help finishing program

[efigen]

Under class SavingsAccount i have a variable called balance, under the main function i created a switch statement, and every time i choose to deposit into savings account it goes under balance. But what i am trying to do is be able to choose to deposit into savings account more than once. So if i choose deposit and place $100 as balance and then i want to choose deposit again and place
$50, how can i make it that the balance ends up to $150. Also if i want to make more deposits. Thanks.

//Esteban Efigenio
//Assignment 10 Course Project

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


class BankAccount {   //name of class
public:
   double balance;
   double withdrawal;
 
   int MonthlyDepCount;
   int MonthlyWdCount;
   float AnnualIntRate;
   double MonthlySvcCh;
   double MonthlyIntRate;
   double MonthlyInt;
             
   BankAccount(){balance=0;}
       ~BankAccount(){};
   virtual void withdraw ();
   virtual void deposit();
   virtual void calcInt();
   virtual void monthlyProc(){
     }
};


class savingsAccount: public BankAccount {
public:
 
    savingsAccount(double balance=0){};
   ~savingsAccount(){};
  

 void deposit()
   {
        MonthlyDepCount=0;
   cout<<"Enter amount of money to deposit into Savings Account:"<<endl;
   cin>>balance ;
   if(balance>=25)
       {Active==1;
   MonthlyDepCount+=1;
   }
   else
   {
       cout<<"Account is Inactive"<<endl;
       system("pause");
   }
   }
   void withdraw()
   {
      MonthlyWdCount=0;
    cout<<"Enter amount of money to withdraw from Savings Account:"<<endl;
    cin>>withdrawal;
    if(withdrawal>balance || Active!=1)
        {
            cout<<"Not sufficient Funds"<<endl;
            system("pause");
        }
    else
        {
        balance-=withdrawal;
       
        MonthlyWdCount+=1;
       
        }
   
   }
 
 

   void monthlyProc()
   {
       MonthlySvcCh=0;
        cout<<"Service Charges:\t";
  if (MonthlyWdCount<4)
  cout<<"0.0";
  else (MonthlySvcCh==1+MonthlyWdCount);
  {
    cout<<MonthlySvcCh;
  }
   }

   void calcInt()
   {
       float AnnualIntRate=.05;
       balance=balance;
     MonthlyIntRate = AnnualIntRate / 12;
    MonthlyInt = balance * MonthlyIntRate;
    double balance1 = balance + MonthlyInt;
    cout<<"Ending Balance:\t"<<setprecision(2)<<fixed<<balance1<<endl;
      
   }

protected:             
   enum Status
   {
       Active = 1,
       Inactive
   };
   Status status;
};

class checkingAccount : public BankAccount {
public:
 
    checkingAccount(double balance=0){};
   ~checkingAccount(){};
 

    void deposit ()
    {
        MonthlyDepCount=0;
    cout<<"Enter amount of money to deposit into Checking Account:"<<endl;
    cin>>balance;
    MonthlyDepCount+=1;
    }

    void withdraw ()
    {
        MonthlyWdCount=0;
        if (balance<=0)
            {
                cout<<"You have no funds a service charge of $15.00 will be charged"<<endl;
            balance-=15;
            system("pause");
       
        }
        else
    cout<<"Enter amount of money to withdraw from Checking Account:"<<endl;
    cin>>withdrawal;
    MonthlyWdCount+=1;
    }
   

   void monthlyProc(){
       MonthlyWdCount+=1;
       if (balance<=0)
           {
               MonthlySvcCh=15;
               cout<<"Service Charges:\t";
               cout<<MonthlySvcCh;
               balance-=MonthlySvcCh;
       }
       else
       {
       MonthlySvcCh=5+ .10;
      
        cout<<"Service Charges:\t";
        cout<<MonthlySvcCh;
       
    double totWithdraw=withdrawal+MonthlySvcCh;
    balance-=totWithdraw;
       }
   }
   void calcInt()
   {
       if (balance<=0)
           cout<<"Ending Balance:\t"<<setprecision(2)<<fixed<<"-15.00"<<endl;
       else
       {
       float AnnualIntRate=.05;
       balance=balance;
     MonthlyIntRate = AnnualIntRate / 12;
    MonthlyInt = balance * MonthlyIntRate;
    double balance1 = balance + MonthlyInt;
    cout<<"Ending Balance:\t"<<setprecision(2)<<fixed<<balance1<<endl;
       }
   }


protected:
   double fees;
};





void BankAccount::withdraw () {}
 
 
void BankAccount::deposit () {}

void BankAccount::calcInt (void) {
}

char choice;

void main()
{
      BankAccount a;
      savingsAccount sa;
      checkingAccount ca;
  
 
  
      cout<<"\n\n\n";
      cout<<"*********WELCOME TO EFIGENIO'S BANK ACCOUNT SYSTEM***********"<<endl;
      cout<<"\n\n";
   
    
   

     char choice;
     mainmenu:
  
        cout<<"                    MAIN MENU"<<endl;
         cout<<""<<endl;
         cout<<""<<endl;
         cout<<"\t\t1:  Savings Account Deposit"<<endl;
         cout<<"\t\t2:  Checking Account Deposit"<<endl;
         cout<<"\t\t3:  Savings Account Withdrawal"<<endl;
         cout<<"\t\t4:  Checking Account Withdrawal"<<endl;
         cout<<"\t\t5:  Update and Display Statistics:"<<endl;
         cout<<"\t\t6:  EXIT:"<<endl;
         cout<<"Make Selection using the numbers (1-6)"<<endl;
         cin>>choice;
    {
  
    {
           switch (choice)
  
            {
                  case '1':
                     sa.deposit();
                     goto mainmenu;
                  case '2':
                     ca.deposit();
                     goto mainmenu;
                  case '3':
                     sa.withdraw();
                     goto mainmenu;
                  case '4':
                     ca.withdraw();
                     goto mainmenu;
                  case '5':
                      cout<<"SAVINGS ACCOUNT MONTHLY STATISTICS:"<<endl;
                  
              

                     cout<<"Withdrawals:\t"<<sa.MonthlyWdCount<<endl;
                      cout<<"Deposits:\t"<<sa.MonthlyDepCount<<endl;
                      sa.monthlyProc();
                      cout<<endl;
                      sa.calcInt();            
                      system("pause");
                      cout<<endl;
                    
                      cout<<"CHECKING ACCOUNT MONTHLY STATISTICS:"<<endl;
                      cout<<"Withdrawals:\t"<<ca.MonthlyWdCount<<  endl;
                      cout<<"Deposits:\t"<<ca.MonthlyDepCount<<endl;
                      ca.monthlyProc();
                      cout<<endl;
                      ca.calcInt();        
                      system("pause");
                   

                  case'6':
                    
                                     
                     default:
                     cout<<"Invalid menu item...Please re-enter your choice"<<endl;
                     break;
                     system("pause");
            }
    }
        
    }
 
     cout<<endl;
 
   
}

[DSLq5Di1]

This should be obvious no? store input in a temporary variable, then add that to your balance..

[shacktar]

This code overwrites the previous balance:

cout<<"Enter amount of money to deposit into Savings Account:"<<endl;
cin>>balance ;

What you should do instead is read in the new deposit, and then add that deposit to the balance:

double newDeposit;
cout<<"Enter amount of money to deposit into Savings Account:"<<endl;
cin>>newDeposit;
...
balance += newDeposit;

Also if i want to make more deposits

Simply calling sa.deposit(); should let you do the next deposit.

Also, goto has been deprecated since you can always use loops to do the same thing.

Consider using this instead of goto:

bool finished = false;

do
{
     char choice;
  
     cout<<"                    MAIN MENU"<<endl;
     ... //rest of main menu goes here
     cin>>choice;

     switch (choice)
     {
          case '1':
               sa.deposit();
               break; //no need for goto, let the loop handle it
          case '2':
               ca.deposit();
               break; //no need for goto, let the loop handle it

          ... //other cases

          case '6':
               finished = true;
               break;
          default:
          ... //default case
     }
} while(!finished);