Change 
    %{$self->{_hash}} = ();

[download]

to 

    $self->{_hash} = {};

[download]

Output: 

this is cat data
cat:a,b,c,d,e,fcat2:g,h,i,j,k,l,m
this is cat keys
catcat2
this is dog data
dog1:1,2,3,4,5,6,7dog2:21,22,23,24,25
this is dog keys
dog1dog2

but....after creates the second object
this is cat data
cat:a,b,c,d,e,fcat2:g,h,i,j,k,l,m
this should be cat keys
catcat2
this is dog data
dog1:1,2,3,4,5,6,7dog2:21,22,23,24,25
this is dog keys
dog1dog2

[download]

In reply to Re: OO Perl: after it creates 2nd object overwrites hash from the first by FunkyMonk
in thread OO Perl: after it creates 2nd object overwrites hash from the first by flope004

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