
C# Sharp Exercises: Test a password
C# Sharp Basic Data Types: Exercise-3 with Solution
Write a C# Sharp program that takes userid and password as input (type string). After 3 wrong attempts, user will be rejected.
Sample Solution:-
C# Sharp Code:
using System;
public class Exercise3
{
public static void Main()
{
string username, password;
int ctr = 0,dd=0;
Console.Write("\n\nCheck username and password :\n");
Console.Write("N.B. : Defaule username and password is : username and password\n");
Console.Write("---------------------------------\n");
do
{
Console.Write("Input a username: ");
username = Console.ReadLine();
Console.Write("Input a password: ");
password = Console.ReadLine();
if( username == "username" && password == "password" )
{
dd=1;
ctr=3;
}
else
{
dd=0;
ctr++;
}
}
while (( username != "username" || password != "password" )
&& (ctr != 3));
if (dd == 0)
{
Console.Write("\nLogin attemp more than three times. Try later!\n\n");
}
else
if(dd==1)
{
Console.Write("\nPassword entered successfull!\n\n"); }
}
}
Sample Output:
Input a username: robin Input a password: sds45 Input a username: john Input a password: dfgrt Input a username: doom Input a password: jkkl Login attemp more than three times. Try later!
Flowchart:

C# Sharp Code Editor:
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