javax.swing.JTable table = dBTable1.getTable(); 

javax.swing.ListSelectionModel rowSM = table.getSelectionModel();

int lastSelectedRow = 0;

rowSM.addListSelectionListener(new javax.swing.event.ListSelectionListener()

{

 public void valueChanged(ListSelectionEvent e)

 {

 int currentSelectedRow = table.getSelectedRow();

 if( currentSelectedRow == lastSelectedRow || currentSelectedRow == -1 )

 return;

 //the currently selected row is currentSelectedRow,

 //now you can use dBTable1.getValueAt() and get the data in different columns of this row

 lastSelectedRow = currentSelectedRow;

 }

});