From: seebs@... (Peter Seebach)
Date: 2007-06-10T12:17:40+09:00
Subject: Re: Strange behavior of Array

In message <ae8a916c0706092013w592e1730y59b0c9d7d55d7005@mail.gmail.com>, "huang zhimin" writes
:
>I want a multidimensional array with initial value 0, so I create it by

>arr = Array.new(3, Array.new(3, 0))    =>     [[0, 0, 0], [0, 0, 0], [0, 0,
>0]]

You have now created an array consisting of three copies of the SAME
array [0,0,0].

This is a FAQ.

-s