import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JComboBox;
import javax.swing.JFrame;
public class SelectingComboSample {
public static void main(String args[]) {
String labels[] = { "A", "B", "C", "D", "E", "F" };
JFrame frame = new JFrame("Selecting JComboBox");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JComboBox comboBox = new JComboBox(labels);
frame.add(comboBox, BorderLayout.SOUTH);
JComboBox.KeySelectionManager manager =
new JComboBox.KeySelectionManager() {
public int selectionForKey(char aKey, ComboBoxModel aModel) {
System.out.println(aKey);
return -1;
}
};
comboBox.setKeySelectionManager(manager);
frame.setSize(400, 200);
frame.setVisible(true);
}
}