need help in creating multi dimensional array

uva has asked for the wisdom of the Perl Monks concerning the following question:

how to create multi dimensional arrays in perl.since what ever we give, like

 
$array[1] [2]='help'; 
print $array[1][2]; and 
$peanut[0]->[0]->[0] ='cracked';
print $peanut[0]->[0]->[0] ;
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,it takes and print the value. how can we limit the size eg : in c we give

 
"int dim[3] [4];"
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