programming-examples/perl/Class/A Perl class is a package containing a collection of variables and functions, called properties and methods.pl
2019-11-15 12:59:38 +01:00

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Perl

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;