JTable: selecting multiple cells

Question

Supposing you have a spreadsheet layout with A,B,C on the columns and 1,2,3 on the rows, is it possible to allow the user to select cells A1 and C3, like they can in a normal spreadsheet app?
Somehow I need to obtain this kind of functionality from our system, although I have no idea how at present.

Answer 1

Something like.....
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class TableExample extends JFrame {
   boolean[][] selectedCells = new boolean[5][5];
    public TableExample() {
       super("Table Selection Test");
       final JTable table = new JTable(5, 5) {
          public boolean isCellSelected(int row, int column) {
             return selectedCells[row][column];
       table.addMouseListener(new MouseAdapter() {
          public void mousePressed(MouseEvent e) {
             int row = table.rowAtPoint(e.getPoint());
             int column = table.columnAtPoint(e.getPoint());
             if (e.isControlDown()) {
                selectedCells[row][column] = !selectedCells[row][column];
             else {
                for (int i = 0 ; i < 5 ; i++) {
                   for (int j = 0 ; j < 5 ; j++) {
                      selectedCells[i][j] = false;
                selectedCells[row][column] = true;
             table.repaint();
      getContentPane().setLayout(new BorderLayout());
      getContentPane().add(new JScrollPane(table), BorderLayout.CENTER);
      setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
      setSize(400, 400);
   public static void main(String[] args) {
      new TableExample().setVisible(true);
}