Overriding getColumnClass: A working example, if you would, please?

Question

I've read that using an @Override of the getColumnClass method is usefull when you
have a table full of ints or bytes and you want to avoid using code like this extensively:
Integer.valueOf(jTable1.getValueAt(0, 0).toString());I've got a snippet here that shows the actual code used in the framework:
    public Class<?> getColumnClass(int columnIndex) {
     return Object.class;
    }but when I put it into a working example:
package tableclass;
import java.awt.BorderLayout;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;
public class EditorTest extends JFrame
        JTable table = new JTable(10, 5){
            @Override
    public Class<?> getColumnClass(int columnIndex) {
     return Object.class;
    public EditorTest()
        table.setPreferredScrollableViewportSize(table.getPreferredSize());
        JScrollPane scrollPane = new JScrollPane( table );
        getContentPane().add( scrollPane, BorderLayout.SOUTH);
    public static void main(String[] args)
        EditorTest frame = new EditorTest();
        frame.setDefaultCloseOperation( EXIT_ON_CLOSE );
        frame.pack();
        frame.setLocationRelativeTo( null );
        frame.setVisible(true);
}I have no idea what to put in the override to make it usefull.
could someone please give me an idea of what to put here?

Answer 1

camickr wrote:
I read the tutorial,Then where is your SSCCE that shows you overriding the getColumClass() method from the example you found in the tutorial.
I scoured google for getColumnClassI never said anything about Google. I suggested you search these forums.
If someone had suggested overriding the getValueAt method to return an int or a byte insteadBecause that is not the way to do it and that is not the way the tutorial example works. The tutorial stores different Object types, Data, Boolean, etc. The question you asked was not about storing data it was about overriding the getColumnClass(...) method.
If you would have posted the code from the tutorial and asked a specific question about the code, then you would get an explanation.
But the code you posted gave no indication whatsoever that you bothered to take the time to read the tutorial or search the forum, because the code you posted looked nothing like anything found in the tutorial or anything that you could have found in the forum.
I was under the impression that overriding this method would let me return data primitives without having to parse or cast them out.Well, that is not what your question asked. We are not mind readers.
Your question asked for an example of how to override a specific method. Why should we waste time creating an example, when the tutorial and forums are full of examples?Apologies.