Introduction
I have used Visual Studio 2012 for debugging purpose. But you can use any version of visul studio as per your availability..
Write a C# program to check the username and password
using System;
public class Stringexercise
{
public static void Main()
{
string username, password;
int ctr = 0;
do
{
Console.Write("Input a username: ");
username = Console.ReadLine();
Console.Write("Input a password: ");
password = Console.ReadLine();
if (username != "abcd" || password != "1234")
ctr++;
else
ctr = 1;
}
while ((username != "admin" || password != "123456") && (ctr != 3));
if (ctr == 3)
Console.WriteLine("\nLogin attemp three or more times. Try later!");
else
Console.WriteLine("\nThe password entered successfully!");
Console.ReadLine();
}
}
Result
