Swing/AWT/SWT :: ComboBox For 50 States Using Array?

This is what I need to create:This project focuses on demonstrating your understanding of GUI and event programming. Before attempting this project, be sure you have completed all of the reading assignments listed in the syllabus to date, participated in the weekly conferences, and thoroughly understand the examples throughout the chapters.

Enhance the form you created in homework 3 to add a JCombobox to select the user’s State of residence, and a group of JRadio buttons to indicate the user's gender. Once the user clicks on the JButton (created in homework 3) the application will display all of the user’s information in the JTextearea in a format similar to the following:

Name:
Age:
Gender:
Age Group:
State of Residence:

This is my code so far. I am having trouble with trying to select a state from my comboBox. My box prints out on the screen fine, but it will not allow me to select a state and print out a state. I was able to get the event listener to work for my radio buttons ok. But I am stuck on the comboBox.

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class NameAge extends JFrame {
//Create text fields and labels
private final JTextField firstName = new JTextField(15);

[code]....