Here is a small Bank system using C++. It is not a
professional Bank process system. Basically this tutorial is about learning C++.
It is a Small C++ course project and C++ basic syntax and structure cover on
it.
C++ Banking system features/Methods:
- Login Authentication - 4 logins with user name & password
- Account Open
- Deposit amount
- Withdraw amount
- Display all accounts
- Search account by CNIC No
Brief description about bank System:
First login using 4 different authentications (Username,
Password) which is already stored in the string type two dimensional arrays. Then
you can open the 10 different accounts after that you can do different transaction
through these accounts. You can also search a specific account through CNIC no.
and can also display all the records at a same time.
Here is the code of a bank system:
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#include
<iostream>
#include <string>
#include <sstream>
using namespace std;
int total_accounts = 10;
string accounts[10][5];
string login_authentication[4][2] =
{{"user1","111"},{"user2","222"},{"user3","333"},{"user4","444"}};
void authentication();
void open_account();
void menu();
void deposit_amount();
void all_accounts();
void search_acc();
void withdraw_amount();
int main()
{
char
choice;
do
{
system("cls");
cout<<"1 Log in"<<endl;
cout<<"0
Exit"<<endl;
cout<<"Choose
the desired option: ";
cin>>choice;
switch (choice)
{
case
'1':
authentication();
break;
default:
choice='$';
break;
}
}while(choice!='$');
exit(0);
return
0;
}
////////////////// Functions
//////////////////////
///////////////// Menu
/////////////////////////////
void menu()
{
cout<<"1 Open an Account"<<endl;
cout<<"2 Deposit amount"<<endl;
cout<<"3 withdraw amount"<<endl;
cout<<"4 Search All Accounts"<<endl;
cout<<"5 Search an account using CNIC and display its
information"<<endl;
cout<<"0 Exit"<<endl;
cout<<"Choose the desired option (1-5): ";
}
////////////////////////////////////////////////////////
//////////////// Log in Authentication Function
//////////////
void authentication()
{
char
choice;
char
ch;
system("cls");
string
username;
string
password;
int
log_in = 0;
cout<<"User Name: ";
cin>>username;
cout<<"Password:
";
cin>>password;
for(int
i=0; i<4; i++)
{
if(username == login_authentication[i][0] && password ==
login_authentication[i][1])
{
do
{
system("cls");
menu();
cin>>choice;
switch
(choice)
{
case '1':
open_account();
system("cls");
menu();
break;
case '2':
deposit_amount();
system("cls");
menu();
break;
case '3':
withdraw_amount();
system("pause");
break;
case '4':
all_accounts();
system("pause");
break;
case '5':
search_acc();
break;
default:
choice='0';
break;
}
}while(choice !=
'0');
}
else
{
cout<<"Invalid Username
and Password."<<endl;
}
}
}
//////////////////////////////////////////////////////////////
///////////////// Open an Acciunt
////////////////////////////
void open_account()
{
char
ch;
string
acc_num;
string
acc_title;
string
acc_bal;
string
acc_holder_name;
string
acc_holder_cnic;
int
account_num = 1;
if(account_num<=total_accounts)
{
system("cls");
menu();
for(int j=0; j<total_accounts; j++)
{
cout<<endl;
cout<<endl;
cout<<"Account: "<<account_num<<endl;
cout<<"Enter Account Number: ";
cin>>acc_num;
cout<<"Enter Account Title: ";
cin>>acc_title;
cout<<"Enter Account Balance: ";
cin>>acc_bal;
cout<<"Enter Account Holder Name: ";
cin>>acc_holder_name;
cout<<"Enter Account Holder CNIC: ";
cin>>acc_holder_cnic;
accounts[j][0] =
acc_num;
accounts[j][1] =
acc_title;
accounts[j][2] =
acc_bal;
accounts[j][3] =
acc_holder_name;
accounts[j][4] =
acc_holder_cnic;
cout<<"Open another Account.(y/n)?: ";
cin>>ch;
if(ch != 'n')
{
account_num++;
}
else
{
j=10;
}
}
}
else
{
cout<<"Maximum accounts limit reached."<<endl;
}
}
///////////////////////////////////////////////////////////
///////////////////// Deposit Amount
//////////////////////
void deposit_amount()
{
int
current_bal;
string
acc_no;
int
acc_bal;
cout<<endl;
cout<<endl;
cout<<"Enter Account Number: ";
cin>>acc_no;
cout<<"Enter Deposit Amount: ";
cin>>acc_bal;
for(int
j=0; j<total_accounts; j++)
{
if(acc_no == accounts[j][0])
{
string s =
accounts[j][2];
stringstream ss(s);
ss >>
current_bal;
current_bal =
current_bal + acc_bal;
stringstream ss1;
ss1 << current_bal;
accounts[j][2] =
ss1.str();
//cout<<"Amount
Added."<<current_bal<<endl;
//system("pause");
}
}
}
//////////////////////////////////////////////////////////
///////////////////// Withdraw Amount
//////////////////////
void withdraw_amount()
{
int
current_bal;
string
acc_no;
int
acc_bal;
cout<<endl;
cout<<endl;
cout<<"Enter Account Number: ";
cin>>acc_no;
cout<<"Enter Deposit Amount: ";
cin>>acc_bal;
for(int
j=0; j<total_accounts; j++)
{
if(acc_no == accounts[j][0])
{
string s =
accounts[j][2];
stringstream ss(s);
ss >>
current_bal;
current_bal =
current_bal - acc_bal;
stringstream ss1;
ss1 <<
current_bal;
accounts[j][2] =
ss1.str();
//cout<<"Amount
Added."<<current_bal<<endl;
//system("pause");
}
}
}
//////////////////////////////////////////////////////////
////////////////////////// Search all Accounts
/////////////
void all_accounts()
{
for(int
j=0; j<total_accounts; j++)
{
cout<<"Account Number:
"<<accounts[j][0]<<endl;
cout<<"Account Title:
"<<accounts[j][1]<<endl;
cout<<"Account Balance:
"<<accounts[j][2]<<endl;
cout<<"Account Holder Name:
"<<accounts[j][3]<<endl;
cout<<"Account Holder CNIC:
"<<accounts[j][4]<<endl;
}
}
/////////////////////////////////////////////////////////////
////////////////// Search Account by CNIC
//////////////////
void search_acc()
{
string
acc_h_cnic;
cout<<"Enter Account Holder CNIC: ";
cin>>acc_h_cnic;
cout<<endl;
cout<<endl;
for(int
j=0; j<total_accounts; j++)
{
if(acc_h_cnic == accounts[j][4])
{
cout<<"Account Number:
"<<accounts[j][0]<<endl;
cout<<"Account Title:
"<<accounts[j][1]<<endl;
cout<<"Account Balance:
"<<accounts[j][2]<<endl;
cout<<"Account Holder Name:
"<<accounts[j][3]<<endl;
cout<<"Account Holder CNIC:
"<<accounts[j][4]<<endl;
system("pause");
}
}
}
////////////////////////////////////////////////////////////
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nice article .thank you for sharing useful post.
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