interestcalculator.cpp

C++大学简明教程,解压就行没有密码。希望对大家有用

// Exercise 8.11: InterestCalculator.cpp
// Calculate the total value of an investment after verifying input.
#include <iostream> // required to perform C++ stream I/O
#include <iomanip> // required for parameterized stream manipulators
#include <cmath>   // required to use the C++ math library functions

using namespace std; // for accessing C++ Standard Library members

// function main begins program execution
int main()
{
   // define variables
   double principal; // principal
   double rate;      // interest rate
   int years;        // investment duration

   // prompt the user for and input principal, interest rate
   // and investment duration
   cout << "\nEnter principal: ";
   cin >> principal; // get principal

   cout << "Enter interest rate: ";
   cin >> rate; // get interest rate

   cout << "Enter number of years for deposit: ";
   cin >> years; // get years for deposit

   // display header for yearly balances
   cout << "\n" << left << setw( 10 ) << "Year"
        << "Amount on Deposit" << endl;

   // set the format for displaying dollar values
   cout << fixed << setprecision( 2 );

   // calculate the total balance for each year
   for ( int count = 1; count <= years; count++ )
   {
      // calculate balance at end of current year
      double amount =
         principal * pow( ( 1 + rate / 100 ), count );

      // display year and balance
      cout << setw( 10 ) << count << "$" << amount << endl;
   } // end for

   cout << "\n"; // insert newline for readability

   return 0; // indicate that program ended successfully

} // end function main


 /**************************************************************************
  * (C) Copyright 1992-2005 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.                     *
  **************************************************************************/