[FAQ] A Beginners Guide to Programming, C#. - Page 2 - Overclock.net

blade007 · 05-07-08

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version2 · 05-08-08

I don't like your thinking of arrays at all. You should be using a topological approach to support the understanding of multi-dimensional arrays. I'll start by asking you about: how do you think of 4 dimensional arrays?

And you don't have an answer because you can't... except by thinking of this: variable[2][8][3][7];
Which doesn't help.

So, I highly recommend for new programmers to think of arrays as a tree diagram. Every new dimension is a new split in a tree. Try drawing it out and you'll see you'll be able to draw as many dimensions beyond 3... Sweet. (Now you can go to some bar and bet people there that you can draw something with 10 dimensions...)

jinja_ninja · 05-08-08

Very nicely done.

I don't have the "knack" for coding at all. Tried it many times at college...

I will stick to HTML and Hardware

Licht · 05-08-08

Quote:

Originally Posted by version2

I don't like your thinking of arrays at all. You should be using a topological approach to support the understanding of multi-dimensional arrays. I'll start by asking you about: how do you think of 4 dimensional arrays?

And you don't have an answer because you can't... except by thinking of this: variable[2][8][3][7];
Which doesn't help.

So, I highly recommend for new programmers to think of arrays as a tree diagram. Every new dimension is a new split in a tree. Try drawing it out and you'll see you'll be able to draw as many dimensions beyond 3... Sweet. (Now you can go to some bar and bet people there that you can draw something with 10 dimensions...)

My thinking of arrays is to help the user understand the way they can use coordinates. Using a tree for a 2 dimensional array wouldn't totally encompass the understanding of these uses. For example your listing numbers in rows of ten. Every y x's value is increased by 10 because of this (x being horizontal coordinate y being vertical.) On a tree that could look confusing, but imagining it how it is (a plain) will yield instant "ok i understand that, simple" responses.

rabidgnome229 · 05-08-08

Quote:

Originally Posted by version2

I don't like your thinking of arrays at all. You should be using a topological approach to support the understanding of multi-dimensional arrays. I'll start by asking you about: how do you think of 4 dimensional arrays?

And you don't have an answer because you can't... except by thinking of this: variable[2][8][3][7];
Which doesn't help.

So, I highly recommend for new programmers to think of arrays as a tree diagram. Every new dimension is a new split in a tree. Try drawing it out and you'll see you'll be able to draw as many dimensions beyond 3... Sweet. (Now you can go to some bar and bet people there that you can draw something with 10 dimensions...)

His way is a good method of beginning to understand multidimensional arrays. It is unfeasible with higher numbers of dimensions, but if you really need to think critically about multidimensional arrays its best to think about how they are layed out in memory (linearly) rather than trying to wade through trees. If you try to do it with trees you run into a different problem - a 10x10x10 array already has 1000 leaves and would be way too dense to actually be a useful visual.

DjQurt · 05-10-08

argh i cant get past the first step! when i open toolbox nothing is in there and i can find buttons to drag! help me licht!

Licht · 05-10-08

Quote:

Originally Posted by DjQurt

argh i cant get past the first step! when i open toolbox nothing is in there and i can find buttons to drag! help me licht!

Have you created a new Windows Forms project?

alawadhi3000 · 05-14-08

Awesome, REP+

from what I see is that C# is a combination of C++ and VB codes right?

Licht · 05-14-08

Quote:

Originally Posted by alawadhi3000

Awesome, REP+

from what I see is that C# is a combination of C++ and VB codes right?

No C# is a combination of C++ and Java. Nothing like VB in the slightest if you get into either more then just the up front images.

alawadhi3000 · 05-14-08

Quote:

Originally Posted by Licht

No C# is a combination of C++ and Java. Nothing like VB in the slightest if you get into either more then just the up front images.

I saw the messagebox is same as VB and got confused

I didn't try C# yet as the college requires c++, VB and JAVA only

05-07-08	#11 (permalink)
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[FAQ] A Beginners Guide to Programming, C#.

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