1.  What two operations change an array from the front or first element?



 2.  What two operations change an array from the last element?



 3.  Write the two Perl statements that would take array @a and make
     the 1st element into the last element.  (Using #1 and #2 operations).

                              [0]   [1]   [2]
                             -----------------
     For example, if @a is  | 100 | 200 | 300 | before the two statements,    
                             -----------------

                              [0]   [1]   [2]
                             -----------------
                it will be  | 200 | 300 | 100 | afterwards.    
                             -----------------



 4.  Write the two Perl statements that would take array @a and make
     the last element into the first element.  Using #1 and #2 operations).



 5.  Write the one Perl statement that would create array @numbers from
     the scalar variable $numberList.

    $numberList = "111;222;333;444";   # Assume ; separates each pair...



 6.  In the statement that follows, what term is used to describe the
     word 'Ghostbusters'?

     print "Ghostbusters came out in " . $yearOfMovie{'Ghostbusters'};


 7.  Write the statement that would create the string of colon separated
     values from the values in array @a.  Name the variable to hold the
     colon separated values string $myValues.

               [0]   [1]   [2]
             -------------------
     @a      | 111 | 222 | 333 |  would make $myValues string "111:222:333"    
             -------------------                               -----------




 8.  Write the single Perl statement that will cause the change in
     variable $data contents, as illustrated below.  Basically the vowels
     aeiou have been converted to uppercase AEIOU.

     $data = "abcdefghijklmnopqrstuvwxyz";

    
     MYSTERY PERL STATEMENT GOES HERE.


     print $data;  OUTPUT IS:  AbcdEfghIjklmnOpqrstUvwxyz
                               



 9.  What does the E in PERL stand for? 


10.  Assume that you have called the localtime(time) function and
     that array @colors has values as follows:

     @colors = qw(YELLOW GREEN BLUE ORANGE GRAY PINK PURPLE);

     ($sec,$min,$hour,$mday,$mon,$year,$wday,$yday,$dst) = localtime(time);  

     What statement would be used to store in the variable $BGColor
     the appropriate color for the day of the week, where we want
     Sunday to always be YELLOW, Monday to always be GREEN, etc.?




11.  What is the term that describes something the following Perl
         programmer apparently did not know about or is not taking
         advantage of?

     print "Volume is "  .  $volume  .   " for cylinder with height "  . 
           $height  .  " and radius "  .  $radius; 


12.  Write the Perl statement that would execute the Unix cal command
         and store the results in the variable $thisMonthsCalendar.

     Clearly indicate the syntax of your statement for any special
        symbols by shaping them so they are not confused with the
        wrong symbol from the keyboard.



13.  Here is a screen snapshot of the web page displayed by the
     showForm.cgi Perl script.  Write the showForm.cgi script.

     Name the text box with the name numValue (for your FORM). 

                  Computes the cube of a number     <---- BIG, BOLD LETTERS 
                                                            (heading style)
                           -----------
                       n: |           |
                           -----------

                    ********************
                    * Show cube of n   *     <----- This is the SUBMIT
                    ********************             button and it invokes
                                                     showCube.cgi Perl
                                                     script, that you 
                                                     write for question
                                                     number 14.




















14.  Write the showCube.cgi Perl script.  Remember, the names of
     the text box on the FORM is: 
                                  numValue.

     Your output could look like this, for a specific example:

     The cube of 5 is 125.    <------- THIS IS ALL THE OUTPUT YOU NEED...
                                       MAKE IT QUICK AND DIRTY so that
                                       showCube.cgi is a SMALL perl script.

     The cube of 7 is 343     <------- A second example

     The cube of 10 is 1000   <******* 3rd example is the charm...
















15.  A hash uses the symbol % to indicate that the Perl variable is
     a hash?  Explain why the % symbol is perfect syntactic expression
     for what a hash is?  Be very explicit and get into exactly what
     the % symbol looks like.  The % character has 3 parts, 2 circles
     and one slash / separating the two little circles.




16.  How many lines of output will the following program produce, if the 
     user typed in UNI at the ENTER DATA: prompt? 
     Note: Do not count the ENTER DATA: prompt as a line of output. All 
           other lines, including blank lines, count as output. 

     #------------------------------------------------------------------

       print "ENTER DATA: ";
       $data = <STDIN>;       # User typed in UNI. (SEE NOTE ABOVE!)

       while (length $data > 0)
       {
          print $data . "\n";
          chop $data;
       }

       print "\n ----------------- \nThat is all for this program! \n"; 
 
       #------------------------------------------------------------------