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The information hiding principle is generally accepted as one that if followed leads to higher quality software than if it is not followed. To follow the information hiding principle in object-oriented designs the advice is to avoid non-private fields. There is, however, little empirical evidence as to whether or not this advice is being followed. This paper presents the results of an empirical study...
A recent study on how inheritance is used in open source Java software revealed a surprising number of interfaces that were neither implemented nor extended. While innocent explanations for this exist (the interfaces are part of frameworks that only clients of the frameworks implement), it does raise the question of how much "dead code'' exists in applications. Dead code usually refers to code...
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