programming-examples/perl/Class/A Perl class is a package containing a collection of variables and functions, called properties and methods.pl

There is no "class" keyword. 
The properties are variables used to describe the object. 
Methods are functions that create and manipulate the object. 
Objects are created with the bless function.

#Creating a Class

package Pet

sub new{ # Constructor
    my $class = shift;
    my $pet = {
        "Name"  => undef,
        "Owner" => undef,
        "Type"  => undef,
    };
    bless($pet, $class);
    sub set_pet{    
        my $self = shift;
        my ($name, $owner, $type)= @_;
        $self->{'Name'} = $name;
        $self->{'Owner'}= $owner;
        $self->{'Type'}= $type;
    }
    sub get_pet{
    my $self = shift;
    while(($key,$value)=each($%self)){
        print "$key: $value\n";
    }
}

#Instantiating a Class

$cat = Pet->new(); 
# Create an object with a constructor method
$cat->set_pet("Sneaky", "Mr. Jones", "Siamese");
# Access the object with an instance
$cat->get_pet;