adjust your IDE so you see the difference between string literals, keywords and variable names
for example, you could use colour or made them bold or italics
> it returns with exit code 0.
0 means success (but as Ganado said, your code doesn't even compile so you are not running it)
Thanks! I changed the line of code. It turns out that there was another undetected error in a section of code that I didn't include here. Thanks for your answers and patience :)