if                       if Statement
 
     if (expression)
          statement1;
     [else
          statement2;]
 
      Notes:    The parentheses are required around expression.
 
                Statement1 is executed when expression is TRUE (non
                zero).
 
  -------------------------------- Example ---------------------------------
 
           if (i < 4)
               process(SMALL);
 
           if (i < 4)
               process(SMALL);
           else if (i < 10)
               process(MEDIUM);
 
    An `else' always belongs to the most recent `if', so the second
    `else' in this next example--else process(LARGE)--belongs to:
    if (i < 10).
 
           if (i < 4)
               process(SMALL);
           else if (i < 10)
               process(MEDIUM);
           else
               process(LARGE);

Seealso:


 else