%-------------------------------------%
% Homework 3: problem 3.6             %
% Date: 9/30/02                       %
%                                     %
% Gun Srijuntongsiri                  %
% gs61                                %
% ??????                              %
%-------------------------------------%

% Ask for the day of the week
%  $num_day$ will contain its corresponding number of week.
userday = input('Enter a day : ','s');
userday = lower(userday);   % convert to lowercase

% First, do it with $if-elseif-else$
disp('Using if-elseif-else...');

% Compare with each day
if strcmp(userday,'sunday')
    num_day = 1
elseif strcmp(userday,'monday')
    num_day = 2
elseif strcmp(userday,'tuesday')
    num_day = 3
elseif strcmp(userday,'wednesday')
    num_day = 4
elseif strcmp(userday,'thursday')
    num_day = 5
elseif strcmp(userday,'friday')
    num_day = 6
elseif strcmp(userday,'saturday')
    num_day = 7
else
    disp('Incorrect day.');
end

% Second, by using switch
clear num_day

disp('Using switch...');

% Switch for the correct day
switch(userday)
  case {'sunday'}
    num_day = 1
  case {'monday'}
    num_day = 2
  case {'tuesday'}
    num_day = 3
  case {'wednesday'}
    num_day = 4
  case {'thursday'}
    num_day = 5
  case {'friday'}
    num_day = 6
  case {'saturday'}
    num_day = 7
  otherwise
    disp('Incorrect day.');
end