試題詳解

Which statement is true?
(A) The equals method does NOT properly override the Object.equals method.
(B) Compilation fails because the private attribute p.name cannot be accessed in line 5.
(C) To work correctly with hash-based data structures, this class must also implement the hashCode method.
(D) When adding Person objects to a java.util.Set collection, the equals method in line 4 will prevent duplicates.