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a square is indeed not a rectangle therefore i see this as the only flaw that needs to be pointed out: public class Square extends Rectangle inheritance for t
by spooneybarger 17y ago
a square is indeed not a rectangle therefore i see this as the only flaw that needs to be pointed out:
public class Square extends Rectangle
inheritance for the sake of implementation is bad OO design.
- raganwald 17y agoIt is an old concept that got ignored somewhere along the road to java. Inheritance for the sake of implementation is called WAS_A. In C++, this is what private inheritance does. In languages like Java and Ruby, WAS-A is often implemented using delegation, so that a square HAS-A rectangle.