private ArrayList<Journal> getSelectedJournals(){
        int[] rows = tabel.getSelectedRows();
        if (rows.length == 0) {
            ActionUtils.showErrorMessage(ActionUtils.SELECT_JOURNAL_FIRST);
        }
        ArrayList<Journal> journalList = new ArrayList<Journal>();
        for(int row : rows) {
            Journal journal = (Journal) tabel.getModel().getValueAt(row, 0);
            journalList.add(journal);
        }
        return journalList;

    }