Bloomberg Financial Software Developer interview questions

I applied for a Financial Software Development entry level position and when filling my application they asked my strongest programming language among c,c++, and Java. As I had previous experience with Java I selected it as my strongest language. The following day they sent me an email with instructions to take an online skills assessment. Reading this forum, I practiced a few IQ/Intelligence test with good results so I felt confident to take the test. I took the test and to my surprise it was all Java programming questions (syncronisation, inheritance, interfaces, polymorphism, analysing pieces of code, etc). The questions where very specific and not about general OO programming concepts eg. Which one of the following is NOT polymorphic behavior? As I've been out of practice a bit in hands on programming I really struggled with the test. Basically I didn't remember clearly the syntax and got confused with some sentences. My recommendation is that you should study throughly your programming language selection and be ready for tricky questions.