Today the Common Language Run Time Supports Many Languages including Iron Python and Iron Ruby. We can similarly can use J Ruby and J Python in Java Run Time environments . If so why the .net frame work common language run time cannot support for Java? Um just curious to know though u may see this as a dumb question .
Today the Common Language Run Time Supports Many Languages including Iron Python and Iron
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The CLR was actually designed so that it could do everything required to run Java. (Indeed, there are some warts in the way IL is defined which are there specifically for compatibility with Java.) You just need a way of converting bytecode to IL, or compiling from Java source code to IL. J# was one way of doing this, but the limitation of using Java 1.1.4 was a pretty huge one.
I suspect the reason for not going further wasn’t an issue with running Java as a language, but the fact that system libraries would need porting. If you were willing to write Java-like source code but target .NET framework libraries (and only .NET framework libraries), with a version of the JLS which switched
java.lang.StringtoSystem.Stringetc, it would be doable. I don’t think there’d be much benefit though, when C# is simply a nicer language in almost all ways.You may be interested in looking at IKVM.NET though – an implementation of Java running on the CLI.