Here are more reasons on Why Java?

Similar to C++ so it is familiar to commercial programmers

Does not include the nasty dangerous parts of C++ so it is safe

Extensive run-time type information and safe dynamic link-loading is available

Includes string and multi-thread support in the language

Automatic memory management

Data type sizes and arithmetic behavior are fixed and fully defined for all platforms

Has useful standard OO libraries

Documentation can be extracted from the source code

Security checking is built in to the libraries and virtual machine

Supports Unicode for ease of internationalization

Write once, run anywhere, any platform

Vast amount of supplier and programmer support and acceptance. It is unkillable.