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單項選擇題

public class Person { 
private String name, comment; 
private int age; 
public Person(String n, int a, String c) { 
name = n; age = a; comment = c; 
} 
public boolean equals(Object o) { 
if(! (o instanceof Person)) return false; 
Person p = (Person)o; 
return age == p.age && name.equals(p.name); 
} 
} 
What is the appropriate definition of the hashCode method in class Person?() 

A. return super.hashCode();
B. return name.hashCode() + age * 7;
C. return name.hashCode() + comment.hashCode() /2;
D. return name.hashCode() + comment.hashCode() / 2 - age * 3;

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