Is it possible to make an operating system using java?

Question

I wanna know is it possible to make an operating like windows-xp which is written in C language like can I write that in java so that I will have same features as written in

Answer 1

It depends on what you consider "features". If you mean graphical interface, fancy window effects, etc. then yes, although you will need assembly language or C for the very lowest bits (i.e., interfacing with I/O ports, etc.). If you also include the Windows ABIs as a feature then it gets harder since they follow Pascal calling conventions.