c#

/* Answer to: "c#" */

/*
  C# is a general-purpose, multi-paradigm programming language
  encompassing strong typing, lexically scoped, imperative,
  declarative, functional, generic, object-oriented, and
  component-oriented programming disciplines.
*/

Console.WriteLine("Hello World!");

// BEST CODING LANGUAGE TO LEARN 2020

double num = //some number you have
double num2 = //some another number you have
Console.WriteLine(num + num2);

using System;

namespace HelloWorld
{
  class Program
  {
    static void Main(string[] args)
    {
      Console.WriteLine("Hello World!");    
    }
  }
}

/*
	A nullable value type T? represents all values of its underlying
    value type T and an additional null value. For example, you can 
    assign any of the following three values to a bool? variable: 
    true, false, or null.
*/

double? pi = 3.14;
char? letter = 'a';

int m2 = 10;
int? m = m2;

bool? flag = null;

/* A C# (C-sharp ex.) */ 
using System;
	namespace helloWorld
    {
      class Program
      {
        static void Main()
        {
          Console.WriteLine("What's your age?")
           string age = Console.ReadLine()
            Console.WriteLine($"You are {age} years old!")
        }
      }
    }

using System; 

namespace ExampleApp {
    class Example {
        static void Main(string[] args) {
            Console.WriteLine("Hello, world!");
        } 
    } 
} 

using System;
using System.Drawing;

public class Example
{
    public static Image img;

    public static void Main()
    {
        img = Image.FromFile("Image.png");
    }
}