Question

Either know this is just a homework assignment please if you dont know the answer or if you dont check that its right please dont work on this serious answers only please and thank you and no java only visual studio c++ please.

Q1 : Classes and Objects 1. Create a class definition for an object called Account. Add a constructor and destructor to it. 2. Add 2 internal data member of char or string type which should be named firstName and lastName. 3. Then add two methods debitFrom which takes a double as a call parameter and creditTo which also takes a double data type. 4. Add an internal to the Account class called currentBalance of type double. 5. Instantiate an object of type Account with a starting balance of $100.00 belonging to a customer by the name of John Smith 6. Show how you would create const members functions in this class – what is the benefit of such member functions.

Answer 1

//Account.cpp

//include header files for basic io operations

#include<iostream>
#include<string>
using namespace std;

class Account
{
private:
   string firstName;
   string lastName;
   double currentBalance;
public:

   Account()
   {
       firstName="NA";
       lastName="NA";
       currentBalance=0;
   }

   Account(string fName, string lName, double bal)
   {
       firstName=fName;
       lastName=lName;
       currentBalance=bal;
   }

   /*constant member functions
   for the private data of account class
   const member functions guarantees that the
   private data is not midifiable
   */
   string getFirstName() const
   {
       return firstName;
   }
   string getLastName() const
   {
       return lastName;
   }
   double getCurrentBalance() const
   {
       return currentBalance;
   }

   /* member function to debit
   from current balance*/
   void debitFrom(double amt)
   {
       currentBalance-=amt;
   }
   /*member function to credit amount
   to current balance*/
   void creditTo(double amt)
   {
       currentBalance+=amt;
   }
};//end of Account class

int main()
{

   //5.Instantiate the Account class object
   Account act("John","Smith",100);

   cout<<"Account Name :"<<act.getFirstName()
       <<" "<<act.getLastName()<<endl;
   cout<<"Balance : $"<<act.getCurrentBalance()<<endl;

   system("pause");
   return 0;
}

Sample Output:

Account Name :John Smith
Balance : $100