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What happends behind the scenes when you write Groovy code 1+1?   Honestly speaking, I'm a newbie of Groovy. And I want to share my learning expericens with you guys who want to study Groovy too...

The GDK  defines the methods times, upto, downto, and step. They all take a closure argument. The following shows these methods in action: times is just for repetition; upto is for walking a se...