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Код

import javax.swing.*;
import javax.swing.event.ListSelectionEvent;
import javax.swing.table.AbstractTableModel;
import java.awt.*;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

public class FixedColumnExample extends JFrame {
    Object[][] data;

    Object[] column;

    JTable fixedTable, table;

    public FixedColumnExample() {
        super("Fixed Column Example");
        setSize(400, 150);

        data = new Object[][]{{"1", "11", "A", "", "", "", "", ""},
                {"2", "22", "", "B", "", "", "", ""},
                {"3", "33", "", "", "C", "", "", ""},
                {"4", "44", "", "", "", "D", "", ""},
                {"5", "55", "", "", "", "", "E", ""},
                {"6", "66", "", "", "", "", "", "F"}};
        column = new Object[]{"fixed 1", "fixed 2", "a", "b", "c", "d", "e",
                "f"};

        AbstractTableModel fixedModel = new AbstractTableModel() {
            public int getColumnCount() {
                return 2;
            }

            public int getRowCount() {
                return data.length;
            }

            public String getColumnName(int col) {
                return (String) column[col];
            }

            public Object getValueAt(int row, int col) {
                return data[row][col];
            }
        };
        AbstractTableModel model = new AbstractTableModel() {
            public int getColumnCount() {
                return column.length - 2;
            }

            public int getRowCount() {
                return data.length;
            }

            public String getColumnName(int col) {
                return (String) column[col + 2];
            }

            public Object getValueAt(int row, int col) {
                return data[row][col + 2];
            }

            public void setValueAt(Object obj, int row, int col) {
                data[row][col + 2] = obj;
            }

            public boolean CellEditable(int row, int col) {
                return true;
            }
        };

        fixedTable = new JTable(fixedModel) {
            public void valueChanged(ListSelectionEvent e) {
                super.valueChanged(e);
                checkSelection(true);
            }
        };
        table = new JTable(model) {
            public void valueChanged(ListSelectionEvent e) {
                super.valueChanged(e);
                checkSelection(false);
            }
        };
        fixedTable.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);
        table.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);
        fixedTable.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
        table.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);

        JScrollPane scroll = new JScrollPane(table);
        JViewport viewport = new JViewport();
        viewport.setView(fixedTable);
        viewport.setPreferredSize(fixedTable.getPreferredSize());
        scroll.setRowHeaderView(viewport);
        scroll.setCorner(JScrollPane.UPPER_LEFT_CORNER, fixedTable
                .getTableHeader());

        getContentPane().add(scroll, BorderLayout.CENTER);
    }

    private void checkSelection(boolean isFixedTable) {
        int fixedSelectedIndex = fixedTable.getSelectedRow();
        int selectedIndex = table.getSelectedRow();
        if (fixedSelectedIndex != selectedIndex) {
            if (isFixedTable) {
                table.setRowSelectionInterval(fixedSelectedIndex,
                        fixedSelectedIndex);
            } else {
                fixedTable
                        .setRowSelectionInterval(selectedIndex, selectedIndex);
            }
        }
    }

    public static void main(String[] args) {
        FixedColumnExample frame = new FixedColumnExample();
        frame.addWindowListener(new WindowAdapter() {
            public void windowClosing(WindowEvent e) {
                System.exit(0);
            }
        });
        frame.setVisible(true);
    }
}