Advanced Text Capabilities - The Definitive Guide to Java Swing - page 578

The same set of 53 actions is available for all text components. JTextField ,
JFormattedTextField , and JPasswordField have one extra action, called notify-field-accept ,
used for detecting when the Enter key is pressed while in the text component. The
JFormattedTextField has a second extra action, reset-field-edit , for when the contents don't
validate against the provided format mask. JTextPane adds its own set of about 20 more actions
for dealing with multiple-attributed text.
Listing 16-1 shows the source used to generate Figure 16-1. The RadioButtonUtils class
was created in Chapter 5.
Listing 16-1. Listing Text Component Actions
import javax.swing.*;
import javax.swing.text.*;
import java.awt.*;
import java.awt.event.*;
import java.io.*;
import java.util.*;
public class ListActions {
public static void main(String args[]) {
Runnable runner = new Runnable() {
public void run() {
JFrame frame = new JFrame("TextAction List");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
String components[] = {
"JTextField", "JFormattedTextField", "JPasswordField",
"JTextArea", "JTextPane", "JEditorPane"};
final JTextArea textArea = new JTextArea();
textArea.setEditable(false);
JScrollPane scrollPane = new JScrollPane(textArea);
frame.add(scrollPane, BorderLayout.CENTER);
ActionListener actionListener = new ActionListener() {
public void actionPerformed(ActionEvent actionEvent) {
// Determine which component selected
String command = actionEvent.getActionCommand();
JTextComponent component = null;
if (command.equals("JTextField")) {
component = new JTextField();
} else if (command.equals("JFormattedTextField")) {
component = new JFormattedTextField();
} else if (command.equals("JPasswordField")) {
component = new JPasswordField();