Why table getWidth and setWidth is not working when resize column the table

Question

hi all,
i want to know why the setWidth is not working in the following code,
try to uncomment the code in columnMarginChanged method and run it wont resize the table.
i cont set width(using setWidth) of the other table column using getWidth of the main table column.
and i want to resize the right side columns only (you can check when you resize the any column the left and right side columns also resizing)
any suggestions could be helpful.
import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.Box;
import javax.swing.BoxLayout;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JTable;
import javax.swing.SwingUtilities;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.TableColumnModelEvent;
import javax.swing.event.TableColumnModelListener;
import javax.swing.table.TableColumnModel;
public class SynTableResize extends JFrame implements TableColumnModelListener, ActionListener
    JTable  table1       = new JTable(5, 5);
    JTable  table2       = new JTable(5, 5);
    JTable  table3       = new JTable(5, 5);
    JButton btn          = new JButton("refresh");
    JPanel  pnlcontainer = new JPanel();
    public SynTableResize()
        setLayout(new BorderLayout());
        pnlcontainer.setLayout(new BoxLayout(pnlcontainer, BoxLayout.Y_AXIS));
        pnlcontainer.add(table1.getTableHeader());
        pnlcontainer.add(Box.createVerticalStrut(5));
        pnlcontainer.add(table2);
        pnlcontainer.add(Box.createVerticalStrut(5));
        pnlcontainer.add(table3);
        table2.setTableHeader(null);
        table3.setTableHeader(null);
        table1.getColumnModel().addColumnModelListener(this);
        table3.setColumnModel(table1.getColumnModel());
        table2.setColumnModel(table1.getColumnModel());
        table2.getColumnModel().addColumnModelListener(table1);
        table3.getColumnModel().addColumnModelListener(table1);
        btn.addActionListener(this);
        getContentPane().add(pnlcontainer, BorderLayout.CENTER);
        getContentPane().add(btn, BorderLayout.SOUTH);
        setSize(new Dimension(400, 400));
        setVisible(true);
        setDefaultCloseOperation(EXIT_ON_CLOSE);
    public static void main(String[] args)
        new SynTableResize();
    public void columnAdded(TableColumnModelEvent e)
    public void columnMarginChanged(ChangeEvent e)
        TableColumnModel tcm = table1.getColumnModel();
        int columns = tcm.getColumnCount();
        for (int i = 0; i < columns; i++)
            table2.getColumnModel().getColumn(i).setPreferredWidth(tcm.getColumn(i).getWidth());
            table3.getColumnModel().getColumn(i).setPreferredWidth(tcm.getColumn(i).getWidth());
            // the following commented code wont work.
//            table2.getColumnModel().getColumn(i).setPreferredWidth(tcm.getColumn(i).getPreferredWidth());
//            table3.getColumnModel().getColumn(i).setPreferredWidth(tcm.getColumn(i).getPreferredWidth());
//            table2.getColumnModel().getColumn(i).setWidth(tcm.getColumn(i).getWidth());
//            table3.getColumnModel().getColumn(i).setWidth(tcm.getColumn(i).getWidth());
        SwingUtilities.invokeLater(new Runnable()
            public void run()
                table2.revalidate();
                table3.revalidate();
    public void columnMoved(TableColumnModelEvent e)
    public void columnRemoved(TableColumnModelEvent e)
    public void columnSelectionChanged(ListSelectionEvent e)
    public void actionPerformed(ActionEvent e)
        JTable table = new JTable(5, 5);
        table.setColumnModel(table1.getColumnModel());
        table.getColumnModel().addColumnModelListener(table1);
        pnlcontainer.add(Box.createVerticalStrut(5));
        pnlcontainer.add(table);
        pnlcontainer.validate();
        pnlcontainer.repaint();
}thanks
dayananda b v

Answer 1

hi,
thanks for your replay,
yes i know that, you can check the following code it works fine.
actually what i want is, when i resize table column it shold not automaticaly reszie when table resized and i dont want horizontal scroll bar, meaning that all table columns should resize with in the table size(say width 300)
if i make table autoresize off than horizontal scroll bar will appear and the other columns moved and i want scroll to view other columns.
please suggest me some way doing it, i tried with doLayout() no help,
doLayout() method only can be used when table resizes. first off all i want to restrict table resizing with in the limited size
import java.awt.BorderLayout;
import java.awt.Dimension;
import javax.swing.Box;
import javax.swing.BoxLayout;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.event.ChangeEvent;
import javax.swing.table.TableColumnModel;
public class TempSycnTable extends JFrame
    JTable  table1       = new JTable(5, 5);
    MyTable table2       = new MyTable(5, 5);
    MyTable table3       = new MyTable(5, 5);
    JPanel  pnlcontainer = new JPanel();
    public TempSycnTable()
        JScrollPane src2 = new JScrollPane(table2);
        JScrollPane src3 = new JScrollPane(table3);
//        table1.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);
//        table2.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);
//        table3.setAutoResizeMode(JTable.AUTO_RESIZE_OFF);
//        src2.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);
//        src3.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);
        table2.setTableHeader(null);
        table3.setTableHeader(null);
        table3.setColumnModel(table1.getColumnModel());
        table2.setColumnModel(table1.getColumnModel());
        table2.getColumnModel().addColumnModelListener(table1);
        table3.getColumnModel().addColumnModelListener(table1);
        table2.setTableHeader(null);
        table3.setTableHeader(null);
        setLayout(new BorderLayout());
        pnlcontainer.setLayout(new BoxLayout(pnlcontainer, BoxLayout.Y_AXIS));
        pnlcontainer.add(table1.getTableHeader());
        pnlcontainer.add(Box.createVerticalStrut(5));
        pnlcontainer.add(src2);
        pnlcontainer.add(Box.createVerticalStrut(5));
        pnlcontainer.add(src3);
        getContentPane().add(pnlcontainer, BorderLayout.CENTER);
        setSize(new Dimension(300, 300));
        setVisible(true);
        setDefaultCloseOperation(EXIT_ON_CLOSE);
    public static void main(String[] args)
        new TempSycnTable();
    class MyTable extends JTable
        public MyTable()
            super();
        public MyTable(int numRows, int numColumns)
            super(numRows, numColumns);
        public void columnMarginChanged(ChangeEvent event)
            final TableColumnModel eventModel = table1.getColumnModel();
            final TableColumnModel thisModel = getColumnModel();
            final int columnCount = eventModel.getColumnCount();
            for (int i = 0; i < columnCount; i++)
                thisModel.getColumn(i).setWidth(eventModel.getColumn(i).getWidth());
            repaint();
}thanks
daya