WEBVTT

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Hello, and welcome to How To: Beginner Programming,

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a multi-part guide to your first steps in the world of programming

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In these following episodes, I'll be demonstrating

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the basic principles of programming,

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from creating your first application,

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to developing your own objects.

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Now, don't worry yet if you have no idea what any of those are,

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we'll get to that.

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In the first episode, I'll demonstrate how to set up your

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programming environment, or "workbench",

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and run a simple 'hello world' command,

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commenting on each step throughout

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so you guys know what's going on.

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First things first:

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You'll need an environment to work in, as well as a language to use.

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Now, this is entirely up to preference,

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but I'll be using Visual Studio Express, which is available for free.

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I'll leave a link in the description.

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It's available from the website for free,

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and I'll be using C# (pronounced "see sharp") to program.

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I suggest those of you who have no idea what you're doing,

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or are first-time learners,

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also follow along in C#.

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Otherwise it might get confusing with syntax.

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Once you've got it downloaded and installed,

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open it up and start a new project.

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Now, this will display three basic programming languages.

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Visual Basic, which I would not recommend,

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is good for beginners, but it's a bit too simplistic,

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and not pretty to use, either.

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Visual C++, which I would not recommend for beginners,

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because you have to worry about so much [more than C#].

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For a simple 'hello world' program, C++ is simple enough,

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but when you get to more stuff it gets a bit more complicated,

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especially with arrays.

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Again, we'll get to that in due time,

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but for now we'll be using C#.

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Start a console application.

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Now this is just a basic "black box window" that pops up,

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and you can input and output text to it.

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I'll be calling it "HelloWorld"

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because that's what we're going to be doing with it:

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outputting "hello world" to the screen...

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exciting stuff!

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This has created the project, as well as a "main" method.

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This is where all of the code we're going to write

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will be ran from.

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Every application has one of these ["main" methods].

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Whenever you run an application,

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it will look for the "main" method and run whatever is inside.

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It will continue throughout until it reaches the endpoint.

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For the purpose of the first video,

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we're just outputting a message to the console window.

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To do this, we write

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"Console.WriteLine()"

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and then whatever message you want inside here.

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For the purpose of this, again,

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"Hello World!"

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Whenever you're starting a new language,

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you can usually find a "Hello world" example,

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to show you the syntax [of the language].

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So this is accessing the "Console".

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And using the method, "WriteLine".

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And passing the value, "Hello World!".

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Now, every line you write, in most languages,

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you have to put a semicolon at the end

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as if to say, "That's the end of the line. No more on this line."

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Otherwise, (showing an example)...

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the program won't know what to do.

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Once we've written this, we need a

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"Console.ReadLine()"

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which stops the program from closing,

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so the user has time to actually read the message, "Hello World!"

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If we ran the program without "Console.ReadLine()"...

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it will just open up and instantly close!

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So we use "Console.ReadLine()", or "Console.Read()"

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to stop it from closing so we have time to read it.

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All "Console.ReadLine()" does is it waits for the user

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to input any text and then press enter.

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When enter is pressed, the value is passed into the "Console.ReadLine()",

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and if we had something here, like (example)...

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The variable will be assigned the value of the user's input.

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For now, don't worry about that;

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we're just displaying "Hello World!" to the screen, like this...

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Press enter when you're done.

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That's it for a "Hello world"!

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That's part one of, "How To: Beginner Programming".

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Further parts will be released shortly,

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but I'll leave a gap between videos to allow you to ask questions,

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and I'll answer them at the start of the following part.

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The gap between the first and second episodes won't be too long.

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Maybe do a bit of research before the next episode,

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so you're a bit ahead of everything,

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and any assumptions I accidentally make will make sense to you.

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Thanks for watching, and leave any questions in the comment section below,

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and I'll try to answer them at the start of the next episode.

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Thanks for watching!

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