What's the problem?

Question

https://code.sololearn.com/cGcthuni1RXW/?ref=app

Answer 1

You use only void when the function doesn't need to return. Remove double from void double.

You need to return string in toString(). Add return strl;

Answer 2

I'm not a Java programmer, but I feel like the problem is the void double (it doesn't make sense, at least not in other lenguages)

Answer 3

Thank u👍