alleryMatch abstract types: 1. Full: p. Concrete 2. Half: q. Abstract 3. Pure: r. Interface
A1-p, 2-q, 3-r
B1-p, 2-r, 3-q
C1-q, 2-p, 3-r
D1-r, 2-p, 3-q
Answer & Solution
Correct answer: A. 1-p, 2-q, 3-r
Concrete classes provide complete method bodies, abstract classes allow partial implementations, and interfaces declare pure specifications.
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