alleryMatch hiding roles: 1. Hide: p. Data state 2. Method: q. Inspect 3. Invar: r. Contract
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
Information hiding conceals internal state from external tampering, while methods provide authorized access that maintains class invariants.
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