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C

if


Used for decision making, when the given condition is true. The if keyword indicates conditional execution of a block. The condition must evaluate to a boolean value.

Syntax:
if(condition)
{
    statement1;
}
else
{
    statement2;
}


Example:

#include 	

int main()                            /* Most important part of the program!  */
{
    int age;                          /* Need a variable... */
  
    printf( "Please enter your age" );  /* Asks for age */
    scanf( "%d", &age );                 /* The input is put in age */
    if ( age < 100 ) {                  /* if the age is less than 100 */
        printf ("you are pretty young!\n" ); /* just to show you it works... */
    }
    else if ( age == 100 ) {            /* i use else just to show an example */ 
        printf( "you are old\n" );       
    }
    else {
        printf( "you are really old\n" );     /* executed if no other statement is */
    }
  return 0;
}


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