// TextFieldTest.java
// Demonstrating the JTextField class.

// Java core packages
import java.awt.*;
import java.awt.event.*;

// Java extension packages
import javax.swing.*;

public class TextFieldTest extends JFrame {
	private static final long serialVersionUID = -819072448649618326L;
	private JTextField textField1, textField2, textField3;
	private JPasswordField passwordField;

	// set up GUI
	public TextFieldTest() {
		super("Testing JTextField and JPasswordField");

		Container container = getContentPane();
		container.setLayout(new FlowLayout());

		// construct textfield with default sizing
		textField1 = new JTextField(10);
		container.add(textField1);

		// construct textfield with default text
		textField2 = new JTextField("Enter text here");
		container.add(textField2);

		// construct textfield with default text and
		// 20 visible elements and can't be modified
		textField3 = new JTextField("Uneditable text field", 20);
		textField3.setEditable(false);
		container.add(textField3);

		// construct textfield with default text
		passwordField = new JPasswordField("Hidden text");
		container.add(passwordField);

		// register event handlers
		TextFieldHandler handler = new TextFieldHandler();
		textField1.addActionListener(handler);
		textField2.addActionListener(handler);
		textField3.addActionListener(handler);
		passwordField.addActionListener(handler);

		setSize(325, 100);
		setVisible(true);
	}

	// execute application
	public static void main(String args[]) {
		TextFieldTest application = new TextFieldTest();

		application.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
	}

	// private inner class for event handling
	private class TextFieldHandler implements ActionListener {

		// process text field events
		public void actionPerformed(ActionEvent event) {
			String string = "";

			// user pressed Enter in JTextField textField1
			if (event.getSource() == textField1)
				string = "textField1: " + event.getActionCommand();

			// user pressed Enter in JTextField textField2
			else if (event.getSource() == textField2)
				string = "textField2: " + event.getActionCommand();

			// user pressed Enter in JTextField textField3
			else if (event.getSource() == textField3)
				string = "textField3: " + event.getActionCommand();

			// user pressed Enter in JTextField passwordField
			else if (event.getSource() == passwordField) {
				@SuppressWarnings("unused")
				JPasswordField pwd = (JPasswordField) event.getSource();
				string = "passwordField: "
						+ new String(passwordField.getPassword());
			}

			JOptionPane.showMessageDialog(null, string);
		}

	} // end private inner class TextFieldHandler

} // end class TextFieldTest

/*******************************************************************************
 * (C) Copyright 2002 by Deitel & Associates, Inc. and Prentice Hall. * All
 * Rights Reserved. * * DISCLAIMER: The authors and publisher of this book have
 * used their * best efforts in preparing the book. These efforts include the *
 * development, research, and testing of the theories and programs * to
 * determine their effectiveness. The authors and publisher make * no warranty
 * of any kind, expressed or implied, with regard to these * programs or to the
 * documentation contained in these books. The authors * and publisher shall not
 * be liable in any event for incidental or * consequential damages in
 * connection with, or arising out of, the * furnishing, performance, or use of
 * these programs. *
 ******************************************************************************/