%lineOfStars: number => display row of asterisks
%Author: Terry Harvey CISC106, TA Bootsy Collins
%Description: prints a single row of asterisks, length given by the
%parameter.
%
%Examples
%lineOfStars(3) => *** 
%lineOfStars() => 
%lineOfStars(5) => *****
function [] = lineOfStars(len)
  if (len <= 0)
    fprintf('\n');
  else
    fprintf('*');
    lineOfStars(len - 1);
  end