Swing Java Tutorial

import javax.swing.JOptionPane;
public class InputDialogWithDropdownListbox {
  public static void main(String[] a) {
    String[] choices = { "A", "B", "C", "D", "E", "F" };
    String input = (String) JOptionPane.showInputDialog(null, "Choose now...",
        "The Choice of a Lifetime", JOptionPane.QUESTION_MESSAGE, null, // Use
                                                                        // default
                                                                        // icon
        choices, // Array of choices
        choices[1]); // Initial choice
    System.out.println(input);
  }
}