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  1. class Foo
  2. 	attr_reader :a
  3.  
  4. 	@@a = 2
  5. end
  6.  
  7. puts Foo.a
  8.  
Runtime error #stdin #stdout 0s 4716KB
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Standard input is empty
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Standard output is empty
https://ideone.com/nSYyS
language:
Ruby (ruby 2.5.5)
created:
12 years ago
visibility:
public

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