It'd be very neat if you separated your code and placed it within the special "<code>" and "</code>" tags.

"Do we need to declare array elemnts in double quotes"

@array1 = ('one','two','three');
@array2 = ("four","five","six");
print "@array1\n@array2";

#OUTPUT
one two three
four five six
[download]

You can use Perl's quote like operators instead if you did not want to use quotes, however, using single quotes and double quotes can be critical when you want to interpolate ...consider the following quick example and see the differences in the output...

@array = qw(one two three);
print @array, "\n";
print "@array\n";
print '@array\n';
__END__
onetwothree            #array elements are fused.
one two three          #spaced and the "\n" replaced with a new line.
@array\n               #prints @array and "\n" as literals.
[download]

Let's expand on... Guess what the outcome of the code below is, as an exercise :

use strict;    #a good habit to start your program with line
use warnings;  #another good habit too...

my @array1 = ("one", "two", "five");
my @array2 = ("three","four");

my @array3 = ("one","two",@array2,"five");
my @array4 = ("one","two",'@array2',"five");
my @array5 = ("one","two","@array2","five");
print "@array3\n";
print "@array4\n";
print "@array5\n";
[download]

You can loop through your array with a for loop iteration too and using an incremented index allows you to access array elements in turns.

@array = qw(one two three four);
for($index=0;$index<=$#array;$index++){
     print $array[$index],"\n";
     }
[download]

Read more at for loops and foreach loops, other than that, you can try and see for yourself if something really works and observe the behavior differences by experimenting on your options, this can let you discover new things as well as solidify your knowledge of something you learnt..

Update: Added examples...

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