Away to minimize technical problems with your computer

Ineed on my history if anyone can check out the last few questions i posted and i will be posting !

Pp 4.1 design and implement a class called sphere that contains instance data that represents the sphere’s diameter. define the sphere constructor to accept and initialize the diameter and include getter and setter methods for the diameter. include methods that calculate and return the volume and surface area of the sphere (see pp 3.5 for the formulas). include a tostring method that returns a one-line description of the sphere. create a driver class called multisphere, whose main method instantiates and updates several sphere objects.

What are listed in the vertical columns across the top of the event editor? a. file names b. conditions c. check marks d. action types