declaration in c code example

Example 1: declare variable in c

int    i, j, k;
char   c, ch;
float  f, salary;
double d;

Example 2: define in c

#define CNAME value

Example 3: declaration in c

#include<stdio.h>
#include<conio.h>
void main()
{
//variable declaration
	int a;
  //assinging value to a variable;
    a=10;
}