Java is the supported language by .NET.
Where is it used ? Is there any IDE available for programming with Java.NET ?
Isn't Java.NET a platform independent ? Can we compile it using JVM ?
Java is not supported by .NET - C#, VB.NET and several other languages is.
Java, as well as a language, is a development platform entirely independent from .NET, although the underlying ideas are similar - one might indeed see .NET as Microsoft's answer to Java.