[es] - Problem sa kodom

s@le
Apatin

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Poruke: 11
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^{15.01.2008. u 20:11 - pre 198 meseci}

Pozdrav svima.
Totalni sam pocetnik u svetu programiranja. Poceo sam da ucim c++ iz knjige "Learn to program C++" i sve je bilo ok dok nisam naisao na deo koda koji kod mene ne radi, a po knjizi bi trebao da radi. Pretpostavljam da je neki banalan razlog i zamolio bih nekog da mi objasni sta nije u redu.

Problem je u tome sto nakon pokretanja programa i upisa "yes", umesto mogucnosti da odaberem jednu od tri opcije, program prestaje da radi.

Code:

#include <iostream>
#include <string>

using namespace std;

int main()

{
    char response[256];
    string moreBankingBusiness;

    cout << "Do you want to do some banking? ";
    cin >> moreBankingBusiness;

    for (int i = 0; i < moreBankingBusiness.length(); i++)
    {
        moreBankingBusiness[i] = toupper (moreBankingBusiness[i]);
    }

    while (moreBankingBusiness == "YES")
    {
        cout << "What would you like to do? " << "(1=Deposit, 2=Withdraw, 3=Get Balance): ";

        cin.getline(response,256);




            if (atoi(response) < 1) | (atoi(response) > 3)
            {
                cout << response << endl << " - is not a valid banking function " << endl << endl;
                return 1;
            }

            else
                if (atoi(response) == 1)
            {
                cout << "You pressed 1";
            }

            if (atoi(response) == 2)
            {
                cout << "You pressed 2";
            }

            if (atoi(response) == 3)
            {
                cout << "You pressed 3";
            }

    }

    cout << endl << endl << "Thanks for banking with us! ";

    return 0;
}

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laki_srt
laki_srt
ucenik

Član broj: 166987
Poruke: 183
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Re: Problem sa kodom

^{15.01.2008. u 21:09 - pre 198 meseci}

Evo ti kod koji radi pa ti prostudiraj gde si pogresio:

Code:

#include <iostream>
#include <string>

using namespace std;

int main()

{
    char response[256];
    string moreBankingBusiness;

    cout << "Do you want to do some banking? ";
    cin >> moreBankingBusiness;

    for (int i = 0; i < moreBankingBusiness.length(); i++)
    {
        moreBankingBusiness[i] = toupper (moreBankingBusiness[i]);
    }

    while (moreBankingBusiness == "YES")
    {
        cout << "What would you like to do? " << "(1=Deposit, 2=Withdraw, 3=Get Balance,4=Exit): ";

        cin>>response;




        if ((atoi(response) < 1) | (atoi(response) > 4))
            {
                cout << response<<endl << " - is not a valid banking function " << endl << endl;
                return 1;
            }

        else {
                if (atoi(response) == 1)
            {
                cout << "You pressed 1"<<endl;
            }

            if (atoi(response) == 2)
            {
                cout << "You pressed 2"<<endl;
            }

            if (atoi(response) == 3)
            {
                cout << "You pressed 3"<<endl;
            }
             if (atoi(response) == 4)
            {
              cout << endl << endl << "Thanks for banking with us! ";
              break;
            }

        }    }



    return 0;
}

Odgovor na temu

s@le
Apatin

Član broj: 68410
Poruke: 11
79.101.179.*

Profil

Re: Problem sa kodom

^{15.01.2008. u 23:30 - pre 198 meseci}

Sretene, hvala na odgovoru. Moram priznati da je moja greska sto nisam odmah postovao ceo kod, vec sam pokusao da izdvojim i modifikujem deo koji ne radi.

Ovo je originalan kod programa iz knjige:

Code:

#include <iostream>
#include <string>

using namespace std;

int main()
{
    float balance = 0;
    float newBalance = 0;
    float adjustment = 0;
    char response[256];
    string moreBankingBusiness;
    cout << "Do you want to do some banking? ";
    cin >> moreBankingBusiness;

    for (int i = 0; i < moreBankingBusiness.length(); i++) {
            moreBankingBusiness[i] = toupper (moreBankingBusiness[i]);
            }

        while (moreBankingBusiness == "YES") {

            cout << "What would you like to do? " << "(1=Deposit, 2=Withdraw, 3=Get Balance): ";
            cin.getline(response,256);

            if (strlen(response) == 0) {
                cout << "You must make a selection";
                return 1;
                }
            else
                if (atoi(response) < 1 | atoi(response) > 3) {
                cout << response << " - is not a valid banking function";
                return 1;
                }

            if (atoi(response) == 1) {
                cout << "Enter the Deposit Amount: ";
                cin >> adjustment;
                newBalance = balance + adjustment;

                cout << endl << endl << "*** SMILEY NATIONAL BANK ***" << endl << endl;
                cout << "Old Balance is: " << balance << endl;
                cout << "Adjustment is: +" << adjustment << endl;
                cout << "New Balance is: " << newBalance << endl <<endl;
            }

            if (atoi(response) == 2) {
                cout << "Enter the Withdrawal Amount: ";
                cin >> adjustment;
                newBalance = balance - adjustment;

                cout << endl << endl << "*** SMILEY NATIONAL BANK ***" << endl << endl;
                cout << "Old Balance is: " << balance << endl;
                cout << "Adjustment is: -" << adjustment << endl;
                cout << "New Balance is: " << newBalance << endl <<endl;
            }

            if (atoi(response) == 3) {
                cout << endl << endl << "*** SMILEY NATIONAL BANK ***" << endl << endl;
                cout << "Your current Balance is: " << newBalance << endl <<endl;
            }
                balance = newBalance;
                cout << "Do you have more banking business? ";
                cin >> moreBankingBusiness;

                for (int i = 0; i < moreBankingBusiness.length(); i++) {
                    moreBankingBusiness[i] = toupper (moreBankingBusiness[i]);
                }
            }

        cout << endl << endl << "Thanks for banking with us!";
        return 0;
}

Ko bude pokrenuo kod videce da program ne radi kako treba. Najvise me buni sto je sve isto kao u knjizi, samo sto kod mene ne radi.
Mislim da sam pronasao u cemu je greska. Potrebno je dodati cin.ignore() pre cin.getline() i sve izgleda da radi kako treba. E sad samo jos ako neko moze da mi objasni zasto se ovo desava? Mislim da nije do stamparske greske jer ima vise primera koda gde se ovo desava.

Pozdrav, Sasa

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