/* * SimpleTableDemo.java is a 1.4 application that requires no other files. */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 SimpleTableDemo extends JPanel {    private boolean DEBUG = false;    public SimpleTableDemo() {        super(new GridLayout(1,0));        String[] columnNames = {"First Name",                                "Last Name",                                "Sport",                                "# of Years",                                "Vegetarian"};        Object[][] data = {            {"Mary", "Campione",             "Snowboarding", new Integer(5), new Boolean(false)},            {"Alison", "Huml",             "Rowing", new Integer(3), new Boolean(true)},            {"Kathy", "Walrath",             "Knitting", new Integer(2), new Boolean(false)},            {"Sharon", "Zakhour",             "Speed reading", new Integer(20), new Boolean(true)},            {"Philip", "Milne",             "Pool", new Integer(10), new Boolean(false)}        };        final JTable table = new JTable(data, columnNames);        table.setPreferredScrollableViewportSize(new Dimension(500, 70));        if (DEBUG) {            table.addMouseListener(new MouseAdapter() {                public void mouseClicked(MouseEvent e) {                    printDebugData(table);                }            });        }        //Create the scroll pane and add the table to it.        JScrollPane scrollPane = new JScrollPane(table);        //Add the scroll pane to this panel.        add(scrollPane);    }    private void printDebugData(JTable table) {        int numRows = table.getRowCount();        int numCols = table.getColumnCount();        javax.swing.table.TableModel model = table.getModel();        System.out.println("Value of data: ");        for (int i=0; i < numRows; i++) {            System.out.print("    row " + i + ":");            for (int j=0; j < numCols; j++) {                System.out.print("  " + model.getValueAt(i, j));            }            System.out.println();        }        System.out.println("--------------------------");    }    /**     * Create the GUI and show it.  For thread safety,     * this method should be invoked from the     * event-dispatching thread.     */    private static void createAndShowGUI() {        //Make sure we have nice window decorations.        JFrame.setDefaultLookAndFeelDecorated(true);        //Create and set up the window.        JFrame frame = new JFrame("SimpleTableDemo");        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);        //Create and set up the content pane.        SimpleTableDemo newContentPane = new SimpleTableDemo();        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();            }        });    }}