I think it is C. cross-site scripting
All he would need to do is go into the sheet and change the name again. This will change the HTML so the computer will not be confused. The name should make sense, but he completely different from the original name :)
Jennifer Lopez’s picture led to the creation of google images.
1. ms-dos 1981
2. windows 2.0 1987
3. windows xp 2001
4. mac os 2001
5. windows 7 2009
I added a decimal format to keep all decimals within the hundredths place. I also changed the calcTip method to void and the argument to a double. Void means the method doesn't return anything and changing bill to type double let's us pass numbers with decimals to the calcTip method. I hope this helps!
