Damn, I rushed this code, but good job using switch cases !!!

I have tested my code with all possible scenarios and consistently received the expected results. My concern is that while the code runs perfectly in my IDE, it fails upon submission. I’m curious if anyone else has experienced a similar issue. Hope that clears it up for you :)

Java: I have done this problem on an IDE and it runs perfectly. I've inputed all different scenarios, and I still end up getting the expected result. My test over here passed, but when I try to attempt, I am getting an error. Is anyone getting the same problem by any chance?