ListTest.java Source code

Introduction

Here is the source code for ListTest.java

Source

import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JList;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;

public class ListTest extends JFrame implements ListSelectionListener {
    JLabel label = new JLabel("The fox jumps over the lazy dog.");

    public ListTest() {
        setTitle("ListTest: Press control to multi-select");
        setSize(400, 300);
        addWindowListener(new WindowAdapter() {
            public void windowClosing(WindowEvent e) {
                System.exit(0);
            }
        });

        String[] words = { "quick", "brown", "hungry", "wild", "silent", "huge" };

        JList wordList = new JList(words);
        JScrollPane scrollPane = new JScrollPane(wordList);

        JPanel p = new JPanel();
        p.add(scrollPane);
        wordList.addListSelectionListener(this);

        getContentPane().add(p, "South");
        getContentPane().add(label, "Center");
    }

    public void valueChanged(ListSelectionEvent evt) {
        JList source = (JList) evt.getSource();
        Object[] values = source.getSelectedValues();

        String text = "";
        for (int i = 0; i < values.length; i++) {
            String word = (String) values[i];
            text += word + " ";
        }
        label.setText("The " + text + "fox jumps over the lazy dog.");
    }

    public static void main(String[] args) {
        JFrame frame = new ListTest();
        frame.show();
    }
}