What is the alternative to Java Card?

There are three other options:

• Proprietary card operating systems.
• MULTOS, a standard put together by Mondex International and now maintained by the MAOSCO Consortium (Europay, Mastercard, American Express, etc). Applications are written in a number of languages and compiled into MEL bytecode (Multos Elementary Language).
• Windows for Smart Cards. Applications are written in Visual Basic and compiled.