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  1. enum Direction {
  2.     North, South, East, West, Up, Down
  3.     Direction getOpposite() { 
  4.         values()[ordinal() + ordinal() % 2 * -2 + 1]
  5.     }
  6. }
  7.  
  8. Direction.values().each { 
  9.     println "opposite of $it is $it.opposite"
  10. }
  11.  
Success #stdin #stdout 1.17s 217600KB
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Standard input is empty
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opposite of North is South
opposite of South is North
opposite of East is West
opposite of West is East
opposite of Up is Down
opposite of Down is Up
https://ideone.com/8J8lv
language:
Groovy (groovy 2.5.6)
created:
12 years ago
visibility:
public

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