JAVA Stack(data structure) Code (NEED HELP!)

Question

This is a code of STACK data structure
i wanna to make scanner return to start for example we got scanner 1 and scanner 2 ,after run scanner 1 will go scanner 2 immediately and after scanner 2 will return back to scanner 1 as well.
*Recommend using computer to check this code. a little bit messy for phone user......

https://code.sololearn.com/ccWvLV4I80X3

Answer 1

import java.util.Scanner;
import java.util.Stack;

Line 27: change */ to //

It works but on sololearn you have to input everything at the beginning.