What are the C Tokens?

The C program is a collection of instructions and each instruction is a collection of individual units.

Every small individual unit of a C program is generally called as token and every instruction in a C program is a collection of tokens.

Tokens are used to construct the C programs and they are also said to be the basic building blocks of a C program.

In a C program, tokens contain the following −

• Keywords
• Identifiers
• Operators
• Special Symbols
• Constants
• Strings
• Data values

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

Example

Following is the C program to print the capital alphabet characters −

#include<stdio.h>
#include<conio.h>
int main(){
   int i;
   printf("ASCII ==> Character\n");
   for(i = 65; i <= 90; i++)
      printf("%d ==> %c\n", i, i);
   return 0;
}

Output

When the above program is executed, it produces the following result −

ASCII ==> alphabet Character
65 ==> A
66 ==> B
67 ==> C
68 ==> D
69 ==> E
70 ==> F
71 ==> G
72 ==> H
73 ==> I
74 ==> J
75 ==> K
76 ==> L
77 ==> M
78 ==> N
79 ==> O
80 ==> P
81 ==> Q
82 ==> R
83 ==> S
84 ==> T
85 ==> U
86 ==> V
87 ==> W
88 ==> X
89 ==> Y
90 ==> Z