Initialize total to zero



Initialize counter to zero







Input the first grade (possibly the sentinel)







While  the user has not as yet entered the sentinel 



          Add this grade into the running total 



          Add one to the grade counter 



          Input the next grade (possibly the sentinel )







If  the counter is not equal to zero



        Set the average to the total divided by the counter 



        Print the average



Else  



       Print “No grades were entered “



 

int total = 0,    //مجموع الدرجات 



     gradeCounter = 0, // عدد الدرجات المدخلة



     gradeValue;        // قيمة الدرجة  







double average;   // معدل الدرجات  



//integer جملة البداية وجملة التحويل إلى  



Console.Write("Enter Integer Grade, -1 to Quit: ");



gradeValue = Int32.Parse( Console.ReadLine());



// -1 مستمر حتى إدخال رقم loop 



while ( gradeValue != -1)



     {



           //total إضافة القيمة إلى  



           total = total + gradeValue;



           //gradeCounter إضافة 1 للعداد  



            gradeCounter = gradeCounter + 1;



            // جملة التذكير للمستخدم وجملة التحويل 



            Console.Write("Enter Integer Grade, -1 to Quit: ");



            gradeValue = Int32.Parse( Console.ReadLine());



       }    // end while 



if ( gradeCounter != 0)



       {



             // حساب المعدل ثم طباعته  



              average = (double ) total / gradeCounter;



              Console.WriteLine("\nClass average is {0} :", average);



        }



else 



        Console.WriteLine("\nNo grades were entered .");