“The interoperability between .Net and Java is essential,” said Annrai OToole, executive chairman of Cape Clear, in Walnut Creek, Calif. “Thats a prerequisite of participating in this market.

Java showed a dramatic decline of -3.92% on TIOBE’s system. While the programming language still sits at number four, Jansen notes that C# has never been this close to catching up to Java.

Additionally, the Java language and C#—the first and most prominent .NET language—are both derived from C and are semantically similar. We’ll look at the .NET languages next.

Thus, MainWin turns Visual Studio .Net into a “develop, debug, and deploy” IDE for J2EE apps, with the peculiar twist that those apps can be written in Visual Basic (VB) .Net or C#.

Whatever choice developers make there is a transition, he said: whether they move from Visual Basic 6 to Visual Basic .Net; learn C#, or lean Java.

Code that calls Java APIs can convert to comparable C# code that uses the .Net Framework. The JLCA converts 90 percent of JDK-level 1.1.4 calls and emits issues in code for the other 10 percent.

JLCA 2.0, which automatically migrates most existing Java source code to Visual C# .NET, is available for download on the Microsoft Developer site. Move from Sun ...

The software allows code sharing and debugging across C#, Visual Basic .NET and Java. MainWin, first released in 2004, also surpasses the standards-based approach to integrating ASP.NET apps with J2EE ...

Using the .Net-Java interoperability software from Mainsoft, UZ Gents .Net development team will use the Visual Studio 2005 development environment to integrate its existing .Net application ...