.NET is a general-purpose software development platform. At its core is a virtual machine that turns intermediate language (IL) into machine code. The .NET Framework is such a comprehensive platform that it can be a little difficult to describe. It is described as a Development Platform, an Execution Environment, and an Operating System among other things. In fact, in some ways each of these descriptions is accurate, if not sufficiently precise.

Java technology's versatility, efficiency, platform portability, and security make it the ideal technology for network computing & has become invaluable to developers. It enables a developer to Write software on one platform and run it on virtually any other platform, Combine applications or services using the Java language to create highly customized applications or services, Write powerful and efficient applications, etc