21. The GenericFruit class declares the following method.

    public void setCalorieContent( float f )

You are writing a class Apple to extend GenericFruit and wish 
to add methods which overload the method in GenericFruit.

Select all of the following which would constitute legal 
declarations of overloading methods:

A. protected float setCalorieContent(String s )
B. protected void setCalorieContent( float x )
C. public void setCalorieContent( double d )
D. public void setCalorieContent(String s ) throws NumberFormatException