Class methods are used for
implementing functionality
that is associated with a
particular class.
They are not tightly bound
to individual objects of
that class, also called instances.
When writing code, we should
use class methods exclusively
for defining a class-specific
functionality.
Let us take a look at an example:
In this example, we have
a class method called wheels
that displays the message
The car has 4 wheels.
Since cars usually have 4 wheels,
this method applies to all vehicles
in the Car class.
It is defined as a class method
and can be directly called on
the Car class itself.
Syntax to define a Class method:
It is necessary to add the
word self when defining
a Class Method.
Without the self word,
this becomes an instance
method which can only
be called on an instance
of the class.