Is deriving square from rectangle a violation of Liskov's Substitution Principle?

Posted by somaraj on Stack Overflow See other posts from Stack Overflow or by somaraj
Published on 2009-06-23T03:39:41Z Indexed on 2010/05/11 23:54 UTC
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design

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oop

I am new to design and learning the design principles.

It says deriving square from rectangle is a classic example of violation of Liskov's Substitution Principle.

If that's the case, what should be the correct design?

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