Java The Complete Reference, Seventh Edition

add(name);

add(passp);

add(pass);

// register to receive action events

name.addActionListener(this);

pass.addActionListener(this);

}

// User pressed Enter.

public void actionPerformed(ActionEvent ae) {

repaint();

}

public void paint(Graphics g) {

g.drawString("Name: " + name.getText(), 6, 60);

g.drawString("Selected text in name: "

+ name.getSelectedText(), 6, 80);

g.drawString("Password: " + pass.getText(), 6, 100);

}

}

Sample output from theTextFieldDemoapplet is shown in Figure 24-7.

Using a TextArea

Sometimes a single line of text input is not enough for a given task. To handle these situations,

the AWT includes a simple multiline editor calledTextArea. Following are the constructors

forTextArea:

TextArea( ) throws HeadlessException

TextArea(intnumLines, intnumChars) throws HeadlessException

TextArea(Stringstr) throws HeadlessException

TextArea(Stringstr, intnumLines, intnumChars) throws HeadlessException

TextArea(Stringstr, intnumLines, intnumChars, intsBars) throws HeadlessException

Chapter 24: Using AWT Controls, Layout Managers, and Menus 721

FIGURE 24-7 Sample output from theTextFieldDemoapplet