public void getData() { for (int i = model.getRowCount() - 1; i >= 0; i--) { model.removeRow(i); } EmpDAO dao = new EmpDAO(); ArrayList<EmpDTO> list = dao.empAllData(); for (EmpDTO d : list) { String[] data = { String.valueOf(d.getEmpno()), d.getEname(), d.getJob(), d.getHiredate().toString(), String.valueOf(d.getDeptno()) }; model.addRow(data); } }