Class is an object

Are you really into a position to justify these outputs??
If so, means your OOP concepts in RUBY is clear else ……..

class Acer
 // Jacobian Code
end

Acer.class      > Class
Acer.superclass >  Object
Class.superclass> Module

2.class        > Fixnum
2.988888.class > Float
-2.class       > Fixnum
"2".class      > String
0x22.class     > Fixnum

Class.class    > Class
nil.class      > NilClass
self.class     > Object
Object.class   > Class
Object.type    > Class
Time.class     > Class
Time.now.class > Time

Instance var Vs Class var

# class varibale starts with @@
# Must be initialized before they are used
# A class variable is shared among all objects of a class
# There is only one copy of a particular class variable for a given class
# It is also accessible to the class methods

#Sometimes a class needs to provide methods that work without being tied to any particular object.
# For example the “new” method creates a new object but is not itself associated with a particular application.
# And you are calling them as App.new() rather than calling as obj1.new() or obj2.new()
#Hence “new” will be said as a class method not an instance method.

#class methods sprinkled throughout the Ruby librariesclass methods sprinkled throughout the Ruby libraries. other eg File.delete associated with File class

# $super_count – global variable – Can access anybody
# @@count – class varibles – Change will be reflected to all
# @call – instance variobles – Change will be reflected in only concern method
# callme – instance method -
# new – class method

#Class methods are defined by placing the class name and a period in front of the method name.

class App
    $super_count = 111
    @@count = 0
    def initialize (caller)
        @call = caller
    end

    # instance method
    def callme
       p “called using #{@call}”
       @@count+=1
    end

    # class method
    def App.callmetoo
        p “called using callmetoo”
        @@count+=1
    end
end

obj1 = App.new(”OBJECT1?)
obj2 = App.new(”OBJECT2?)
p obj1.callme
p obj2.callme
p App.callmetoo
p $super_count #can be access outside the class
#p App.@@count #cant access outside the class

OUTPUT
“called using OBJECT1?
1
“called using OBJECT2?
2
“called using callmetoo”
3
111