Main.java Source code

Introduction

Here is the source code for Main.java

Source

import java.awt.FlowLayout;

import javax.swing.JFrame;
import javax.swing.JList;
import javax.swing.JScrollPane;
import javax.swing.ListSelectionModel;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;

public class Main {

    String languages[] = { "Java", "Perl", "Python", "C++", "Basic", "C#" };

    JList jlst = new JList(languages);

    Main() {
        JFrame jfrm = new JFrame("Use JList");
        jfrm.setLayout(new FlowLayout());
        jfrm.setSize(200, 160);
        jfrm.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        jlst.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
        jlst.addListSelectionListener(new ListSelectionListener() {
            public void valueChanged(ListSelectionEvent le) {
                int idx = jlst.getSelectedIndex();
                if (idx != -1)
                    System.out.println("Current selection: " + languages[idx]);
                else
                    System.out.println("Please choose a language.");
            }
        });

        jfrm.add(new JScrollPane(jlst));
        jfrm.setSize(300, 300);
        jfrm.setVisible(true);
    }

    public static void main(String args[]) {
        new Main();
    }
}