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Login Verification Program in C#

In this task, you'll create a simple login verification program using C#. The program will continuously ask the user to enter their login and password until the correct values are entered. The correct login is 12, and the correct password is 1234. This task will help you practice using loops and conditional statements to handle user input validation and control the flow of the program.



Group

C# Flow Control Basics

Objective

The objective of this exercise is to write a C# program to prompt the user to enter their login and password (both must be integer numbers) and repeat the prompt as many times as necessary until the entered login is "12" and the password is "1234".

Example C# Exercise

 Copy C# Code 
// First and Last Name: John Doe

using System;

namespace LoginVerification
{
    class Program
    {
        static void Main(string[] args)
        {
            // Declare variables for login and password
            int login, password;

            // Loop to keep asking for login and password until correct values are entered
            do
            {
                // Prompt user to enter login
                Console.Write("Enter login: ");
                login = int.Parse(Console.ReadLine()); // Read and convert the login to an integer

                // Prompt user to enter password
                Console.Write("Enter password: ");
                password = int.Parse(Console.ReadLine()); // Read and convert the password to an integer

                // Check if the entered login and password are correct
                if (login != 12 || password != 1234)
                {
                    Console.WriteLine("Incorrect login or password. Try again.");
                }

            } while (login != 12 || password != 1234); // Continue prompting until the correct login and password are entered

            // When correct login and password are entered, display success message
            Console.WriteLine("Login successful!");
        }
    }
}

 Output

Enter login: 15
Enter password: 1234
Incorrect login or password. Try again.
Enter login: 12
Enter password: 5678
Incorrect login or password. Try again.
Enter login: 12
Enter password: 1234
Login successful!

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