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DIFFERENCE BETWEEN IDENTIFIER AND KEYWORD

Identifier
keyword
Identifiers are names that are given to various program elements, such as variable, function and arrays.
C take some reserved word called keyword, they have predefine meaning in C.
Identifiers consist of letters and digits.
Keyword consist only letter.
Identifier’s first character must be a letter.
Keyword’s all character is letter.
Identifiers Upper and lowercase letter is use.
Keywords are all lowercase.
Upper and lowercase are not equivalent.
Upper and lowercase are also not equivalent.
Like: X, sum_5, _weather etc.
But 4th is not identifier cause identifier first character must a letter.
Like: auto, short, long etc.
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Comments

  1. ananyaSeptember 10, 2011

    Jakir bhaya it helped me lot in knowing the diff b/w identifier & keyword
    thanks a lot providing it

    ReplyDelete
  2. Uttam AgrawalNovember 22, 2011

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  3. UnknownSeptember 04, 2012

    SUPER INFO

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  4. UnknownNovember 28, 2012

    its really helpful

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  5. akr48December 27, 2012

    great !!

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  6. UnknownMarch 06, 2013

    thnxxx a lot..

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  7. UnknownJune 26, 2013

    Thanks for the explanation, God Bless

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  8. UnknownNovember 13, 2013

    superb

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  9. UnknownFebruary 19, 2014

    thanks bro

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    tnx

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    Nice ,
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  13. UnknownNovember 29, 2015

    thank for d info

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  14. UnknownNovember 29, 2015

    thank for d info

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  15. UnknownDecember 15, 2015

    Thnx soo much

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  16. UnknownApril 12, 2016

    Thanks bro

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  17. gursheeshSeptember 13, 2016

    First character can be a uppercase, lowercase letter or underscore.

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    This is nice blog. Contents over here are so informative. For more information in this topic, visit here.. Identifiers and Keywords | Object Oriented Programming (OOP)

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  20. UnknownApril 01, 2017

    In C programming language, the name of variables, functions, labels and user-defined entities are called Identifiers.
    C keywords are the reserved words which are pre-defined in C language. We cannot use keywords as an identifier for variable or function.

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