What Does Visual J# Mean?

Visual J# is a set of programming utilities that enables developers to use Java-language syntax to build applications and services that run on the Microsoft .NET framework. Visual J# integrates Java language features into the Visual Studio integrated development environment (IDE).

Techopedia Explains Visual J#

The Java Virtual Machine (JVM) is not supported by Microsoft, but Visual J# allows a Java programmer to use the same concepts and syntax when writing Java-based software that will run on the .NET framework common language runtime platform.