MysteryClass -first: int -second: double; +MysteryClass() +MysteryClass(int) +MysteryClass(double) ; +MysteryClass(int, double) +setData(int, double) : void +getFirst() : int +getSecond() : double +doubleFirst() : int +squareSecond() : double +print() : void +equals(MysteryClass) : boolean +makeCopy(MysteryClass) : void +getCopy() :MysteryClass According to the UML class diagram in the accompanying figure, which method is public and doesn't return anything?
A) getCopy() B) print() C) equals(MysteryClass) D) doubleFirst()