CMIS 140
Lab exercise


As a review of while loops, copy and paste the examples from the class
notes (bring that up in a browser) and run them.


Write a program that displays a rectangle of stars of user-specified
size.  Here's an example of running it:

Enter size of rectangle 
5 4   <-----this is the user input
1****
2****
3****
4****
5****

Modify it so that displays the row number also at the end of
each row, like this:
1****1
2****2
3****3
4****4
5****5

Further modify it so that displays the column number also at the top of
each column, like this:
 1234
1****1
2****2
3****3
4****4
5****5


Modify it so that it displays the outer perimeter only, i.e. make it
display a "box":
*****
*   *
*   *
*   *
*****

Modify it so that it also displays a diagonal line of stars
from upper left to lower right corners of the box (hint: these
positions are where the row number is the same as the column number).


***********************************
Download and run the simpcalc.cpp that's at this web site.

Modify it into an infinite loop.

Get rid of the infinite loop (it was fun while it lasted) and modify it
that so it presents a numeric menu and switches on the menu choice.

Further modify it so that it writes the results to a disk file whose
name is specified by the user.  Run this creating files in different
folders:
myoutfile
\myfolder\myoutfile
c:\temp\myoutfile

Modify that to get its input from a disk file of the user's choosing.
Run it with a non-existent file.  Run it with a file you've created.