$)$ Please read and run FactorialDemo.java as provided in Chapter $15.$

$2)$ Rename FactorialDemo.java to FactorialYourLastName.java and modify the given

factorial$($int n$)$ method so that it will compute the factorial of n using a loop.

$2.$ Submission

$1)$ FactorialYourLastName.java $($the source code file, instead of the screenshot of

code$)[80$ marks$]$

$2)$ Screenshot of your program output which must show your program works as

required $[10$ marks$]$

$3)$ Documentation and style $[10$ marks