Example of Swing JList and ListSelectionListener

Example of JList and ListSelectionListener

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");
    }

}