Hi Saurabh,
It is true that java dont allow operator overloading,but this dosent restrict java compiler and java interpreter from using it.
what i mean to say is u cannot use operator overloading for programming in java,but it is used internally buy java.
So i think u face this type of question in interview then u should also be prepare for questions like how how does 3-4 works in java
and what is role of -.
hope i did't confused u,do get back if ur not clear
regards