What will have to change if the instance variables month and day of the Date class are replaced by the single instance integer variable dayOfTheYear?
A)The implementation of the methods will change, but the interface will not need to change.
B)The implementation of getDay will not change, but the implementations of the other methods will not change and the interface will not change.
C)The interface will need to change to remove setMonth, but no other parts of the interface will change.
D)All of the interface will need to be changed when the instance variables change.

Question

Quizplus · Accepted Answer

Replacing month and day with a single variable dayOfTheYear changes how the Date class internally represents a date, affecting the implementation of methods that rely on month and day. However, the interface (the methods exposed to users of the class) can remain the same, as these changes are internal.

What Will Have to Change If the Instance Variables Month