final public void exit_statement() throws ParseException {
    switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
    case basic_identifier:
    case extended_identifier:
      identifier();
      jj_consume_token(151);
      break;
    default:
      jj_la1[160] = jj_gen;
      ;
    }
    jj_consume_token(EXIT);
    switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
    case basic_identifier:
    case extended_identifier:
      identifier();
      break;
    default:
      jj_la1[161] = jj_gen;
      ;
    }
    switch ((jj_ntk==-1)?jj_ntk():jj_ntk) {
    case WHEN:
      jj_consume_token(WHEN);
      expression();
      break;
    default:
      jj_la1[162] = jj_gen;
      ;
    }
    jj_consume_token(SEMICOLON);
  }