import java.awt.*;
import javax.swing.*;
import java.awt.event.*;

public class AddValueToList extends JFrame {

  JList list;

  DefaultListModel model;
  public AddValueToList() {
    setLayout(new BorderLayout());
    model = new DefaultListModel();
    list = new JList(model);
    model.addElement("C/C++");
    model.addElement("Java");
    model.addElement("Perl");
    model.addElement("Pascal");
    JLabel lab=new JLabel("Enter Programming Language: ");
    final JTextField text=new JTextField(20);
    JScrollPane pane = new JScrollPane(list);
    JButton addButton = new JButton("Add Element");


    addButton.addActionListener(new ActionListener() {
      public void actionPerformed(ActionEvent e) {
          String lang=text.getText();
        model.addElement(lang);

      }
    });
    setLayout(null);
    lab.setBounds(10,10,200,20);
    text.setBounds(210,10,150,20);
    addButton.setBounds(210,40,120,20);
    pane.setBounds(370,10,100,100);
    add(lab);
    add(text);
    add(addButton);
    add(pane);
    setVisible(true);
    setSize(500,250);


  }

  public static void main(String s[]) {
    new AddValueToList();
  }
}