Getting the ACTUAL size of a JTable

Hi all, I've been trying to get the actual size of a JTable for awhile now. I have tried just about every getSize or whatever other size method you can think of and nothing is working out for me. A lot of the times I'll get a value of 0 and other times I'll get a non-zero value. The variance is coming from which getSize method I use and where I'm using it. Whatever the value is though, they do not match up with the actual size that I'm seeing when everything is displayed.
My JTable is within a JScrollPane, which is within a JSplitPane. The JTable takes up the complete size of the JScrollPane and the JScrollPane takes up the complete size of JSplitPane (the top component at least). I have tried getting the sizes from each of these components that are used to contain the JTable, but each one of the values I get are incorrect too.
Anyone have any ideas to help me out?
Thanks, Bryan

Thanks for your help camickr.
I ended up writing a component listener for the frame since componentShown only listens for calls to the setVisible method. Also, I can now resize the table columns whenever the user resizes the frame.
    /*Add component listener to frame. When frame is shown or
      resized, then set student table column widths*/
    this.addComponentListener(new ComponentListener() {
      public void componentShown(ComponentEvent e) {
        setStudentTableColumnWidths();
      public void componentResized(ComponentEvent e) {
        setStudentTableColumnWidths();
      public void componentMoved(ComponentEvent e) {}
      public void componentHidden(ComponentEvent e) {}
   * Sets the student table column widths. The username column should take up
   * ~1/3 of the table and the student name column should take up ~2/3 of the
   * table.
private void setStudentTableColumnWidths()
    TableColumnModel tableColumnModel = studentsTable.getColumnModel();
    Dimension scrollPaneViewportSize = studentsTableScrollPane.getViewport().getSize();
    int usernameColWidth = scrollPaneViewportSize.width/3;
    int studentNameColWidth = scrollPaneViewportSize.width - usernameColWidth;
    tableColumnModel.getColumn(0).setPreferredWidth(usernameColWidth);
    tableColumnModel.getColumn(1).setPreferredWidth(studentNameColWidth);
}

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