My program is scanning wrong input. What to do?

Question

My program asks me to input 3 dimension of a box. It will find the volume next. But if the user put 3 input and press enter it shows wrong volume.

Answer 1

Also, how did you give the input? If you put all three of them in one single input, then of course it will be wrong.

Answer 2

Kindly post your code...so that the error can be identified