HELP!! set the cell color in jTable

Question

I need to set the color of a specific cell in jTable, but, I need to retain the old color in the jTable. It must not reset the whole table.
would anyone help me in this problem... PLSSSSS its urgent

Answer 1

A flexible variation on this is to specify formatting options in the JTable's client properties:
// Use some sort of special "key" to indicate the cell and that you want to set the background color
String key = "background:" + row + "," + column;
table.putClientProperty(key, Color.green);You can then write a general table cell renderer that looks for these special formatting options and it doesn't disrupt your existing TableModel in any way:
public class FormattingTableCellRenderer extends DefaultTableCellRenderer
  public Component getTableCellRendererComponent(JTable table, Object value, int row, int column, ...)
    Component component = super.getTableCellRendererComponent(table, value, row, column, ...);
    // See if the JTable specifies any properties to override the default format
    Color backgroundColor = (Color)table.getClientProperty("background:" + row + "," + column);
    if(backgroundColor != null)
      component.setBackground(backgroundColor);
    return component;
}Any custom cell renderers you have then simply need to extend FormatTableCellRenderer instead of DefaultTableCellRenderer.
It's very easy to add formatting options other than background, such as font, to the list of recognised attributes. You'll probably need to make some alterations to get it to recognise selection/focus but hopefully you get the idea.
Hope this helps.