Thread: need help with a program

create c++ programm that defines a class to represent a bank account.
Data members should include the depositor’s name, the account number(use a string), and the balance.
Member functions should allow the following:
1)Creating an object and initializing it.
2)Displaying the depositor’s name, account number, and balance.
3)Depositing an amount of money given by an argument.
4)Withdrawing an amount of money given by an argument.

having trouble with the member funtion ShowInfo() which has to output DepositorName, AccountNumber, and Balance

Code:

#include <cstring>
#include <iostream>

using namespace std;

class BankAccount
{
private:
        std::string DepositorName;
        std::string AccountNumber;
        double Balance;
public:
        BankAccount();
        BankAccount(std::string depname, std::string acnum, double bal );
        ~BankAccount();  //destructor
        void ShowInfo() const;
        void Deposit(double depamount);
        void Withdraw(double amount);
};

//non-defualt constructor
BankAccount::BankAccount(std::string depname, std::string acnum,  double bal)
{
           DepositorName = depname;
           AccountNumber = acnum;
           Balance = bal;
}

//destructor
BankAccount::~BankAccount()
{
}

void BankAccount::Withdraw(double amount)
{
        if (amount < 0)
              std::cout << "\nPlease enter positive number for the amount to withdraw.";
        else
                Balance -= amount;
}


void BankAccount::Deposit(double depamount)
{
          if (depamount < 0)
               std::cout << "\nPlease enter positive number for  the amount to deposit.";
          else
                  Balance+=depamount;
}


void BankAccount::ShowInfo() const
{
	
	cout << DepositorName;
	cout << AccountNumber;
    cout << Balance;
}



int main()
{
	BankAccount somename("some name", "08973541", 60000);

	somename.ShowInfo();

	somename.Deposit(15000);

	somename.ShowInfo();

	somename.Withdraw(30000);

	somename.ShowInfo();
}

How does it not work? One thing I notice is that you use std::string but did not #include <string>.

Originally Posted by K13

it works, now. wow can i delete this post

Please do not do edit out your answer. You basically made my reply look stupid, and when I look stupid, I may decide not to answer your questions and close your thread so as to deny you any answers. In other words, out of courtesy to other members of this community, leave your post as-is so that the thread still makes sense to a future reader.

It is extreme bad form to edit your posts after you solved the problem. The main reason for these forums is for people to learn from eachother. No one here is paid for contributing their time; removing your posts negates the work done by the people here who contribute there time to assist because it prevents others from learning. If you do not want to contribute to the community here then find your way to another online resource, such as a paid one.

EDIT: Too late.

Originally Posted by laserlight

How does it not work? One thing I notice is that you use std::string but did not #include .

Is it necessary ?I just found out that code using std::string works (in gcc-4.6) without including string . Does the linker automatically find out the classes declared in the standard library but not the objects ?(std::cout always needs iostream) ?

Originally Posted by manasij7479

Is it necessary ?I just found out that code using std::string works (in gcc-4.6) without including string .

You may have included some other header that includes <string>.

Originally Posted by manasij7479

Does iostream and/or fstream include string ?

It depends on the implementation.

To give you a straight answer: simply put, you need to #include <string>, whether directly or indirectly, to use std::string objects.