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Jun 20th, 2018
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  1. class A
  2. @@ha = 'a'
  3. def self.ha
  4. @@ha
  5. end
  6. end
  7.  
  8. class B < A
  9. @@ha = 'b'
  10. end
  11.  
  12. A.ha
  13. #=> 'b'
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