first commit, Ruby learning

.loadpath

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+<?xml version="1.0" encoding="UTF-8"?>
+<loadpath>
+	<pathentry path="" type="src"/>
+	<pathentry path="org.rubypeople.rdt.launching.RUBY_CONTAINER" type="con"/>
+</loadpath>

.project

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+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>FirstRuby</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>org.rubypeople.rdt.core.rubybuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>org.rubypeople.rdt.core.rubynature</nature>
+	</natures>
+</projectDescription>

src/Array.rb

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+3.times { print "Ruby!"}
+1.upto(9) { |x|  print x}
+
+a =[1,2,3]
+a.each do |elt|
+  print "\n"
+  print elt 
+end
+
+b = [1,2,3,4]
+
+c = b.map { |e| e*e }
+
+print "\n" 
+c.each do |e|
+  print e
+  print " "
+end
+print "\n" 
+
+d = c.select {|x| x > 10}
+d.each do |e|
+  print e
+  print " "
+end
+print "\n" 
+
+print "array inject demo"
+sum = 0
+sum = a.inject {|sum, x| sum + x} 
+
+print sum