Microsoft® Visual J++® is an integrated Windows-hosted development tool for Java programming. Visual J++ allows you to create, modify, build, run, debug, and package an application, all within a single environment.

Visual J++ is a deprecated development tool. Microsoft now offers Microsoft J#® .NET, a .NET-based Java language development tool that enables you to develop applications in the Java language that compile and run on the .NET Framework.

http://pl.wikipedia.org/wiki/Microsoft_Visual_Studio#Visual_Studio_6.0