This is Part 2 of a series answering the question:
Where do I start as a programmer:16/08/2007 update - Fixed linksHistorically, programming languages are often introduced with their Hello World example. It is completely trivial but also quite an informative place to start.
A Hello World may look like this, for a .NET Console application:
...in C#
class Program
{
static void Main(string[] args)
{
Console.WriteLine("Hello World");
Console.ReadLine(); // press Enter to close
}
}
...in VB.NET
Sub Main()
Console.WriteLine("Hello world!")
Console.ReadLine() 'press Enter to close
End Sub
I won’t go into the exact details of this sample, but I will mention that the purpose of this trivial example is to illustrate that you are scripting a conversation between the computer and a program. Magic does not live here. Computers are just following instructions.
The value of starting a project on a rich framework like the Microsoft.NET framework is that plenty of the elemental pieces required to construct these scripts are supplied for you and arranged in a discoverable fashion.
An exhaustive list of the pieces that are supplied in the framework is documented in the MSDN Library that you can install with the Express Editions
and also online.
Follow the white rabbit, neo… Start with some good quality learning guidance focused on Visual Studio:
…and don’t forget the web is littered with good and not so good programming tutorials.
Read other people's source code
The problem with tutorials is that they often leave off some important details in order to keep the example simple, thus you can only go so far reading tutorials.
Reading other people's source code can be very helpful in understaning how a technology is used in practice. Some sources:
Start a projectLots of people (ok, me – but probably plenty of others too) need a project to really get the programming juices flowing. I need a problem to solve; otherwise I’ll just stare at the
File -> New dialogue for hours.
What does this mean for beginner programmers? Don’t think you have to look for problems that are new to science and have never been solved before. Download.com probably has hundreds of “note taking” applications, and “home movie database” applications. The benefit of starting a project at this stage of your career is not to solve a new problem – it’s what you pick up along the way.
Be generous with the constraints of your project. Learning works best when it’s fun. The last thing you need when starting programming is the stress of project constraints!
Start a blogGrab an account at
Blogger or one of the other blogging platforms and record your experiences.
Even if it is just
“this is what I learned today” and
“this is what I don’t understand today” posts there is still value in blogging:
- Blogging forces you to stream your thoughts down into words. The cathartic effect this can have on your thoughts while learning a technology can hardly be understated.
- Blogging is a great way to open a conversation with other people who are doing the same thing
For blogging on the train? Try
Windows Live Writer, but I often just use Word then copy-and-paste when I get connected again.
Be aware of support:Of course, the blogosphere has a wealth of information
Some others:
...and there are literally hunderds more sites on the web of various quality and reputation...
What Else? I'd love to hear from anyone via comments here on
this topic. What other bits should people go and get for programming
on day one.
Listening To: DAT323 Inside T-SQL (with Itzik Ben-Gan) from Tech.Ed '07.