Question

Define the class bankAccount to implement the basic properties of a bank account. An object of this class should store the following data: Account holder’s name (string), account number (int), account type (string, checking/saving), balance (double), and interest rate (double). (Store interest rate as a decimal number.) Add appropriate member functions to manipulate an object. Use a static member in the class to automatically assign account numbers. Also, declare an array of 10 components of type bankAccount to process up to 10 customers and write a program to illustrate how to use your class. Example output is shown below: 1: Enter 1 to add a new customer. 2: Enter 2 for an existing customer. 3: Enter 3 to print customers data. 9: Enter 9 to exit the program. 1 Enter customer's name: Dave Brown Enter account type (checking/savings): checking Enter amount to be deposited to open account: 10000 Enter interest rate (as a percent): .01 1: Enter 1 to add a new customer. 2: Enter 2 for an existing customer. 3: Enter 3 to print customers data. 9: Enter 9 to exit the program. 3 Account Holder Name: Dave Brown Account Type: checking Account Number: 1100 Balance: $10000.00 Interest Rate: 0.01% ***************************** 1: Enter 1 to add a new customer. 2: Enter 2 for an existing customer. 3: Enter 3 to print customers data. 9: Enter 9 to exit the program.

C++ Programing

Answer 1

//Comment if you have doubts. and like the answer.

Account number series starts from 1100 .

//BankAccount.h
#ifndef BANK_ACCOUNT__H
#define BANK_ACCOUNT__H
#include<iostream>
using namespace std;
class bankAccount{
   public:
   //public fields.
       string accountHolderName;
       int accountNumber;
       string accountType;
       double balance;
       double interestRate;
       //static field to set account number series.
       static int accountNumSeries;
   public:
   //constructor to intilize fields.
       bankAccount(){
          
           accountHolderName = "";
           accountNumber = accountNumSeries;
           accountType = "";
           balance = 0;
           interestRate = 0.0;
           accountNumSeries++;
       }
       //method to withdraw given amount
       void withdraw(double amount)
       {
           //check amount is valid amount.
           if(amount <= 0)
           {
               cout<<"\nTransaction failed: invalid amount entered( > 0) to withdraw.\n";
               return;
           }
           //check for available funds.
           if(amount > balance)
           {
               cout<<"\nTransaction failed: Insufficient amount of funds in account.\n";
               return;
           }
           //if valid amount then remove from account balance
           balance-=amount;
           cout<<"\nTranscation Success: Available funds in account : "<<balance<<endl;
       }
       //depsit given amount in account.
       void deposit(double amount)
       {
           //check valid amount
           if(amount <= 0)
           {
               cout<<"\nTransaction failed: Please enter valid amount( > 0) to withdraw.\n";
               return;
           }
           //add to balance if valid.
           balance+=amount;
           cout<<"\nTranscation Success: Available funds in account : "<<balance<<endl;
       }
       //method to print all info of account.
       void printDetails()
       {
          
           cout << "\nAccount Holder Name : "<< accountHolderName;
           cout << "\nAccount Type : "<< accountType;
           cout << "\nAccount Number : " << accountNumber;
           cout << "\nBalance : " << balance;
           cout << "\nInterest Rate : " << interestRate<<"%";
           cout << "\n************************************\n";
       }
};
int bankAccount::accountNumSeries=1100;
#endif

//main.cpp
#include "BankAccount.h"
#include<limits>
//method to print menu.
void printMenu()
{
   cout<<"\n1: Enter 1 to add a new customer."
       <<"\n2: Enter 2 for an existing customer."
       <<"\n3: Enter 3 to print customers data."
       <<"\n9: Enter 9 to exit the program. "
       <<"\nEnter your choice: ";
}
//method that takes prompt to be printed and returns double value of amount.
//helps in getting amount as input for withdrawl,deposit .
double getAmountAsInput(string prompt)
{
   cout<<"\n"<<prompt;
   double balance;
   cin >> balance;
   return balance;
}
//main mehtod.
int main()
{
   int totalAccounts = 10;
   bankAccount accounts[totalAccounts];
   int choice = 0;
   int curIndex = 0;
   string accountHolderName;
   int accountNumber;
   string accountType;
   double balance;
   double interestRate;
   int subChoice;
   //till user quits.
   while(choice != 9)
   {
       printMenu();
       //get choice.
       cin >> choice ;
      
       switch(choice)
       {
           //if choice is to add new user.
           case 1:
           {
               if(curIndex == totalAccounts)
               {
                   cout<<"\nAccounts Limit Reached. \n";
               }
               else
               {
                   //clear any characters in cin buffer.since we are using getline()
                   //method to get account holder name.
                   //getline() takes any trailing characters in cin buffer.
                   cin.clear();
                   cin.ignore(numeric_limits<streamsize>::max(),'\n');
                   //get all fields
                   cout<<"\nEnter customer's name: ";
                   getline(cin,accountHolderName);
                   cout<<"\nEnter account type (checking/savings): ";
                   cin >> accountType;
                   balance = getAmountAsInput("Enter amount to be deposited to open account: ");
                   cout<<"\nEnter interest rate (as a percent): ";
                   cin >> interestRate;
                   //initilize fields.
                   accounts[curIndex].accountHolderName = accountHolderName;
                   accounts[curIndex].accountType = accountType;
                   accounts[curIndex].deposit(balance);
                   accounts[curIndex].interestRate = interestRate;
                   //increment array insertion index.
                   curIndex++;
               }
               break;
           }
           case 2:
           {
               //if option 2 selected get existing account number.
               //if account number is found, then asks for withdrawl,deposit or show account info choices.
               cout<<"\nEnter Existing customer account number : ";
               cin >> accountNumber;
               bool isFound = false;
               for(int i = 0;i<curIndex;i++)
               {
                  
                   if(accounts[i].accountNumber == accountNumber)
                   {
                       cout<<"\nHi: "<<accounts[i].accountHolderName<<", Please Choose any one of the options below:\n";
                       isFound = true;
                       cout<<"\nEnter 1. to deposit amount";
                       cout<<"\nEnter 2. to withdraw amount";
                       cout<<"\nEnter 3. to see account info";
                       cin >> subChoice;
                       if(subChoice == 1)
                       {
                           balance = getAmountAsInput("Enter amount to be deposited : ");
                           accounts[i].deposit(balance);
                       }
                       else if(subChoice == 2)
                       {
                           balance = getAmountAsInput("Enter amount to be withdrawed : ");
                           accounts[i].withdraw(balance);
                       }
                       else if(subChoice == 3)
                       {
                           accounts[i].printDetails();
                       }
                       else
                       {
                           cout<<"\nError: Invalid Choice.\n";
                       }
                   }
               }
               //if entered acc number not found print not found.
               if(isFound == false)
               {
                   cout<<"\nSorry.Account Number Not Found.\n";
               }
               break;
           }
           case 3:
           {
               for(int i = 0;i<curIndex;i++)
               {
                   accounts[i].printDetails();
               }
               break;
           }
           case 9:
           {
               cout<<"\nQuitting....";
               break;
           }
           default:
           {
               cout<<"\nInvalid choice. Try again\n";
           }
       }
      
   }
   return 0;
}