"tiewknvc9" <aotemp@hotmail.com> wrote in news:1136310568.610455.47510
@g49g2000cwa.googlegroups.com:

I haven't tested, but I think this would work - if you fill the JTable
with Strings.  You may need a specific approach based on what objects are
in the JTable.  

If you fill the table with for example HashMaps (I can't immediately
think of a reason why you would want to do that, but it's quite
possible), you could use something like:

Object o = getValueAt(iRow, iCol);
if(o != null)
  if(o instanceof HashMap)
     return ((HashMap)).isEmpty();
return false;

A more or less generic (not to be confused with Java's generics) way
could be:

getValueAt(iRow, iCol).toString().equals("")

Always make sure you test for null first of course, to avoid
NullPointerExceptions.

Object value = getValueAt(row, col);
if(value == null || ((value instanceof String)&&
           ((String)value).length == 0)){
   //  null or if String then it is empty
}

Result of using an operator [==] and a method [equals] may not be always
the same.