//Copyright (c) 2000, Art Gittleman
//This example is provided WITHOUT ANY WARRANTY either expressed or implied.

/* Illustrates a JTable.
 */

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

public class TableDefault extends JFrame 
                    implements ListSelectionListener {
  Object[][] courses = { {"261", "Computing with Java"},
                         {"471", "Internet Applications with Java"},
                         {"524", "Topics in Programming Languages"} 
                       };
  String[] headings = { "Course Number", "Course Name" };
  JTable table;
  DefaultTableModel d = new DefaultTableModel(courses, headings);
  Button b = new Button("Change");

  public TableDefault(String title) {
    super(title);
    Container c = getContentPane();
    table = new JTable(d);
    JScrollPane scrollpane = new JScrollPane(table);
    scrollpane.setPreferredSize(new Dimension(500,200));
    JPanel panel = new JPanel();
    panel.add(b);
    c.add(panel, "North");
    c.add(scrollpane,"Center");
    addWindowListener(new CloseWindow());
    ListSelectionModel model = table.getSelectionModel();
    model.addListSelectionListener(this);
    b.addActionListener(new ActionListener() {
      public void actionPerformed(ActionEvent e) {
        String[] s = {"475", "C++"};
        d.insertRow(2, s);
        d.removeRow(0);
        String[] s1 = {"", ""};
        d.addRow(s1);
      }
    });
  }
  public void valueChanged(ListSelectionEvent e) {
    if (e.getValueIsAdjusting())
      return;
    ListSelectionModel m = (ListSelectionModel)e.getSource();
    int row = m.getMinSelectionIndex();
    System.out.println(row);
  }
  public static void main(String [] args) {
    TableDefault t = new TableDefault("Java classes");
    t.pack();
    t.show(); 
  }  
  class CloseWindow extends WindowAdapter {
    public void windowClosing(WindowEvent event) {
      System.exit(0);
    }
  }
}