JRuby - include Java vs require "java" - what's the difference?

wh开发者_运维技巧at's the difference between include Java and require "java"?

require 'java' is called to make all the Java integration facilities available to the script. The require keyword is somewhat similar to the import keyword in Java; it is a signal to load resources from a file whose name follows the keyword

include Java : We include Java API to JRuby.

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