// This example is from the book _Java AWT Reference_ by John Zukowski.
// Written by John Zukowski. Copyright (c) 1997 O'Reilly & Associates.
// You may study, use, modify, and distribute this example for any purpose.
// This example is provided WITHOUT WARRANTY either expressed or
import java.awt.*;
import java.applet.Applet;
public class checkboxes extends Applet {
Checkbox cb;
public void init () {
String []fonts;
fonts = Toolkit.getDefaultToolkit().getFontList();
add (cb = new Checkbox (fonts[0]));
CheckboxGroup cbg = new CheckboxGroup();
Panel p = new Panel();
p.setLayout (new GridLayout (0,1));
for (int i = 1; i < fonts.length; i++) {
p.add (new Checkbox (fonts[i], cbg, false));
}
add (p);
}
public boolean action (Event e, Object o) {
if (e.target == cb) {
if ("true".equals(o.toString()))
cb.setLabel ("True");
else
cb.setLabel ("False");
}
return false;
}
}
|