title: How do I get the original value of a JTable cell in a TableModelEvent?
body: <p>Let's say I change a cell with value "old" to "new". This will invoke tableChanged(TableModelEvent). How do I retrieve the value that the cell had before "new"(which should be "old")?</p>
  
  <p>I thought about making a copy of TableModel of my JTable,but is there a simpler and smarter way to do this?</p>
  
  <p>Thanks in advance!</p>