Tushar,
Truthfully, all it really does is print
New
10
10
10
Below, I'll explain it line by line and show you how it really doesn't do
that much.
This is a hash where the key is "one" and the value is "15"...and so on,
respectively.
> %h = ( one => 15,
> two => 26,
> three => 37 );
All this does is delcare an empty array (a).
> my @a;
This loops through each item in the array "a" and adds 10 to the value that
is there (which is nothing).
It looks like they are attempting to compare the items in the array to the
items in the hash.
> foreach (@a {keys %h})
> {
> $_ = $_ + 10;
> }
>
This prints the word "New" and a new line character.
> print "New\n";
>
This loop prints each item in the array (a).
> foreach (@a{keys %h})
> {
> print "$_\n";
> }
Hope this helps,
Kevin
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