Group
C# Basic Data Types Overview
Objective
1. Prompt the user to enter the radius of the sphere.
2. Convert the input into a floating-point number using `Convert.ToSingle(...)`.
3. Calculate the surface area using the formula \( A = 4 \pi r^2 \).
4. Calculate the volume using the formula \( V = \frac{4}{3} \pi r^3 \).
5. Display the computed surface area and volume with appropriate formatting.
6. Ensure the program handles invalid inputs gracefully.
Write a C# program that calculates the surface area and volume of a sphere, given its radius (surface area = 4 * pi * radius squared; volume = 4/3 * pi * radius cubed).
Note: For floating-point numbers, you should use Convert.ToSingle(...).
Example C# Exercise
Show C# Code
using System;
class Program
{
static void Main()
{
// Ask the user to enter the radius of the sphere
Console.Write("Enter the radius of the sphere: ");
// Convert input to a floating-point number
float radius = Convert.ToSingle(Console.ReadLine());
// Define the value of pi
float pi = (float)Math.PI;
// Calculate surface area: A = 4 * π * r^2
float surfaceArea = 4 * pi * radius * radius;
// Calculate volume: V = (4/3) * π * r^3
float volume = (4f / 3f) * pi * radius * radius * radius;
// Display the results
Console.WriteLine("\nSphere Calculations:");
Console.WriteLine($"Surface Area: {surfaceArea:F2} square units");
Console.WriteLine($"Volume: {volume:F2} cubic units");
}
}
Output
Enter the radius of the sphere: 5
Sphere Calculations:
Surface Area: 314.16 square units
Volume: 523.60 cubic units