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From: Jan Burse <janburse@fastmail.fm>
Newsgroups: comp.lang.java.programmer
Subject: Re: Immutable Datastructures with good Sharing
Date: Sat, 05 Nov 2011 22:06:20 +0100
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Eric Sosman schrieb:
> On 11/5/2011 4:38 PM, Jan Burse wrote:
>> Jan Burse schrieb:
>>
>> Ok, I make it easy for you:
>>
>> Jan Burse was writing (19:30):
>>> public class Stack {
>>> [...]
>
> Stack.java:6: <identifier> expected
> Stack(e, n) {
> ^
> Stack.java:6: <identifier> expected
> Stack(e, n) {
> ^
> 2 errors
>

Ok, here comes the revision:

      public class Stack {
           final Object element;
           final Stack next;

           Stack(Object e, Stack n) {
              element = e;
              next = n;
           }

           public Stack push(Object e) {
              return new Stack(e,this);
           }

           public Object top() {
              return element;
           }

           public Stack pop() {
              return next;
           }
       }

     // No license attached