Question

Write an infinite while loop that asks the user for their username and password. The loop only stops if the username and password for the user are correct. There are only 2 users: the first user’s username is user123 and their respective password is passwrd1, the second user’s username is user234 and their respective password is passwrd2.

Expected output/input when loop is to stop:

Enter username: user123

Enter password: passwrd1

Welcome user123

!Expected output/input when loop continues:Enter username: user234

Enter password: passwrd1

Sorry, username or password is incorrect. Please try again.

Enter username:

Answer 1

Answer: here is the answer for your question :

since any programming language is not mentioned here, so i am doing it in python. if you need any more help , provide comment below

code in python:

u1="user123"
p1="passwrd1"

u2="user234"
p2="passwrd2"

while(True):
username=str(input("Enter username:"))
password=str(input("Enter password:"))
if username== u1 and password==p1 :#checking username and password for user1
print("Welcome {}".format(username))
break
elif username== u2 and password==p2 :#checking username and password for user2
print("Welcome {}".format(username))
break
else:
print("Sorry, username or password is incorrect. Please try again.")

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code snippet:

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code output:

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I hope this would help you out

If you have any doubt, you can provide comment /feedback below the answer

Thanks