No, it isn't. But if you want to just quick-n-dirty interpolate, you could do something like

    print "Key value pair in hash: @{[%hash]}";
[download]

which evaluates the hash in list context, and prints its entries in unsorted order:

Key value pair in hash: k2 v2 k1 v1 k3 v3
[download]

Can you de-construct this "@{[%hash]}" please.

     @{            }    interpret as an array
        [        ]      ???
          %hash         The hash
[download]

Is that the Anon Array constructor? What is its function here?

---

It is always better to have seen your target for yourself, rather than depend upon someone else's description.

[%hSomeHash] creates an array reference populated by all of the members of %hSomeHash. @{} says extract the array from the array reference found between {...}.

Best, beth

Fentastic its working
but why the order has changed.
Thank you
Anbarasu

but why the order has changed

A hash is unordered. See Tie::Hash::Sorted for keeping hashes sorted.

-- 
Ronald Fischer <ynnor@mm.st>

Aside from the typo (missing comma after the first key=>value declaration) the rest of your question would have been answered by using perldoc -q hash, whence came this answer:

#!/usr/bin/perl
use strict;
use warnings;
# 748500

my %hash =('k1'=>'v1','k2'=>'v2','k3'=>'v3');

while ( (my $key, my $value) = each %hash) {
    print "$key = $value\n";
}
[download]

which prints:

k2 = v2
k1 = v1
k3 = v3
[download]

Updates:

• s/command/comma/ in typo description.
• If you want to restore the order, use sort; if you need to retain the order see Tie::IxHash

is there any way to display content of hash

Data::Dumper

You can't get hash values directly.
You can use foreach to get the hash values.

Someone else beat me to it... Data::Dumper.

Perl does not take it upon itself to “know how to” print everything. It has a certain built-in way to “stringify” various things, and you've already seen what it does by-default for a hashref.

For a situation like yours, several good possibilities have already been suggested. Take your pick.

I think that this is also a good place to say, use CPAN, frequently and aggressively. Anytime you suspect that “someone must have already encountered and tackled this problem,” rest assured that they have, and you'll find it (maybe dozens of flavors of it...) on CPAN. Get in the habit of looking there first.