On Wednesday 13 Aug 2003 19:53, Simon Edwards wrote:
> Some people still don't understand the difference (importance!) between an
> interface and an implementation.

Which is why java is a fairly good choice of language to teach OO concepts as 
it explicitly has the 'interface' keyword, and from the start of any decent  
java course you are encouraged to program to an interface, even the standard 
library encourages this.

Tom

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