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What does null mean?

The word null has different meanings. In law it means having no legal or binding force, invalid, in mathematics it means having or associated with the value of zero. In computer science, it is a special pointer value used to signify that a pointer intentionally does not point to an object.
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What is Null?
Null can mean a couple of different things. First, it can mean to have no legal standing or be invalid. Also, it can mean to have a value of zero.  answers.ask.com
How to Create Endpoint Nulls.
1. Ascertain the length of your character string. 2. Ascertain the endpoint of your character string by subtracting one from the total length of the character string (Array elements start at 0, not 1) 3. Set the endpoint to the null character with  www.ehow.com
Who is null?
umm. that's actually reallyyy tuff. no one knows yet.  wiki.answers.com
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