Assume that a Scanner object named stdin has been previously declared for keyboard input. Write a snippet of code that uses a while loop to continuously prompt the user for integer input until that input is a multiple of $3.$ When the loop stops, print the number that the user entered to stop the loop.

Sample Run $($user$\text{'}$s input in bold$)$

Enter an integer: $4$

Enter an integer: $5$

Enter an integer: $6$