If compiler of java is made in c++ ,compiler of c++ in c, then in which language the compiler of c is made?

Assembly is most likely.

If compiler of java is made in c++ ,compiler of c++ in c, then in which language the compiler of c is made?
From the link below:





"The origin of C is closely tied to the development of the Unix operating system, originally implemented in assembly language on a PDP-7 by Ritchie and Thompson"