Author: Hongyu

The following script would fail

use strict;

my %hash = (-id => 10, -name => ‘Hongyu’);
my %hash2;

$hash2{hash} = %hash;
print $hash2{hash}{-id}, “\n”;

The problem here is that initializing a Perl hash value with a hash is impossible, need to use reference instead

use strict;

my %hash = (-id => 10, -name => ‘Hongyu’);
my %hash2;

$hash2{hash} = \%hash;
print $hash2{hash}->{-id}, “\n”;

Talk about configuration of Eclipse, http://www.eclipsezone.com/eclipse/forums/t61618.html

My office Linux server has dual CPUs and 2 GB memory, and the parameters that I am using are
-vmargs -Xms128M -Xmx512M -XX:PermSize=128M -XX:MaxPermSize=256M