Write a program that maintains the monthly balance of a bank account. This accou

Question

Write a program that maintains the monthly balance of a bank account. This account can have one trasaction a month, either withdrawal or a deposit. The program will also keep track of the interest that is earned each month. Interest is computed at the b eginning of the month, before the deposit or withdrawal is made. The program will read from the keyboard the name of the account holder, the starting balance of the bank account and the interest rate. The program will continiu computing interest and asking for either a deposit amount or a withdrawal amount until the user indicates he or she wants to quit the program. Make sure the account does not have a negative balance. If a withdrawal gives a negative balance state that fact and end the program (Use two tests in the loop). Create a menu prompt: it will have 3 choices - deposit, withdrawal, or end program.

Explanation / Answer

Program:

#include <iostream>

#include <string>

using namespace std;

//BankAccount class declarations

class BankAccount

{

//data members

private:

string customerName;

string customerID;

double customerBalance;

double interestrate;

public:

//constructor and methods are declared as public

BankAccount(string, string, double, double);

string getCustomerName();

string getCustomerID();

double getCustomerBalance();

double getinterestrate();

void withdraw(double amount);

void deposit(double amount);

};

//parameterized constructor BankAccount() that takes two string

//parametes and one double parameter. These are used to initialize the

//variables

BankAccount::BankAccount(string name, string ID, double balance,double rate)

{

customerName = name;

customerID = ID;

customerBalance = balance;

interestrate=rate;

}

//getCustomerName(): returns the customer's name

string BankAccount::getCustomerName()

{

return customerName;

}

//getCustomerID(): returns the customer's ID

string BankAccount::getCustomerID()

{

return customerID;

}

//getCustomerBalance(): returns the customer's account balance

double BankAccount::getCustomerBalance()

{

return customerBalance;

}

//getCustomerBalance(): returns the customer's account balance

double BankAccount::getinterestrate()

{

return interestrate;

}

//withdraw() takes double as parameter and deducts the parameter

//amount from the current balance

void BankAccount::withdraw(double amount)

{

customerBalance -=amount;

}

//deposit() takes double as parameter and adds the parameter

//amount from the current balance

void BankAccount::deposit(double amount)

{

customerBalance +=amount;

}

//main function

int main()

{

//declare the string, character, integer and double variables

string name, id;

double amount,rate;

char conti;

int choice;

//display the header

cout<<"Welcome to XXXX Bank"<<endl<<endl;

//prompt the user for input details:

cout<<"Customer please enter the prompted details: "<<endl;

cout<<"Customer's Name: ";

cin>>name;

cout<<"Customer's Account ID: ";

cin>>id;

cout<<"Initial balance to deposit: $";

cin>>amount;

if(amount<0)

{

cout<<"Error.Initial balance to deposit: $";

cin>>amount;

}

cout<<"Enter rate of interest:$";

cin>>rate;

amount+= amount*rate/100;

//create an object of the BankAccount class

BankAccount bacc(name, id, amount,rate);

cout<<endl;

//loop to display menu and perform the operation as per

//user request

do

{

//menu

cout<<"Transactions menu"<<endl;

cout<<"1. Deposit"<<endl;

cout<<"2. Withdraw"<<endl;

cout<<"3. Print Details"<<endl;

cout<<"4. Exit"<<endl;

cout<<"Enter your choice of operation: ";

cin>>choice;

//depending on the user input choice value

//switch to respective operation

switch(choice)

{

//prompts the user for the amount to deposit and

//calls the deposit method by passing user amount.

//Prints the current balance

case 1:

cout<<"Enter the amount to deposit: $";

cin>>amount;

bacc.deposit(amount);

cout<<"Amount of $"<<amount<<" is deposited successfully!"<<endl;

cout<<"Current balance: $"<<bacc.getCustomerBalance()<<endl<<endl;

break;

//prompts the user for the amount to withdraw and

//calls the withdraw method by passing user amount.

//Prints the current balance.

case 2:

cout<<"Enter the amount to withdraw: $";

cin>>amount;

bacc.withdraw(amount);

cout<<"Amount of $"<<amount<<" is withdrawn successfully!"<<endl;

cout<<"Current balance: $"<<bacc.getCustomerBalance()<<endl<<endl;

break;

//prints all the customer details along with the current balance.

case 3:

cout<<"Your account details are: "<<endl;

cout<<"Customer's Name: "<<bacc.getCustomerName()<<endl;

cout<<"Customer's Account ID: "<<bacc.getCustomerID()<<endl;

cout<<"Account Balance: $"<<bacc.getCustomerBalance()<<endl<<endl;

break;

case 4:

exit(0);

default:

cout<<"Please enter valid operation number."<<endl<<endl;

}

cout<<"Would you like perform another transaction? ('y' /'Y')";

cin>>conti;

}while(conti=='y' || conti=='Y');

system("pause");

return 0;

}

Sample output:

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