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  1. class Tree
  2.  
  3. end
  4.  
  5. module TreeStuff
  6. 	def initialize(data);
  7. 	 	@data = data;
  8. 	end;
  9. 	def toString;
  10. 		puts "@data"
  11. 	end;
  12. end
  13.  
  14. class TreeItem;
  15. 	include TreeStuff;
  16. 	def initialize(data)
  17. 	 	puts "Error: WRONG!"
  18. 	end;
  19. 	def toString;
  20. 		print "Error: WRONG!";
  21. 	end;
  22. end;
  23.  
  24.  
  25. class NumericTreeItem < TreeItem
  26.   include TreeStuff;
  27. end
  28.  
  29. class StringTreeItem < TreeItem
  30.   include TreeStuff;
  31. end
Success #stdin #stdout 0.01s 7460KB
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https://ideone.com/6ttfD4
language:
Ruby (ruby 2.5.5)
created:
10 years ago
visibility:
public

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