Ooops, my bad - I have the picture now :)
On 23/09/2010 20:51, Henrik Andersson wrote:
Glen Pike skriver:
"has a" (interfaces) than "is a" (subclass),
That's wrong. HAS-A is not used for interfaces, it is used for
reference properties and other forms of containment. Both interfaces
and classes use the IS-A relation.
You don't say Picture HAS-A IDrawable, you say Picture IS-A IDrawable.
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