private static Random random = new Random();
public static void Main(String[] args)
String[] userNames = new String[5];
int[] passwords = new int[5];
Console.WriteLine("Username,Passwords");
for (index = 0 ; index <= userNames.Length - 1 ; index += 1)
userNames[index] = userNames[index]+ (char) (random.Next(25) + 65);
userNames[index] = userNames[index] + (char) (random.Next(25) + 65);
userNames[index] = userNames[index] + (char) (random.Next(25) + 65);
passwords[index] = random.Next(900) + 100;
Console.WriteLine(userNames[index] + "," + passwords[index]);
while (attempts > 0 && Right == false)
Console.WriteLine("Please enter you username: ");
Console.WriteLine("Please enter your password ");
while (index < userNames.Length && Right == false)
if (userNames[index] == userName && passwords[index] == password)
if (attempts > 0 && Right == false)
Console.WriteLine("Sorry. Access denied");
Console.WriteLine("Welcome to the system.");
Console.WriteLine("Sorry acess denied");
private static void input(out double result)
while (!double.TryParse(Console.ReadLine(), out result));
private static void input(out int result)
while (!int.TryParse(Console.ReadLine(), out result));
private static void input(out Boolean result)
while (!Boolean.TryParse(Console.ReadLine(), out result));
private static void input(out string result)
result = Console.ReadLine();