fig02_07.cpp

《c＋＋大学教程》源码

// Fig. 2.7: fig02_07.cpp
// Class average program with counter-controlled repetition.
#include <iostream>

using std::cout;
using std::cin;
using std::endl;

// function main begins program execution
int main()
{
   int total;        // sum of grades input by user
   int gradeCounter; // number of grade to be entered next
   int grade;        // grade value
   int average;      // average of grades

   // initialization phase
   total = 0;          // initialize total
   gradeCounter = 1;   // initialize loop counter

   // processing phase
   while ( gradeCounter <= 10 ) {       // loop 10 times
      cout << "Enter grade: ";          // prompt for input
      cin >> grade;                     // read grade from user
      total = total + grade;            // add grade to total
      gradeCounter = gradeCounter + 1;  // increment counter
   }

   // termination phase
   average = total / 10;                // integer division

   // display result
   cout << "Class average is " << average << endl;  

   return 0;   // indicate program ended successfully

} // end function main



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 * (C) Copyright 1992-2003 by Deitel & Associates, Inc. and Prentice      *
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