if Statement

This statement is used to test a condition. If the condition is true then statements written inside if block are executed. In  C, any non zero value is considered as true while a zero is considered as false.

if( condition)

{

    statement;

     ............

}

Example :

#include<stdio.h>

void main()

{

int i;

scanf("%d",&i);

if(i)

  {

    printf(" A non zero value ");

  }

}