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  1. JDK
  2. JDK-4905919

RFE: Operator overloading

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    • Icon: Enhancement Enhancement
    • Resolution: Won't Fix
    • Icon: P4 P4
    • None
    • 1.4.2, 5.0, 6
    • specification
    • generic, x86
    • generic, linux, windows_2000, windows_xp

      Name: rmT116609 Date: 08/13/2003


      A DESCRIPTION OF THE REQUEST :
      There is an intensive discussion about adding operator overloading to the java language

      Please also see:

      http://developer.java.sun.com/developer/bugParade/bugs/4087427.html

      JUSTIFICATION :
      This post is made to give the people the chance to discuss and vote.
      (Incident Review ID: 199033)
      ======================================================================

      Name: rmT116609 Date: 08/12/2004


      A DESCRIPTION OF THE REQUEST :
      Even though there's a sort of JVM operator overloading (see toString or the == in enum), this language feature is still missing as a general language extension.


      JUSTIFICATION :
      Operator overloading can be avoided using functions, of course, but there are cases where the code become more readable, simpler and self-documenting.
      I do know all the pros and cons about this, but as I heard similar things for some of the new great improvement on the way with 1.5, I don't see why the operator overloading has been left apart.

      EXPECTED VERSUS ACTUAL BEHAVIOR :
      EXPECTED -
      The behaviour would be much like the normal c++ behaviour.
      ACTUAL -
      No behaviour can be described as it's a non permitted syntax expression.

      ---------- BEGIN SOURCE ----------
      public class MultiTierApp {
      ...
      }

      public class Tier1 implements Tier {
      }

      public class Tier2 implements Tier {
      }

      MultiTierApp mta = (new Tier1) + (new Tier2);
      ---------- END SOURCE ----------
      (Review ID: 296755)
      ======================================================================

            abuckley Alex Buckley
            rmandalasunw Ranjith Mandala (Inactive)
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