c# programming

Question

write a program that will generate simple mathematical expressions that will add, subtract, and multiply two integers from 0 to . the program should ask the user for an answer. if the user answered correctly and after pressing enter, print 'Correct' otherwise print 'Incorrect' and then generate another question.

Vulpes · Answer

Try this: using System; class Program { static void Main() { int x, y; while(true) { Console.Write("Enter first non-negative integer : "); bool isValid = int.TryParse(Console.ReadLine(), out x); if (!isValid || x { Console.WriteLine("Invalid, try again"); } else { break; } } while(true) { Console.Write("Enter second non-negative integer : "); bool isValid = int.TryParse(Console.ReadLine(), out y); if (!isValid || y { Console.WriteLine("Invalid, try again"); } else { break; } } int answer; Console.WriteLine(); Console.Write("{0} + {1} = ", x, y); int.TryParse(Console.ReadLine(), out answer); if (answer == x + y) { Console.WriteLine("Correct"); } else { Console.WriteLine("Incorrect"); } Console.WriteLine(); Console.Write("{0} - {1} = ", x, y); int.TryParse(Console.ReadLine(), out answer); if (answer == x - y) { Console.WriteLine("Correct"); } else { Console.WriteLine("Incorrect"); } Console.WriteLine(); Console.Write("{0} x {1} = ", x, y); int.TryParse(Console.ReadLine(), out answer); if (answer == x * y) { Console.WriteLine("Correct"); } else { Console.WriteLine("Incorrect"); } Console.ReadKey(); } }

kim justin eding · Answer

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c# programming

Answers (2)