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"?

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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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