lmarkov

Sum Of Integer Numbers

Nov 30th, 2012
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C# 1.50 KB | None | 0 0
  1. /*
  2.  * Write a program that reads 3 integer numbers from the console and prints their sum.
  3. */
  4.  
  5. using System;
  6.  
  7. class SumOfIntegerNumbers
  8. {
  9.     static void Main()
  10.     {
  11.         int number1, number2, number3, sum;
  12.         string errorInvalidInt = "Invalid input! Please enter value between " + int.MinValue + " and " + int.MaxValue + "!\n";
  13.         Console.WriteLine("Enter value of number 1: ");
  14.         while(!(int.TryParse(Console.ReadLine(), out number1) && number1 >= int.MinValue && number1 <= int.MaxValue))
  15.         {
  16.             Console.WriteLine(errorInvalidInt + "\r\nEnter value of number 1: ");
  17.         }
  18.         Console.WriteLine("Enter value of number 2: ");
  19.         while (!(int.TryParse(Console.ReadLine(), out number2) && number2 >= int.MinValue && number2 <= int.MaxValue))
  20.         {
  21.             Console.WriteLine(errorInvalidInt + "\r\nEnter value of number 2: ");
  22.         }
  23.         Console.WriteLine("Enter value of number 3: ");
  24.         while (!(int.TryParse(Console.ReadLine(), out number3) && number3 >= int.MinValue && number3 <= int.MaxValue))
  25.         {
  26.             Console.WriteLine(errorInvalidInt + "\r\nEnter value of number 3: ");
  27.         }
  28.         checked
  29.         {
  30.             sum = number1 + number2 + number3;
  31.         }
  32.  
  33.         Console.WriteLine("{0} + {1} + {2} = {3}", number1, number2, number3, sum);
  34.         Console.WriteLine("The sum of numbers {0}, {1} and {2} is : {3}", number1, number2, number3, sum);
  35.         Console.WriteLine();
  36.         Main();
  37.     }
  38. }
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