Apply editing mask to table cell

Question

I tried to apply an date pattern to a cell of JTable, the program compile OK but it does not display the pattern I design. This is my code:
Object [][] rows = {{"a",new SimpleDateFormat("yyyy/dd/MM"),new SimpleDateFormat("yyyy/dd/MM"),"d"},{"",new SimpleDateFormat("yyyy/dd/MM"),new SimpleDateFormat("yyyy/dd/MM"),""}};
mytable = new DefaultTableModel(rows,columnHead);
Postings = new JTable(mytable);
This is what I actually see in the cell.
java.text.SimpleDateFormat@fb324900

Answer 1

The JTable simply uses the toString() method of the objects you put into your array to display them. So don't put SimpleDateFormat objects into the array. I can't suggest what you should put in there instead, because I can't tell what you want to see.