Test Cases in Java Projects

Question

I'm so confused. I'm writing my code in Intellij Idea and then copy the running and right code to SoloLearn projects (like Loan Calculator or Binary Converter, I don't know if everyone has got the same). But SoloLearn is running Test Cases and mostly I only got a few ones right, although my code is running perfectly in Intellij.
Does SoloLearn runs Test Cases that need exception handling or something like that? Please help :(

Answer 1

I don't think so. Could you link the code?

Answer 2

If it doesn't have a gui then should work ok dealing with exception handling