Question

Since you create the JTable with an matrix for data and array for the columns I figured there should be a way to after created the JTable adding an array (row). Or how is it meant to add a row with Strings?

Thanks!

Answer 1

You cannot add to a JTable directly, you have to get the underlying TableModel. You get this by calling JTable.getModel(). TableModel is an interface, in a standard JTable it’s implementation is DefaultTableModel. So you have to cast the underlying TableModel to a DefaultTableModel, and then you can apply DefaultTableModel.addRow( Object[] ). (You do, of course, check that the cast is safe and all that).