RosettaCodeData/Task/Delegates/J/delegates-2.j

   obj=:conew'delegator'
   operation__obj''
default implementation
   setDelegate__obj conew'delegatee1'
┌─┐
│4│
└─┘
   operation__obj''
default implementation
   setDelegate__obj conew'delegatee2'
┌─┐
│5│
└─┘
   operation__obj''
delegate implementation