We have already discovered that the a variable is not given a sensible value when you declare it. Instead you must remember to give it a sensible value before you use it. We can combine the declaration and initialization into a single action if we wish:

/* counter for the sheep */
int sheep = 0 ; 

This would create an integer variable called sheep which is then set to the value 0. If we want we can perform multiple declaration and initialization (and without a safety net too!)

/* .. as used by Old MacDonald.. */
int sheep = 0,
goats = 0,
cows  = 0,
pigs  = 0 ; 

I have spread the declaration over a number of lines. The compiler doesn't mind this, and I think it makes the code look clearer.

/*  Simple Variable  */
void main ( void )
{
  /* create an integer variable  */
  int count ;
  set the value to 99            */
  count = 99 ;
  /* increase count by 1         */
  count = count + 1 ;
}