This week's book giveaway is in the OO, Patterns, UML and Refactoring forum. We're giving away four copies of Refactoring for Software Design Smells: Managing Technical Debt and have Girish Suryanarayana, Ganesh Samarthyam & Tushar Sharma on-line! See this thread for details.
It depends on the mobile. However, JRE anything (and 1.4 is now obsolete) isn't generally found on mobile devices. The full JRE was originally too big to fit - although once you start talking smartphones with 8GB of RAM, obviously that's no longer a problem. But the mobile device CPUs are usually fairly slow (partly so they'll use less battery power).
So, in short, the runtime environment for J2ME is J2ME. Or JME, these days.
Unless, of course, you're talking a device with something like Android in it. Which is another Java entirely.
An IDE is no substitute for an Intelligent Developer.
I’ve looked at a lot of different solutions, and in my humble opinion Aspose is the way to go. Here’s the link: http://aspose.com