Basic Text Components - The Definitive Guide to Java Swing - page 524

JButton loadButton = new JButton (loadAction);
panel.add(loadButton);
Action saveAction = new AbstractAction() {
{
putValue(Action.NAME, "Save");
}
public void actionPerformed(ActionEvent e) {
doSaveCommand(textField, filename);
}
};
JButton saveButton = new JButton (saveAction);
panel.add(saveButton);
Action clearAction = new AbstractAction() {
{
putValue(Action.NAME, "Clear");
}
public void actionPerformed(ActionEvent e) {
textField.setText("");
}
};
JButton clearButton = new JButton (clearAction);
panel.add(clearButton);
frame.add(panel, BorderLayout.SOUTH);
frame.setSize(250, 150);
frame.setVisible(true);
}
};
EventQueue.invokeLater(runner);
}
public static void doSaveCommand(JTextComponent textComponent,
String filename) {
FileWriter writer = null;
try {
writer = new FileWriter(filename);
textComponent.write(writer);
} catch (IOException exception) {
System.err.println("Save oops");
exception.printStackTrace();
} finally {
if (writer != null) {
try {
writer.close();