Help On Hashes

[rajiv07]

Hi to all,

How do i print the hashes in the stored manner.because when i print the hash value it print random order by default. But i want the value by the stored
manner.

Here i am using this hash

[CODE=perl]my %status=('Payme nt Received'=>PR,' Order Under processing'=>'U nder processing','Sh ipped From WareHouse'=>SWH ,Courier=>C,Del ivered=>D);

or $key(keys %status)
{
print "$key \t $status{$key}";
print "\n";
}
[/CODE]
The output will be

Delivered D
Order Under processing Under processing
Payment Received PR
Courier C
Shipped From WareHouse SWH

But I want

Payment Received PR
Order Under processing Under processing
Shipped From WareHouse SWH
Courier C
Delivered D


Thanks

Regards
Rajiv

[mehj123]

Hi to all,

How do i print the hashes in the stored manner.because when i print the hash value it print random order by default. But i want the value by the stored
manner.

Here i am using this hash

[CODE=perl]my %status=('Payme nt Received'=>PR,' Order Under processing'=>'U nder processing','Sh ipped From WareHouse'=>SWH ,Courier=>C,Del ivered=>D);

or $key(keys %status)
{
print "$key \t $status{$key}";
print "\n";
}
[/CODE]
The output will be

Delivered D
Order Under processing Under processing
Payment Received PR
Courier C
Shipped From WareHouse SWH

But I want

Payment Received PR
Order Under processing Under processing
Shipped From WareHouse SWH
Courier C
Delivered D


Thanks

Regards
Rajiv

Hi Rajiv,
Why dont you use keys like 1,2,3 etc and let these keys point to the values.i.e

1=>PR,
2=>Under processing etc

and in your code replace '1' by Payment Received.. I think you can maintain the order of addition by this way only.
To make it simpler you can use the Tie::IxHash module. See the example here

[rajiv07]

Thank U mehj123.Let me try and i will report the status to u.

regards
Rajiv

[numberwhun]

Hi to all,

How do i print the hashes in the stored manner.because when i print the hash value it print random order by default. But i want the value by the stored
manner.

Here i am using this hash

[CODE=perl]my %status=('Payme nt Received'=>PR,' Order Under processing'=>'U nder processing','Sh ipped From WareHouse'=>SWH ,Courier=>C,Del ivered=>D);

or $key(keys %status)
{
print "$key \t $status{$key}";
print "\n";
}
[/CODE]
The output will be

Delivered D
Order Under processing Under processing
Payment Received PR
Courier C
Shipped From WareHouse SWH

But I want

Payment Received PR
Order Under processing Under processing
Shipped From WareHouse SWH
Courier C
Delivered D


Thanks

Regards
Rajiv

What you have to realize is that a hash is NOT an array. It is a list of key=>value pairs with no specific order. How you added to the list does not impact how the values are stored or returned to you.

You can sort a hash, but it won't be in the order you added them. Here is one link that can tell you a little about hashes, but I would seriously consider getting the "Learning Perl" book (Llama book) and reading its information as it is quite helpful.

Regards,

Jeff

[KevinADC]

use an array to store the hash keys in the order you want to display them:

my @keys = ('Payment Received', 'Order Under processing', 'Shipped From WareHouse', 'Courier', 'Delivered')

my %status=('Payment Received'=>PR,'Order Under processing'=>'Under processing','Shipped From WareHouse'=>SWH,Courier=>C,Delivered=>D); 

foreach my $key (@keys) {
   print "$key = $status{$key}\n";
}

[mehj123]

use an array to store the hash keys in the order you want to display them:

my @keys = ('Payment Received', 'Order Under processing', 'Shipped From WareHouse', 'Courier', 'Delivered')

my %status=('Payment Received'=>PR,'Order Under processing'=>'Under processing','Shipped From WareHouse'=>SWH,Courier=>C,Delivered=>D); 

foreach my $key (@keys) {
   print "$key = $status{$key}\n";
}

Wow... this is clean and simple to understand also..... A lot better than my 1,2,3.... :) Thanks

[KevinADC]

Wow... this is clean and simple to understand also..... A lot better than my 1,2,3.... :) Thanks

Using numbered hash keys is really sort of using the wrong tool for the job, you may as well just use an array and use the numbers as the index value of each element of the array and then you automatically have an ordered list. Then call each array element using its index number instead of a numbered hash key. But you could use numbers for the hash keys if you really wanted to.

[ntraj]

hey
first u say clearly wat u want?

y u confused?

[KevinADC]

hey
first u say clearly wat u want?

y u confused?

Clearly? Look at what you posted, it's about as clear as mud. If you wish to particpate and help, please do, but posting dumb comments written like you are talking to your myspace "friends" are not welcome.