JButton in JTable with custom table model

Hi!
I want to include a JButton into a field of a JTable. I do not know why Java does not provide a standard renderer for JButton like it does for JCheckBox, JComboBox and JTextField. I found some previous postings on how to implement custom CellRenderer and CellEditor in order to be able to integrate a button into the table. In my case I am also using a custom table model and I was not able to create a clickable button with any of the resources that I have found. The most comprehensive resource that I have found is this one: http://www.java2s.com/Code/Java/Swing-Components/ButtonTableExample.htm.
It works fine (rendering and clicking) when I start it. However, as soon as I incorporate it into my code, the clicking does not work anymore (but the buttons are displayed). If I then use a DefaultTableModel instead of my custom one, rendering and clicking works again. Does anyone know how to deal with this issue? Or does anyone have a good pointer to a resource for including buttons into tables? Or does anyone have a pointer to a resource that explains how CellRenderer and CellEditor work and which methods have to be overwritten in order to trigger certain actions (like a button click)?
thanks

Yes, you were right, the TableModel was causing the trouble, everything else worked fine. Somehow I had this code (probably copy and pasted from a tutorial - damn copy and pasting) in my TableModel:
        public boolean isCellEditable(int row, int col) {
            //Note that the data/cell address is constant,
            //no matter where the cell appears onscreen.
            if (col < 3) {
                return false;
            } else {
                return true;
}A pretty stupid thing when you want to edit the 3rd column...

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    Kleopatra wrote:
    jduprez wrote:
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      import java.awt.Frame;
      import java.awt.Menu;
      import java.awt.MenuBar;
      import java.awt.MenuItem;
      import java.awt.MenuShortcut;
      import java.awt.event.ActionEvent;
      import java.awt.event.ActionListener;
      import java.awt.event.KeyEvent; // for MenuItem shortcuts
      import java.awt.event.WindowAdapter;
      import java.awt.event.WindowEvent;
      import java.awt.event.WindowListener;
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              // programmer will be using LinkedLists
      import java.util.LinkedList;
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                file = "";           // pathname of the file to be opened
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          deleteRecordR_MI = new MenuItem("Delete record");
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           deleteRecordR_MI.addActionListener(this);
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      public Object[] populateRow(String title, String name, String comp, int rank, float price)
          // First, update the LinkedList
          mDBase = new MusicDatabase(title, name, comp, rank, price);
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           // Using the platform's L&F (if Win32,  Windows L&F; Mac OS, Mac OS L&F,
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           app.frame.setLocationRelativeTo(null);
      // action methods per menu items
      // Also, why do I keep getting an ArrayIndexOutOfBoundsException
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                       "\nPlease fill these in before proceeding",       // Message to user
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                       JOptionPane.ERROR_MESSAGE);                           // Relevant icon
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               // updated, JOptionPane's input dialogs are used to temporarily store
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              String titleN, identityN, companyN; int rankN; float priceN;
              titleN = JOptionPane.showInputDialog(this, "Enter song title");
              identityN = JOptionPane.showInputDialog(this,                                      "Enter name of singer/band");
             companyN = JOptionPane.showInputDialog(this,                                 "Enter signed/unsigned company");
             rankN = Integer.parseInt( JOptionPane.showInputDialog(this,
                             "Enter rank (a number)") );
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             /* Problem lies here */
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                 if((recordDetails.getValueAt(row, 4)).equals(""+rankN))
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                             "That number's already chosen.\nPlease enter a rank ") );
             priceN = Float.parseFloat( JOptionPane.showInputDialog(this,                                 "Finally, enter price �") );
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             musicList.add(mDBase);
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         priceN));
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                   recordDetails.getRowCount());
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         if((recordsTable.getRowCount()) > 0)
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          System.out.println("Columns = "+columns);
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              // This approach is flexible, rather than hardcoding the rows available,
              // making it more reusable (assuming it will always be 5 columns)
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                 isEmpty = true;
                  else if((recordDetails.getValueAt(rowIndex, 2)).equals(""))
               isEmpty = true;
                  else if((recordDetails.getValueAt(rowIndex, 3)).equals(""))
               isEmpty = true;                
                  else if((recordDetails.getValueAt(rowIndex, 4)).equals("0"))
               isEmpty = true;
                  else if((recordDetails.getValueAt(rowIndex, 5)).equals("0.00"))
               isEmpty = true;
          catch(Exception e)
             System.out.println(e.getMessage());
          return isEmpty;
      Now here is the code for the MusicDatabase class
    package Practice;
    class MusicDatabase
        private String songTitle, identity, musicCompany;
        private int rank;
        private float priceF;
        // Defining the constructor
        public MusicDatabase(String title, String name, String company,                                int rankingInt, float price)
           songTitle = title;
           identity = name;
           musicCompany = company;
           rank = rankingInt;
           priceF = price;
        } // constructor
       // Other methods
    } // class MusicDatabaseSorry, but am not sure if these codes are executable, as where I am (a general library), JVM is not on the machine I am using. (Remember, i don't have ready acess to the Internet, so I could not use my machine, nor the facilities that had the JVM - unavailable to me at the time).
    Thanks!
    Reformer...
    PS I do hope the code pasted was not too much. Kind regards....

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