about JTable

[Jude Fawly]

how can i set the first cell in the first row in the JTable to be selected given that i am now at the third row?

[Craig Wood]

import java.awt.*;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.table.*;
 
public class ProgramaticSelection
{
    public ProgramaticSelection()
    {
        JTable table = getTable();
        table.setRowSelectionAllowed(true);
        table.setColumnSelectionAllowed(true);
        JFrame f = new JFrame();
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        f.add(getUIPanel(table), "North");
        f.add(new JScrollPane(table));
        f.setSize(400,400);
        f.setLocation(200,200);
        f.setVisible(true);
    }
 
    private JTable getTable()
    {
        String[] headers = { "column 1", "column 2", "column 3", "column 4" };
        int rows = 16, cols = 4;
        Object[][] data = new Object[rows][cols];
        for(int row = 0; row < rows; row++)
            for(int col = 0; col < cols; col++)
                data[row][col] = "item " + (row * cols + col + 1);
        return new JTable(data, headers);
    }
 
    private JPanel getUIPanel(final JTable table)
    {
        SpinnerNumberModel rowModel = new SpinnerNumberModel(0, 0,
                                                  table.getRowCount()-1, 1);
        final JSpinner rowSpinner = new JSpinner(rowModel);
        SpinnerNumberModel colModel = new SpinnerNumberModel(0, 0,
                                                  table.getColumnCount()-1, 1);
        final JSpinner colSpinner = new JSpinner(colModel);
        ChangeListener l = new ChangeListener()
        {
            int row = 0, col = 0;
 
            public void stateChanged(ChangeEvent e)
            {
                JSpinner spinner = (JSpinner)e.getSource();
                int value = ((Integer)spinner.getValue()).intValue();
                if(spinner == rowSpinner)
                    row = value;
                if(spinner == colSpinner)
                    col = value;
                table.changeSelection(row, col, false, false);
            }
        };
        rowSpinner.addChangeListener(l);
        colSpinner.addChangeListener(l);
        JPanel panel = new JPanel(new GridBagLayout());
        GridBagConstraints gbc = new GridBagConstraints();
        gbc.insets = new Insets(2,2,2,2);
        gbc.weightx = 1.0;
        addComponents(new JLabel("row index"), rowSpinner, panel, gbc);
        addComponents(new JLabel("col index"), colSpinner, panel, gbc);
        return panel;
    }
 
    private void addComponents(JLabel label, JSpinner spinner,
                               JPanel p, GridBagConstraints gbc)
    {
        gbc.anchor = gbc.EAST;
        p.add(label, gbc);
        gbc.anchor = gbc.WEST;
        p.add(spinner, gbc);
    }
 
    public static void main(String[] args)
    {
        new ProgramaticSelection();
    }
}