// Demonstrate JComboBox.
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
/*
<applet code="JComboBoxDemo" width=300 height=100>
</applet>
*/
public class JComboBoxDemo extends JApplet {
JLabel jlab;
ImageIcon france, germany, italy, japan;
JComboBox jcb;
String flags[] = { "France", "Germany", "Italy", "Japan" };
public void init() {
try {
SwingUtilities.invokeAndWait(
new Runnable() {
public void run() {
makeGUI();
}
}
);
} catch (Exception exc) {
System.out.println("Can't create because of " + exc);
}
}
private void makeGUI() {
// Change to flow layout.
setLayout(new FlowLayout());
// Instantiate a combo box and add it to the content pane.
jcb = new JComboBox(flags);
add(jcb);
// Handle selections.
jcb.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent ae) {
String s = (String) jcb.getSelectedItem();
jlab.setIcon(new ImageIcon(s + ".gif"));
}
});
// Create a label and add it to the content pane.
jlab = new JLabel(new ImageIcon("france.gif"));
add(jlab);
}
}