How do use one input for multiple purposes?

Question

I'm trying to input a number once and use it in a math expression as well as print it later as a string.

https://code.sololearn.com/c5CSAJrk4oqn/?ref=app

Answer 1

put it in variable?

Answer 2

I'm not sure what that means. but I ended up scanning the number as a string and then separately converting it to a double by using Double.valueOf ().