Create a sub program that will calculate the necessary uniform payment amount given the present worth of the investment, the interest rate, and the number of months in the payment period. Take user inputs via an input box. Check that the input values are numeric and positive. If they are not, show a message box asking for the user to input numeric values. Round the output to two decimal places. Include units when writing the user inputs to the Excel document.

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.