Java ComboBox (JComboBox) - Swing Example

String[] petStrings = { "Bird", "Cat", "Dog", "Rabbit", "Pig" };
JComboBox comboBox = new JComboBox(petStrings);
comboBox.getSelectedItem(); // get select item

Vector Items = new Vector();
Items.add("Bird");
Items.add("Cat");
Items.add("Dog");
Items.add("Rabbit");
Items.add("Pig");
DefaultComboBoxModel model = new DefaultComboBoxModel(Items);
JComboBox comboBox = new JComboBox(model);

package com.java.myapp;

import java.awt.EventQueue;

import javax.swing.JFrame;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;

import javax.swing.JOptionPane;
import javax.swing.JButton;
import javax.swing.JComboBox;

public class MyForm extends JFrame {

	/**
	 * Launch the application.
	 */
	public static void main(String[] args) {
		EventQueue.invokeLater(new Runnable() {
			public void run() {
				MyForm frame = new MyForm();
				frame.setVisible(true);
			}
		});
	}

	/**
	 * Create the frame.
	 */
	public MyForm() {

		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		setBounds(100, 100, 343, 273);
		setTitle("ThaiCreate.Com Java GUI Tutorial");
		getContentPane().setLayout(null);
		
		// Combobox
		String[] petStrings = { "Bird", "Cat", "Dog", "Rabbit", "Pig" };
		final JComboBox comboBox = new JComboBox(petStrings);
		comboBox.setSelectedIndex(4);
		comboBox.setBounds(113, 76, 107, 20);
		getContentPane().add(comboBox);
		
		// Button
		JButton btn = new JButton("Button");
		btn.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent arg0) {
				JOptionPane.showMessageDialog(null,
						"You selected : " +comboBox.getSelectedItem());
			}
		});
		btn.setBounds(126, 123, 81, 23);
		getContentPane().add(btn);	
		
	}
}