C Tokens

1. Every C program is a collection of instructions and every instruction is a group of some individual units.
2. Every smallest particularly individual unit of a ‘C’ program is called token.
3. Every instruction used in any c program is a collection of tokens. The main and particular work of  tokens are to construct c programs and they are said to the basic building blocks of a c program also.
   
   In a c program, some very popular tokens are the following:-

1. Keywords
2. Identifiers
3. Operators
4. Special Symbols
5. Constants
6. Strings
7. Data values

In a C program, collection of all the keywords, identifiers, operators, special symbols, constants, strings and data values are called as tokens.

Let us see the following C program:-

C program to print all the characters of C character Set

#include<stdio.h>

#include<conio.h>

int main()

 {

        int i;

        clrscr();

        printf(“ASCII  ==>  Character\n”);

        for(i = -128; i <= 127; i++)

           printf(“%d    ==>     %c\n”, i, i);

        getch();

        return 0;

}

In the above program 22 tokens are used.