Locked table columns in JTable?

Question

Does anyone know if a JTable can implement locked columns? By which I mean, I'd like to nominate 1 or more columns that remain locked to the left (or even right) of the table display and don't scroll out of view when scrolling horizontally.
I can imagine some round-about ways of doing it, but I wonder if there's a simple way to do it.
Thanks
Iain

Answer 1

Here is my attempt at this:
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.table.*;
public class FixedColumnScrollPane extends JScrollPane
    public FixedColumnScrollPane(JTable main, int fixedColumns)
        super( main );
        //  Use the table to create a new table sharing
        //  the DataModel and ListSelectionModel
        JTable fixed = new JTable( main.getModel() );
        fixed.setSelectionModel( main.getSelectionModel() );
        fixed.getTableHeader().setReorderingAllowed( false );
        fixed.getTableHeader().setResizingAllowed( false );
        fixed.putClientProperty("terminateEditOnFocusLost", Boolean.TRUE);
        main.putClientProperty("terminateEditOnFocusLost", Boolean.TRUE);
        //  Remove the fixed columns from the main table
        for (int i = 0; i < fixedColumns; i++)
            TableColumnModel columnModel = main.getColumnModel();
            columnModel.removeColumn( columnModel.getColumn( 0 ) );
        //  Remove the non-fixed columns from the fixed table
        while (fixed.getColumnCount() > fixedColumns)
            TableColumnModel columnModel = fixed.getColumnModel();
            columnModel.removeColumn( columnModel.getColumn( fixedColumns ) );
        //  Add the fixed table to the scroll pane
        fixed.setPreferredScrollableViewportSize(fixed.getPreferredSize());
        setRowHeaderView( fixed );
        setCorner(JScrollPane.UPPER_LEFT_CORNER, fixed.getTableHeader());
    public static void main(String[] args)
        //  Build your table normally
        JTable table = new JTable(10, 8);
        table.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);
        JScrollPane scrollPane= new FixedColumnScrollPane(table, 2 );
        JFrame frame = new JFrame("Table Fixed Column Demo");
        frame.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
        frame.getContentPane().add( scrollPane );
        frame.setSize(400, 300);
        frame.setVisible(true);
}