account.cpp

来自「里面有很多关于编程的实用例子」· C++ 代码 · 共 71 行

// Account.cpp
// Member-function definitions for class Account.
#include "Account.h" // Account class definition

// Account constructor initializes attributes
Account::Account( int theAccountNumber, int thePIN, 
   double theAvailableBalance, double theTotalBalance )
   : accountNumber( theAccountNumber ),
     pin( thePIN ),
     availableBalance( theAvailableBalance ),
     totalBalance( theTotalBalance )
{
   // empty body
} // end Account constructor

// determines whether a user-specified PIN matches PIN in Account
bool Account::validatePIN( int userPIN ) const
{ 
   if ( userPIN == pin )
      return true;
   else
      return false;
} // end function validatePIN

// returns available balance
double Account::getAvailableBalance() const
{
   return availableBalance;
} // end function getAvailableBalance

// returns the total balance
double Account::getTotalBalance() const
{
   return totalBalance;
} // end function getTotalBalance

// credits an amount to the account
void Account::credit( double amount )
{
   totalBalance += amount; // add to total balance
} // end function credit

// debits an amount from the account
void Account::debit( double amount )
{
   availableBalance -= amount; // subtract from available balance
   totalBalance -= amount; // subtract from total balance
} // end function debit

// returns account number
int Account::getAccountNumber() const
{
   return accountNumber;  
} // end function getAccountNumber


/**************************************************************************
 * (C) Copyright 1992-2009 by Deitel & Associates, Inc. and               *
 * Pearson Education, Inc. All Rights Reserved.                           *
 *                                                                        *
 * DISCLAIMER: The authors and publisher of this book have used their     *
 * best efforts in preparing the book. These efforts include the          *
 * development, research, and testing of the theories and programs        *
 * to determine their effectiveness. The authors and publisher make       *
 * no warranty of any kind, expressed or implied, with regard to these    *
 * programs or to the documentation contained in these books. The authors *
 * and publisher shall not be liable in any event for incidental or       *
 * consequential damages in connection with, or arising out of, the       *
 * furnishing, performance, or use of these programs.                     *
 **************************************************************************/