Anetwork technician is setting up a web server for a small company. the company has obtained a domain name, company-a, from a domain registry service. the new web server is accessible through the ip address matching the domain. however, when the technician types company-a in the web browser, an error message displays saying that the connection has timed out". what is the problem? "

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.