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hash

perlperl
perlperl asked
on
Medium Priority
462 Views
Last Modified: 2012-05-05
Test1.pm

sub new
{
 my $proto = shift;
 my $class = ref($proto) || $proto;

 my $this = {
        HASHARG    => &_generateList()   ### this function returens hash (return \%hash   (format is $hash{124} = david))
 };
  bless $this, $class;
 return $this;
}

sub _generateList {
 #blahhhh
 my %hash;
 $hash{123} = 'john';
$hash[456} = 'adam';
 return \%hash;
}


sub display{
 $this = shift;
 ### how can i display the keys and valus of HASHARG  in thsi prt of code
}
Comment
Watch Question

Author

Commented:
i tried this it did not work

sub display
{
   my $this         = shift;
   foreach $k (keys %{$this->{HASHARG}} )
   {
      print "$k :::::: $this->{HASHARG}{$k} \n";
   }

}

Author

Commented:
if i try to print in the new()
   foreach $k (keys %{$this->{HASHARG}} )
   {
      print "$k :::::: $this->{HASHARG}{$k} \n";
   }

it works fine...



but when i call $obj->display()
it does not print the vakue
Hi perlperl,

If you are trying to debug a complex hash structure you could use Data::Dumper like this:

use Data::Dumper;

sub display {
    $this = shift;
    print Dumper( $this );
}

or you could just iterate through the key/value pairs like this:

sub display {
    $this = shift;
    foreach $k ( keys %$this ) {
        print "$k ::::: " . $this->{$k} . "\n";
    }
}

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Ask the Experts

Author

Commented:
actually the problem is solved..i was not calling the method properly

$obj->{TEST}->display()


i am havinf multiple inheritance...
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