You seem to have an extra level, a hash with a single key. 

$ref->{Honda}->[0]="Civic";
$ref->{Honda}->[1]="Accord";
$ref->{Toyota}->[0]="Camry";
$ref->{Toyota}->[1]="Tundra";
$ref->{Toyota}->[2]="Corolla";

[download]

By the way, the arrow between indexes can be omitted. 

$ref->{Honda}[0]="Civic";
$ref->{Honda}[1]="Accord";
$ref->{Toyota}[0]="Camry";
$ref->{Toyota}[1]="Tundra";
$ref->{Toyota}[2]="Corolla";

[download]

It seems odd to refer to array indexes using a constant. 

$ref->{Honda}  = [ qw( Civic Accord         ) ];
$ref->{Toyota} = [ qw( Camry Tundra Corolla ) ];

[download]

Or if you were in a loop, 

push @{$ref->{Honda}}, 'Civic';
push @{$ref->{Honda}}, 'Accord';
push @{$ref->{Toyota}}, 'Camry';
push @{$ref->{Toyota}}, 'Tundra';
push @{$ref->{Toyota}}, 'Corolla';

[download]

In reply to Re^2: hashes with arrays by ikegami
in thread hashes with arrays by magawake

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.