Java版的Ruby解释器 JRuby简介

require "java"

include_class "java.util.TreeSet"
include_class "com.example.CallMe"
include_class "com.example.ISpeaker"

puts "Hello from ruby"
set = TreeSet.new
set.add "foo"

set.add "Bar"
set.add "baz"
set.each { |v| puts "value: #{v}" }

cm = CallMe.new
cm.hello
$globalCM.hello

class CallJava
include ISpeaker
def initialize
 super
 @count = 0
end

def say(msg)
 puts "Ruby saying #{msg}"
end

def addOne(from)
#  m.synchronize {
  @count += 1
  puts "Now got #@count from #{from}"

#  }
end
end