NXJ technology

What is leJOS?
leJOS (pronounced like the Spanish word "lejos" for "far") is a tiny Java Virtual Machine. In 2006 it was ported to the LEGO NXT brick.

leJOS NXJ includes all the classes in the NXJ API as well as the tools used to upload code to the NXT brick.

leJOS NXJ offers the following:

  • Object oriented language (Java)
  • Preemptive threads (tasks)
  • Arrays, including multi-dimensional
  • Recursion
  • Synchronization
  • Exceptions
  • Java types including float, long, and String
  • Most of the java.lang, java.util and java.io classes
  • A Well-documented Robotics API

Disclaimer: Java is a trademark of Sun Microsystems. Lego Mindstorms is a trademark of the LEGO Group. There is no association between Lego and leJOS or Sun and leJOS, or even between Lego and Sun as far as we know.
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