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What is the meaning of token and what are various types of tokens in C?

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What is the meaning of token and what are various types of tokens in C?
posted Jan 9, 2015 by anonymous

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tokens are the basic buildings blocks which are constructed together to write a program. In context of C each and every smallest individual units in a C program are known as C tokens.

C Language has six types of tokens -

  1. Keywords (Ex: for, while),
  2. Identifiers (Ex: functionname, variablename),
  3. Constants (Ex: 5, 10)
  4. Strings (Ex: “QueryHome”),
  5. Special symbols (Ex: (), {}),
  6. Operators (Ex: +, /,-,*)
answer Jan 9, 2015 by Salil Agrawal
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#include <stdio.h>
int main()
{
    char vowels[5]={'a','e','i','o','u'};
    int x;

    printf("Vowel Letters");
    for(x=0;x<=5;x++)
    {
         printf("\n %C",vowels[x]);
    }
}

Output

Vowel Letters
a
e
i
o
u
♣
Process exited after 0.1132 seconds with return value 3

What is the meaning of return value 3

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