For our fifth installment of Hello World in Every Language, we’re tackling Hello World in C#. At this point, we’ve covered many of the main industry languages such as Java, C, C++, and Python. Now, let’s take on Microsoft’s C#.
Table of Contents
C# Background
As always, I took to Wikipedia
to learn more about C#.
Just like our other programming languages so far, C# is a general-purpose language. However, unlike our other languages, C# was designed for the Microsoft platform as a part of the .NET initiative in 2000. We’ll see something along the same lines when we get to languages like Objective-C and Swift.
Some notable features of C# include the virtual and var keywords as well as properties and namespaces. Because of these features, C# can seem like a nice cross between Java and C++. In fact, C# is often considered a clone of Java.
Personally, I like C# much more than Java. I won’t go into too much of a tangent, but C# has this beautiful feature that allows us to declare getters and setters in a single line. Just take a look:
public string Name { get; set; }
Now, we have a string which we can get and set directly and safely without having to implement our own methods. I love this syntax.
Also, I love the fact that C# can be used to develop games in Unity. Beyond Android apps, I haven’t seen many fun commercial uses for Java.
Hello World in C#
Now, we can implement Hello World in C# in a couple of ways. For simplicity, I’ll share the minimalist approach but be aware that there are more complete ways to do this:
class HelloWorld {
static void Main() {
System.Console.WriteLine("Hello, World!");
}
}
If you read the Hello World in Java tutorial, then this probably looks very similar. In fact, C# shares a lot of the same look and feel as Java. With that being the case, I’ll only highlight the major pieces here.
Before we can print, we have to create a class. Inside our class, we declare the main method. And inside our main method, we run our print command. The syntax and core libraries are a little different, but it feels eerily similar to Java.
How to Run the Solution
Perhaps the easiest way to run this solution would be to open up an online C# compiler. Just copy the code from above and drop it into the editor before hitting run.
Alternatively, we can download Visual Studio or Mono to run C# locally. Of course, we’ll want a copy of the solution as well. Refer to the manual of the various tools to run C#.
As far as I know, there aren’t any easy ways to run C# code from the command line, but I imagine it can be done.
Sample Programs in Every Language
With these first five articles finished, I can honestly say that anything past this point is new to me. Up next, I want to tackle Ruby. I hear that Ruby is also a general-purpose language, but it has a very popular framework used for web development. I’ll be focusing on the general-purpose language which we can run locally on the command line.
Recent Posts
Recently, I was thinking about the old Pavlov's dog story and how we hardly treat our students any different. While reflecting on this idea, I decided to write the whole thing up for others to read....
In the world of programming languages, expressions are an interesting concept that folks tend to implicitly understand but might not be able to define. As a result, I figured I'd take a crack at...