Why do almost all companies ask for Java skills when they are recruiting freshers?

I will be graduated by the middle of this year (I am from India). I am a computer science engineer. I have learned HTML, CSS, Javascript, and Python. I have been trying to get placed. So, I am attending some companies who are looking for freshers, but the problem is they are asking questions based on Java, C, and C++.

I am a web developer and they are asking questions on High-level programming languages, do you really think that's fair? I don't think so..!! So what am I doing now? I am learning java..!!