java rule for extends and implements

Posted by iamrohitbanga on Stack Overflow See other posts from Stack Overflow or by iamrohitbanga
Published on 2010-03-14T05:22:45Z Indexed on 2010/03/14 5:25 UTC
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java-specification

While coding I created a class that extended ArrayList<> and implemented Iterator<>. Obviously Netbeans reported an error, because ArrayList itself implements Iterator.

What rule of Java Specification prevents this?

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