
public void handle(ActionEvent e) {
int sid = Integer.parseInt(sidField.getText());
String firstName = fnameField.getText();
String lastName = lnameField.getText();
double gpa = Double.parseDouble(gpaField.getText());
table.getItems().add(new Student(sid, firstName, lastName, gpa));
sidField.setText("");
fnameField.setText("");
lnameField.setText("");
gpaField.setText("");
}
});
editArea.add(addButton, 1, 4);
/* arrange all components in the main user interface */
layout = new BorderPane();
layout.setTop(menuBar);
layout.setCenter(table);
layout.setBottom(editArea);
Scene scene = new Scene(layout, 600, 600);
primaryStage.setScene(scene);
primaryStage.show();
}