alleryMatch mutator roles: 1. Set: p. Update val 2. Check: q. Validate 3. Hide: r. Encapsule
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
Setter mutators update internal variables, enforce validation invariants, and preserve field encapsulation.
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