Object col[] = {"ID", "Kirjailija", "Nimi", "Julkaisuvuosi", "Kategoria", "Lainassa", "Lainaaja", "Alkuperäinen nimi"};
mod = new DefaultTableModel(null, col) {
        @Override
        public boolean isCellEditable(int row, int column) {
            return false;
        }
};
browseTable = new javax.swing.JTable();
sorter = new TableRowSorter<DefaultTableModel>(mod);
browseTable.setRowSorter(sorter);
browseTable.setModel(mod);


fillTable();
browseTable.getSelectionModel().addListSelectionListener(new ListSelectionListener() {
    public void valueChanged(ListSelectionEvent e) {
        id = (Integer) browseTable.getValueAt(browseTable.getSelectedRow(), 0);
        System.out.println(id);
    }
});
jScrollPane1.setViewportView(browseTable);