Java-Buddy

package javamyframe;
import java.awt.BorderLayout;
import java.awt.Label;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.BoxLayout;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JList;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.SwingUtilities;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;
/**
 * @web http://java-buddy.blogspot.com/
 */
public class JavaMyFrame extends JFrame
 implements ActionListener, ListSelectionListener{
 JList jList1;
 JTextField textField2;
 Label labelInfo;
 JButton buttonAccept;
 
 static final String DayOfWeek[] = {
 "Monday",
 "Tuesday",
 "Wednesday",
 "Thursday",
 "Friday"};
 public static void main(String[] args) {
 
 SwingUtilities.invokeLater(new Runnable() {
 public void run() {
 createAndShowGUI();
 }
 });
 }
 private static void createAndShowGUI() {
 JavaMyFrame myFrame = new JavaMyFrame();
 myFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
 
 myFrame.prepareUI();
 myFrame.pack();
 myFrame.setVisible(true);
 }
 
 private void prepareUI(){
 
 JPanel vPanel = new JPanel();
 vPanel.setLayout(new BoxLayout(vPanel, BoxLayout.Y_AXIS));
 JPanel hPanel = new JPanel();
 hPanel.setLayout(new BoxLayout(hPanel, BoxLayout.X_AXIS));
 
 jList1 = new JList(DayOfWeek);
 jList1.addListSelectionListener(this);
 textField2 = new JTextField(20);
 labelInfo = new Label();
 vPanel.add(textField2);
 vPanel.add(labelInfo);
 
 hPanel.add(jList1);
 hPanel.add(vPanel);
 
 buttonAccept = new JButton("Accept");
 buttonAccept.addActionListener(this);
 
 getContentPane().add(hPanel, BorderLayout.CENTER);
 getContentPane().add(buttonAccept, BorderLayout.PAGE_END);
 }
 @Override
 public void actionPerformed(ActionEvent e) {
 
 textField2.setText((String)jList1.getSelectedValue());
 
 if(e.getSource() == buttonAccept){
 labelInfo.setText("by buttonAccept");
 }else{
 labelInfo.setText("unknow source");
 }
 }
 @Override
 public void valueChanged(ListSelectionEvent e) {
 textField2.setText((String)jList1.getSelectedValue());
 labelInfo.setText("by jList1");
 }
}