Sample Code:

public class Point
{
   public:
    float GetX();
    float GetY();

     void SetX( float x );
     void SetY( float y );
     float x;
     float y;
}

Question: How can class Point be changed so that it conforms to the principle of information hiding?

Choice 1      Make GetX and GetY private methods.
Choice 2      Make float x and y be private attributes.
Choice 3      It already conforms to the principle of information hiding, no changes are necessary.
Choice 4      Make SetX and SetY private methods.
Choice 5      Make all methods and attributes private.