Few things on recent questions...
- From: Joseph Lee <joseph.lee22590@xxxxxxxxx>
- To: programmingblind@xxxxxxxxxxxxx
- Date: Wed, 09 Feb 2011 15:52:50 -0800
Hi guys,
Few things (mostly for Kristopher's benefit):
* Tyler is right: You cannot really use strings as part of the
switch statement. It will accept integer types such as
characters and ints (characters also, because it uses ASCII
table).
* Overall program flow (mostly for Kristopher): In my opinion,
start with the output test first - to really make sure that
output works as expected. Also, to help yourself with reading
the output, I suggest putting a new line character (endl) at the
end of your output code, like:
cout << "testing..." << endl;
If you are writing a text adventure or any kind of console
program, I suggest using a collection of smaller functions to do
the work for you. These functions can be put in as a header (h)
file so that you can test your output code, input, then each of
the functions in the header by the time you include this. This
has advantages, including porting over to object-oriented
approach (especially if you are planning to use a character or an
object class to do some work), flexibility and cleaner code and
so forth. As for overall thing on "goto," no info on that from
my end (I'm just learning stuff as of now).
* Conditionals: Tyler is right when saying that we do need else
if statements. Sometimes, we don't need it, partiularly if we
are comparing two different things or comparing two different
actions. For instance, if you are writing a program to print out
how many days are in a given month, you would use else if.
However, if your program has two ejitionals, with one comparing a
character vwithsus another comparing a string - that's when just
using if becomes handy (a more advanced example would be
inserting an item in a binary search tree, which I used a
combination of if/else if and a series of if statements).
* Program layout (again for Kristopher): As I said earlier, put
some one-liner comments - to remind yourself what you are doing
at that moment when the program is run. Also, try using small
functions to help you.
* Learning experience: I know that you are frustrated, but keep
this in mind: we are speaking from experience learning about
programming and investigating how the program would look like
when a CPU encounters it. It is better to learn simple things,
applying it and then moving onto more advanced materials. If I
were you, I'd start out with learning about if statements, then
switch, loops and onto functions. Right now I'm learning how to
implement tables using C++ - binary search tree and chained hash
table, which requires a lot of conditions and hours of
formulating the algorithm before I even start writing it down in
code.
As always, if you have any questions, feel free to ask us - and
I'm sure we'll try our best to help you, and in cases like this,
give some advice.
Cheers,
Joseph
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