java programming create two class Spheretester and sphere Asap

B. Write a class Sphere with the following properties Private attributes: X,Y, Z coordinates of the center Radius . Accessor and mutator methods to Set and get the X,Y, and Z coordinates Set and get the radius Get the volume and surface area of a sphere. . . For a sphere, volume 4II r3/3 surface area = 411f Write a SphereTester class to test the Sphere class. B. Write a Person class that contains the following fields and methods