sum a column in a JTable

I;m having some trouble with this one...How could I sum all the values from a column of a JTable and make it appear on a JTextField. The JTable is going to be editable, so I need to recalculate the value of the JTextField each time the data on the table changes....any ideas?
[289 byte] By [gangistera] at [2007-11-27 9:04:26]
# 1
try implementing a TableModelListener
lem@phila at 2007-7-12 21:37:37 > top of Java-index,Java Essentials,Java Programming...