Programming Tips - How do I declare, initialize and use 2D arrays in perl?

Date: 2012mar24
Language: perl

Q.  How do I declare, initialize and use 2D arrays in perl?

A.  Unlike compiled languages like C++ or Java
you don't declare variable to be a 2D array.

In Perl you make an array of array:

my @AoA = (
	[ "fred", "barney" ],
	[ "george", "jane", "elroy" ],
	[ "homer", "marge", "bart" ],
);

Notice there are round brackets on the outside and square brkacets on the inside.

More info
http://perldoc.perl.org/perldsc.html#ARRAYS-OF-ARRAYS