Re: a question about this book

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Hello Josh,

No, you don't need to step into that code. That is the whole idea behind Encapsulation which basically abstrats some chunk of functionality into a box with well defined inputs/outputs (an interface contract). That beiong said, it's going to be really hard without some basic understanding of OO concepts since the .NET Framework is completly OO oriented. So, I have already suggested Petzold's Programmin In The Key of C# in another thread that teaches programming from the ground up and Part IV teaches OO from the ground up.

This intro is in C++ but some of intro may help http://www.zib.de/Visual/people/mueller/Course/Tutorial/tutorial.html

Also:
http://www.softwaredesign.com/objects.html
http://www.firststep.com.au/education/solid_ground/oo.html

Sam Gentile
Chief .NET Architect
Adesso Systems, Inc
INETA Speaker, Microsoft MVP - .NET/C#
Blog: http://samgentile.com/blog/


It seems like in order to understand an OO program, you have to jump
around in the code to see everything.

J> If the code is written OO you dont have to step into all of that
J> code. For instance, heres some code.
J> J> String a = "some text"'
J> DataTable myTable = UserBusinessObject.GetBlankTable();
J> int b = 23;
J> Now when reading through this code you wouldn't have to follow the
J> flow into "UserBusinessObject.GetBlankTable()" because it's self
J> explanatory, and provided there is no error when you make the call
J> you dont have to go look in there.
J> J> OO code should be broken down into compact self contained units so
J> that reading the code is simpler than reading procedureal code.
J> Effectively OO can simply be considered an enhanced GOSUB
J> technology.
J> 



.

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