table.getSelectionModel().addListSelectionListener(new ListSelectionListener() {
            @Override
            public void valueChanged(ListSelectionEvent event) {
                if (!event.getValueIsAdjusting()) {
                    TableModel model = table.getModel();
                    int row = table.getSelectedRow();
                    int column = table.getSelectedColumn();
                    System.out.println(model.getValueAt(row, column));
                }
            }
        });