Replace Error Code with Exception

Replace Error Code with Exception

A method returns a special code to indicate an error.

Throw an exception instead.

        int withdraw(int amount) {
                if (amount > _balance)
                        return -1;
                else {
                        _balance -= amount;
                        return 0;
                }
        }



        void withdraw(int amount) throws BalanceException {
                if (amount > _balance) throw new BalanceException();
                _balance -= amount;
        }


For more information see page 310 of Refactoring




***** 아름다운프로님에 의해서 게시물 복사 + 카테고리변경되었습니다 (2003-12-18 17:27)