Question

C# Create an application that asks the user to enter their new password. The password must be at least 6 characters long. Develop a custom exception handling case that checks for the password length. (hint: use " .Length " built-in method). If the new password is less than 6 characters long the custom exception should output an error message.

Answer 1

SOLUTION-
I have solve the problem in C# code with comments and screenshot for easy understanding :)

CODE-

using System;

namespace ConsoleApp // Project name
{
class Program
{
class InvalidPasswordException : Exception
{

public InvalidPasswordException()
: base(String.Format("Invalid Passwrod, Password length should be greater then 6 letters"))
{

}

}

class Password
{
static void Main(string[] args)
{
while (true)
{
try
{
// read input
Console.Write("Enter password must be at least 6 characters long: ");
string pass = Console.ReadLine();
// check password length
if (validatePassword(pass))
{
Console.WriteLine("Done.");
break;
}
}
catch (InvalidPasswordException ex)
{
Console.WriteLine(ex.Message);
Console.WriteLine("Try again.");
}
}
Console.ReadKey();

}

private static bool validatePassword(string pass)
{
// if password length is less then 6
if (pass.Length < 6)
{
// throw exception
throw new InvalidPasswordException();
}
return true;
}
}
}
}

Output:

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