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Memory Allocation with multiple instances of a Class

Posted on 2008-06-20
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Last Modified: 2013-12-17
Hi, Experts -
I have a question born more of curiousity than criticallty. Let's say that I create a class "Widget". In this class is a set of functions and routines necessary to process Widget. I then have a program that creates 1000 instances of Widget into a Collection of Widgets.

Does VB.NET allocate memory and run a full 1000 duplicates of the code? I assume that they run in the same process space as the program that created the collection, since they are not on different threads. Or does the code for the functions/routines somehow get shared by all 1000 instances of Widget?

Many thanks for your clarification!

LongDave
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Question by:LongDave
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by:graye
ID: 21833117
Yes, they are all created separately and run in the same process space.   There *is* a way you can write a class that uses the "Shared" keyword... this allows you to actually have (at least a part) of the class instances that are shared amoung the 1000 copies.   However, the usefulness of the Shared keyword may not be that great depending on what your class does.
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graye earned 125 total points
ID: 21833122
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Author Closing Comment

by:LongDave
ID: 31469234
Thanks, bud - points to you.
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