Toward a Smaller Java
Embedded systems typically have only the minimum amounts of CPU horespower, ROM, RAM, and display capabilities necessary to get the job done. Even cell phones, PDAs, and settop boxes—high-end embedded systems, by almost any standards, and platforms frequently described as “ideal for Java”—are far more resource constrained than desktops. Trying to run a Java program written for a desktop computer on one of these systems is a fool’s errand.
The problem with the “Write Once, Run Anywhere” mantra is that it doesn’t acknowledge the fact of resource constraints or offer would-be Java programmers any other option. Java 2 Micro Edition and the K Virtual Machine do both.
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