Write C$++$ code for a program to calculate and display the volume and surface area

of a closed cylinder from a given radius and height. Hence, a prompt must be made

for radius and height and whose value can have fractional values.

Do the calculation only if both radius and height are greater than $0.$ Display

error message $-$ be specific which one is not valid.

For the output, display the inputted radius, inputted height, volume and total

surface area.

Use this formula for calculating the volume.

volume $=.$ radius ${?}^2.$ height

Use this formula for calculating the total surface area.

Surface area radius radius $$ height