The classes Integer, Float, and Double are called wrapper classes.

If an optical disc will not eject using the eject button or through the operating system, a user can use a(n) _______ to insert into the emergency eject hole

Fill in the blank(s) with correct word

If a struct type variable is to be passed to a function and its value should not be changed by the function, it is best to pass it as which type of parameter?

a) value b) reference c d) const value