程序:
class MyDate{
private int year;
private int month;
private int day;
public MyDate(
int year,
int month,int day){
this.year=year;
this.month=month;
this.day=day; }
//Override Method }
為了讓new MyDate(1980,11,9)==(判斷是否相等)new MyDate(1980,11,9) 返 回true,必須在Override Method處覆蓋哪個方法?()
A. hashCode
B. equals
C. toString
D. notify