Proposed exercise
Write a program to ask the user for his/her login and his/her password (both must be integer numbers) and repeat it as many times as necessary, until the entered login is "12" and the password is "1234".
Output
Solution
using System; public class Password { public static void Main() { int user, pass; do { Console.Write("Enter a user: "); user = Convert.ToInt32(Console.ReadLine()); Console.Write("Enter a password: "); pass = Convert.ToInt32(Console.ReadLine()); if ((user != 12) || (pass != 1234)) Console.WriteLine("Login Error"); } while ( (user != 12) || (pass != 1234)); Console.WriteLine("Login successful"); } }