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// code for a simple bank account program that has 10 accounts as objects
// in an array and will be required to give an a display menu
// with a few options (check balance, deposit, etc.) and randomly generate
// the balances/interest rates.
// I just need a help understanding how the array works with objects in them
// and how to use functions and variables in them.
// If anyone is available for a little while later tonight about 3 hours
// from this post i can send you a little money for a small tutoring lesson
// or if anyone could help for free that would be awesome
#include <iomanip>
#include <iostream>
#include <random>
#include <string>
struct Account {
std::string id;
double balance;
double rate;
};
constexpr int TOTAL_ACCOUNTS = 10;
Account mockAccountGen(Account& acco);
std::string embellishString(std::string& str);
size_t findAccount();
void displayBalance(Account* accounts, size_t index);
void displayID(Account* accounts, size_t index);
void displayRate(Account* accounts, size_t index);
int main()
{
Account accounts[TOTAL_ACCOUNTS] = {};
for(auto& acco : accounts) {
mockAccountGen(acco);
}
// Display menu
int choice {};
do {
std::cout << "\nMock bank account\n";
std::cout << "=================\n";
std::cout << "1) Check balance of your account\n";
std::cout << "2) Print out your account ID\n";
std::cout << "3) Are you curious about interest rate?\n";
std::cout << "4) Exit\nYour choice? ";
std::cin >> choice;
std::cin.ignore();
size_t index {};
switch (choice) {
case 1:
index = findAccount();
displayBalance(accounts, index);
break;
case 2:
index = findAccount();
displayID(accounts, index);
break;
case 3:
index = findAccount();
displayRate(accounts, index);
break;
case 4:
std::cout << "Goodbye, pal...\n";
break;
default:
std::cout << "Choices are from 1 to 4. Need glasses?\n";
break;
}
} while(choice != 4);
return 0;
}
Account mockAccountGen(Account &acco)
{
std::random_device randev{};
std::default_random_engine generator{randev()};
// Generate mock balance in range -1000 - 20000.
std::uniform_real_distribution<> distrBal(-1000, 20000);
acco.balance = distrBal(generator);
// Generate mock interest rate in range 1 - 2
std::uniform_real_distribution<> distrRate(1, 2);
acco.rate = distrRate(generator);
// Generate mock id in range 100000 - 999999 adding a dot
// and a hyphen inside.
std::uniform_int_distribution<> distrId(100000, 999999);
int tmpid = distrId(generator);
acco.id = std::to_string(tmpid);
embellishString(acco.id);
return acco;
}
// Not optimized: dot and hyphen can follow each other.
std::string embellishString(std::string& str)
{
std::random_device randev{};
std::default_random_engine generator{randev()};
std::uniform_int_distribution<> distrDotsHyphs(1, str.length()-2);
str.insert(distrDotsHyphs(generator), 1, '.');
str.insert(distrDotsHyphs(generator), 1, '-');
return str;
}
size_t findAccount()
{
std::cout << "\nPlease, insert your account ID, dot and hyphen included: ";
std::string tmp;
std::getline(std::cin, tmp);
std::cout << "Sorry: no corrispondance for \"" << tmp
<< "\".\nA random one will be choosen :-)\n";
std::random_device randev{};
std::default_random_engine generator{randev()};
std::uniform_int_distribution<> distrInd(0, TOTAL_ACCOUNTS-1);
return size_t(distrInd(generator));
}
void displayBalance(Account* accounts, size_t index)
{
std::cout << "Your current balance is: " << std::fixed
<< std::setprecision(2) << accounts[index].balance << '\n';
}
void displayID(Account* accounts, size_t index)
{
std::cout << "Your current ID is: " << accounts[index].id << '\n';
std::cout << "\n\n(I know, you've been asked of your ID to get your ID...\n"
"Looks really what a Bank could do, doesn't it?)\n\n";
}
void displayRate(Account* accounts, size_t index)
{
std::cout << "Your current interest rate is: " << std::fixed
<< std::setprecision(2) << accounts[index].rate << '\n';
}
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