Basic Programming C# Examples

C# Program Calculate & Display Surface & Volume of Sphere

The Program in C# Sharp program that takes the radius of a sphere as input and calculate and display the surface and volume of the sphere is given below:

using System;

namespace SphereCalculator
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("Hello Codeauri Family,enter the radius of the sphere here to calculate surface area and volume of sphere: ");
            double radius = Convert.ToDouble(Console.ReadLine());

            double surfaceArea = 4 * Math.PI * Math.Pow(radius, 2);
            double volume = (4.0 / 3.0) * Math.PI * Math.Pow(radius, 3);

            Console.WriteLine("Okay, the surface area of the sphere is: " + surfaceArea);
            Console.WriteLine("Okay,the volume of the sphere is: " + volume);
        }
    }
}

Output:

Hello Codeauri Family,enter the radius of the sphere here to calculate surface area and volume of sphere: 5

Okay, the surface area of the sphere is: 314.159265358979
Okay,the volume of the sphere is: 523.598775598299

Pro-Tips💡

Here are the step by step execution of above program:

  1. The first line “using System;” includes the System namespace, which provides access to the Console class used in the program.
  2. The next line defines the namespace “SphereCalculator”.
  3. In the “Program” class, the “Main” method is defined as the entry point of the program.
  4. The program prompts the user to enter the radius of the sphere using “Console.WriteLine” method.
  5. The user input is then converted to a double value and stored in the “radius” variable using “Convert.ToDouble(Console.ReadLine())”.
  6. The surface area of the sphere is calculated using the formula “4 * Math.PI * Math.Pow(radius, 2)” and stored in the “surfaceArea” variable.
  7. The volume of the sphere is calculated using the formula “(4.0 / 3.0) * Math.PI * Math.Pow(radius, 3)” and stored in the “volume” variable.
  8. The surface area and volume of the sphere are displayed using “Console.WriteLine” method.
  9. The program ends after displaying the results.

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