Visual J Sharp

Visual J# was Microsoft's implementation of the J# language, a bridge for programmers who knew Java and Visual J++ and wanted to carry their skills and code over to the .NET Framework. It arrived in 2002 and was retired in 2007, though support for its last release ran on until October 2017. J# accepted Java source and could also work with existing Java bytecode, so applications that relied on third party libraries without source code could still be brought across. It was built by the Microsoft India Development Center in Hyderabad. Its origin lies in the legal dispute between Sun and Microsoft over the compliance of the Microsoft Java virtual machine in Visual J++. Visual J# used familiar Java syntax but did not produce Java class files, and it left out applets, remote method invocation and the Java Native Interface, replacing the last with P/Invoke.