A null character is a character with all its bits set to zero. Therefore, it has a numeric value of zero and can be used to represent the end of a string of characters, such as a word or phrase. This helps programmers determine the length of strings. In practical applications, such as database and spreadsheet programs, null characters are used as fillers for spaces.
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This page contains a technical definiton of Null Character. It explains in computing terminology what Null Character means and is one of many computing terms in the TechTerms dictionary.
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