Transitions to C++ project 1
Due: Thursday Jan 28th at 11:59pm
This project is intended to get you used to our computing environment
and starting to use C++. It is a very small C++ program, but if you
wait to the last minute, frustration at learning the new environment in
a limited time may prevent you from completing it.
Details section below is
updated! find information on old c/c++ style strings at the bottom of
the details section. see the heading for character strings in C++
You might find my introduction to
working on Linux/unix at BSC page to be of use if you have not
worked on our compute server before.
Create a new folder in your home directory for this project. Do all of
your work in that folder.
Write a short "hello me" program in C++. Have the program prompt the
user to enter his/her name, and then print out "hello X" with X
replaced with the name that the user typed in.
Compile and run the program then write your readme.txt.
inside of your folder, you need to have a readme.txt with
when you have completed the program and the readme zip up the whole
folder and submit it. (I recommend using konqueror to compress the
folder. right click on the folder, choose the compress submenu, from
there choose one of the compress as options. Submit the
- your name
- the line you used to compile your program. (I'll recompile when
- Any problems you had/anything left undone.
Character Strings in C++
Today C++ have a template class for strings. We will cover that class
in a couple of weeks. In the meantime we will use the original c/c++
strings which are character arrays. In this old style string, the end
of the text is denoted by a special NULL character. The null character
is denoted as "\0" in a string in c++. (you can use the same \ escape
sequences from java in your c++ strings.)
You can create an array as a local variable in c++ with the following syntax:
will create an array of 50 characters named person. You can now access
any element of the array (any character in the string) using the array
reference operator . C++ arrays use zero based indexing just like
java arrays do.
char firstInitial = person;
or even change a character in the array
person = 'a';
You can also use the array as is with cin and cout.
cin >> person;
will put whatever characters the user types into the variable person.
There are actually potential problems with this in the form of buffer
overflow errors, but as long as the user didn't type more than 49
characters (remember you need one character in the array for the null
terminating '\0' character.) the program will work fine.
from the command line on csdev01, use the following line to move into
then use this line to run the submit program:
This will pop up a window allowing you to choose your class (and
possibly section) and the file to submit. When you have done so press
submit and in a few seconds (longer if you submit a really large file)
you will see a dialog pop up telling you your submission was sucessful.