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

public class JTableTest extends JFrame implements TableColumnModelListener, TableModelListener {
    JTable jt;
    
    public JTableTest() {
	super("JTable Test");
	
	//Create the table and give the data as a two-dimensional
	//String array and the column headers as a one-dimensional String array.
	jt = new JTable(new String[][] { {"This",    "is",      "cell 13"}, 
					 {"a",       "Test",    "cell 23" },
					 {"cell 31", "cell 32", "cell 33" } },
			new String[] {"Col 1", "Col 2", "Col 3"});
	
	
	//Listen for events from the column model.
	jt.getColumnModel().addColumnModelListener(this);
	//Listen for events from the tabel model.
	jt.getModel().addTableModelListener(this);
	
	//Increase the distance between the cells.
	jt.setIntercellSpacing(new Dimension(15, 15));
	
	//Use cell selections instead of row selections. Note that we can
	//still select ranges of cells, like we could select ranges
	//of rows before.
	jt.setCellSelectionEnabled(true);
	jt.setRowSelectionAllowed(false);
	
	//Cell editing will start when the user clicks this button.
	JButton b = new JButton("Edit");
	b.addActionListener(new ActionListener() {
		public void actionPerformed(ActionEvent e) {
		    //Start editing the cell at row 2, column 2.
		    jt.editCellAt(2, 2);
		    //Give focus to the table. If the button keeps focus
		    //the cell can not be edited.
		    jt.requestFocus();
		}
	    });
	getContentPane().add(b, BorderLayout.NORTH);
	
	//Place the table in a JScrollPane and display it.
	JScrollPane jsp = new JScrollPane(jt);
	getContentPane().add(jsp, BorderLayout.CENTER);
	addWindowListener(new WindowAdapter() {
		public void windowClosing(WindowEvent e) {
		    e.getWindow().dispose();
		    System.exit(0);
		}
	    });
	setSize(300, 200);
	setVisible(true);
    }
    
    public void columnAdded(TableColumnModelEvent e) {
	System.out.println("column added");
    }
    
    public void columnMarginChanged(ChangeEvent e) {
	System.out.println("column margin changed");
    }
    
    public void columnMoved(TableColumnModelEvent e) {
	System.out.println("column moved");
    }
    
    public void columnRemoved(TableColumnModelEvent e) {
	System.out.println("column removed");
    }
    
    public void columnSelectionChanged(ListSelectionEvent e) {
	System.out.println("selection: " + e.getFirstIndex() +
			   " - " + e.getLastIndex() + "  valueIsAdjusting: "
			   + e.getValueIsAdjusting());
	
	int[] sel = jt.getColumnModel().getSelectedColumns();
	for (int i = 0; i < sel.length; i++)
	    System.out.println("column " + sel[i] + " selected");
	
	sel = jt.getSelectedRows();
	for (int i = 0; i < sel.length; i++)
	    System.out.println("row " + sel[i] + " selected");
	
	System.out.println();
	
    }
    
    public void tableChanged(TableModelEvent e) {
	System.out.println("table changed ");
    }
    
    public static void main(String args[]) {
	new JTableTest();
    }
    
}