Question

Design a class that contains:

we have to make 3 files header file , one .cpp file for function and one more main cpp file

9.3 (The Account class) Design a class named Account that contains:

• An int data field named id for the account.

• A double data field named balance for the account.

• A double data field named annualInterestRate that stores the current interest rate.

• A no-arg constructor that creates a default account with id 0, balance 0, and annualInterestRate 0.

• The accessor and mutator functions for id, balance, and annualInterestRate.

• A function named getMonthlyInterestRate() that returns the monthly interest rate.

• A function named withdraw(amount) that withdraws a specified amount from the account.

• A function named deposit(amount) that deposits a specified amount to the account.

Draw the UML diagram for the class. Implement the class. Write a test program that creates an Account object with an account ID of 1122, a balance of 20000, and an annual interest rate of 4.5%. Use the withdraw function to withdraw $2500, use the deposit function to deposit $3000, and print the balance, the monthly interest.

please have the code to copy. Thnaks

Answer 1

Thanks for the question.
Here is the completed code for this problem. Comments are included so that you understand whats going on. Let me know if you have any doubts or if you need anything to change.
Thank You !!
========================================================================================

#ifndef ACCOUNT_H
#define ACCOUNT_H

class Account
{
   public:
       Account();
       Account(int,double,double);
       int getID()const;
       double getBalance() const;
       double getAnnualInterest() const;
       double getMonthlyInterestRate() const;
       void withdraw(double);
       void deposit(double);
      
   private:
       int id;
       double balance;
       double annualInterestRate;
      
};

#endif

========================================================================================

#include "Account.h"

   Account::Account(){
       this->id=0;
       this->balance=0;
       this->annualInterestRate=0.0;
   }
   Account::Account(int id,double bal,double interest){
       this->id=id;
       this->balance=bal;
       this->annualInterestRate=interest;
   }
   int    Account::getID()const{
   return this->id;
   }
   double    Account::getBalance() const{
   return this->balance;
   }
   double    Account::getAnnualInterest() const{
   return this->annualInterestRate;
   }
   double    Account::getMonthlyInterestRate() const{
   return this->annualInterestRate/12.0;
   }
   void    Account::withdraw(double amount){
       this->balance-=amount;
   }
   void    Account::deposit(double amount){
       this->balance+=amount;
   }

========================================================================================

#include <iostream>
#include "Account.h"
using namespace std;

int main() {
   Account account = Account(1122,20000,4.5);
   cout<<"Account ID: "<<account.getID()<<", Balance: $"<<account.getBalance()<<endl;
   account.withdraw(2500);
   cout<<"Account ID: "<<account.getID()<<", Balance: $"<<account.getBalance()<<endl;
   account.deposit(3000);
   cout<<"Account ID: "<<account.getID()<<", Balance: $"<<account.getBalance()<<endl;
  
   return 0;
}

========================================================================================

UML Diagram