/* * SimpleTableListenerDemo.java requires no other files. */ import javax.swing.event.*; import javax.swing.table.TableModel; import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.JScrollPane; import javax.swing.JTable; import java.awt.Dimension; import java.awt.GridLayout; import java.awt.event.MouseAdapter; import java.awt.event.MouseEvent; public class SimpleTableListenerDemo extends JPanel implements TableModelListener { public void tableChanged(TableModelEvent e) { int row = e.getFirstRow(); int column = e.getColumn(); TableModel model = (TableModel)e.getSource(); String columnName = model.getColumnName(column); Object data = model.getValueAt(row, column); // Do something with the data... System.out.println("changed " + row + "/" + column + " " + columnName + " = " + data); } public SimpleTableListenerDemo() { super(new GridLayout(1,0)); String[] columnNames = {"First Name", "Last Name", "Sport", "# of Years", "Vegetarian"}; Object[][] data = { {"Mary", "Campione", "Snowboarding", 5, Boolean.FALSE}, {"Alison", "Huml", "Rowing", 3, Boolean.TRUE}, {"Kathy", "Walrath", "Knitting", 2, Boolean.FALSE}, {"Sharon", "Zakhour", "Speed reading", 20, Boolean.TRUE}, {"Philip", "Milne", "Pool", 10, Boolean.FALSE} }; final JTable table = new JTable(data, columnNames); table.setPreferredScrollableViewportSize(new Dimension(500, 70)); table.getModel().addTableModelListener(this); //Create the scroll pane and add the table to it. JScrollPane scrollPane = new JScrollPane(table); //Add the scroll pane to this panel. add(scrollPane); } /** * Create the GUI and show it. For thread safety, * this method should be invoked from the * event-dispatching thread. */ private static void createAndShowGUI() { //Create and set up the window. JFrame frame = new JFrame("SimpleTableListenerDemo"); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); //Create and set up the content pane. SimpleTableListenerDemo newContentPane = new SimpleTableListenerDemo(); newContentPane.setOpaque(true); //content panes must be opaque frame.setContentPane(newContentPane); //Display the window. frame.pack(); frame.setVisible(true); } public static void main(String[] args) { //Schedule a job for the event-dispatching thread: //creating and showing this application's GUI. javax.swing.SwingUtilities.invokeLater(new Runnable() { public void run() { createAndShowGUI(); } }); } }