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From: Steven Simpson <ss@domain.invalid>
Newsgroups: comp.lang.java.programmer
Subject: Re: multiple inheritance in Java
Date: Wed, 03 Jul 2013 14:12:22 +0100
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On 03/07/13 13:01, lipska the kat wrote:
> It is possible to add state to an interface so that it is *almost* a 
> class [...]
>
> interface Foo{
>
>    /* explicitly static and final */
>    Integer i = 0;
>    State state = new State(); /* final reference, mutable instance */
>
>    default public void doFoo(Integer x){
>        //i = 10; /* illegal */
>        Integer y = x + i;
>        state.a = y + y;
>        System.out.println("doingFoo, i + x is " + y);
>        System.out.println("doingFoo, accessing state state.a is " + 
> state.a);
>    }
> }

Foo.state is effectively class state, rather than instance state, isn't 
it?  Some possibilities were discussed here:

<http://mail.openjdk.java.net/pipermail/lambda-dev/2012-July/005165.html>


-- 
ss at comp dot lancs dot ac dot uk