This is hard to say with any certainty, since there are very many operating systems out there. Most of those operating systems don't have a large enough user/developer base to warrant an implementation of Java.
Officially, Sun only offers downloads for: Linux, Solaris, Windows, and (via Software Update) OS X.
Of course, Sun isn't the only group allowed to implement Java, which makes answering this question all that much more difficult.
IBM, for example, also supports z/OS and AIX (as well as Windows and Linux again).
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Java does not support multiple inheritance.......
No. Java does not support copy constructor
No. I have read that it will support Java. I believe that it does not support flash ATM.
Java support system includes: · Applets · Servlets · Java Beans · EJB · JSP · XML · SOAP · CORBA
Java compiler available on multiple platforms, the class files it generates are platform-independent.