object-all-things.rb(main):001:0> #! /usr/bin/env ruby
object-all-things.rb(main):002:0* 
object-all-things.rb(main):003:0* 4
=> 4
object-all-things.rb(main):004:0> 4.class
=> Fixnum
object-all-things.rb(main):005:0> puts 4.class
Fixnum
=> nil
object-all-things.rb(main):006:0> 4 + 4
=> 8
object-all-things.rb(main):007:0> puts 4 + 4
8
=> nil
object-all-things.rb(main):008:0> 4.methods
=> [:to_s, :inspect, :-@, :+, :-, :*, :/, :div, :%, :modulo, :divmod, :fdiv, :**, :abs, :magnitude, :==, :===, :<=>, :>, :>=, :<, :<=, :~, :&, :|, :^, :[], :<<, :>>, :to_f, :size, :bit_length, :zero?, :odd?, :even?, :succ, :integer?, :upto, :downto, :times, :next, :pred, :chr, :ord, :to_i, :to_int, :floor, :ceil, :truncate, :round, :gcd, :lcm, :gcdlcm, :numerator, :denominator, :to_r, :rationalize, :singleton_method_added, :coerce, :i, :+@, :eql?, :remainder, :real?, :nonzero?, :step, :quo, :to_c, :real, :imaginary, :imag, :abs2, :arg, :angle, :phase, :rectangular, :rect, :polar, :conjugate, :conj, :between?, :nil?, :=~, :!~, :hash, :class, :singleton_class, :clone, :dup, :taint, :tainted?, :untaint, :untrust, :untrusted?, :trust, :freeze, :frozen?, :methods, :singleton_methods, :protected_methods, :private_methods, :public_methods, :instance_variables, :instance_variable_get, :instance_variable_set, :instance_variable_defined?, :remove_instance_variable, :instance_of?, :kind_of?, :is_a?, :tap, :send, :public_send, :respond_to?, :extend, :display, :method, :public_method, :singleton_method, :define_singleton_method, :object_id, :to_enum, :enum_for, :equal?, :!, :!=, :instance_eval, :instance_exec, :__send__, :__id__]
object-all-things.rb(main):009:0> 4.methods.each { |method| puts "4.#{method}" }
4.to_s
4.inspect
4.-@
4.+
4.-
4.*
4./
4.div
4.%
4.modulo
4.divmod
4.fdiv
4.**
4.abs
4.magnitude
4.==
4.===
4.<=>
4.>
4.>=
4.<
4.<=
4.~
4.&
4.|
4.^
4.[]
4.<<
4.>>
4.to_f
4.size
4.bit_length
4.zero?
4.odd?
4.even?
4.succ
4.integer?
4.upto
4.downto
4.times
4.next
4.pred
4.chr
4.ord
4.to_i
4.to_int
4.floor
4.ceil
4.truncate
4.round
4.gcd
4.lcm
4.gcdlcm
4.numerator
4.denominator
4.to_r
4.rationalize
4.singleton_method_added
4.coerce
4.i
4.+@
4.eql?
4.remainder
4.real?
4.nonzero?
4.step
4.quo
4.to_c
4.real
4.imaginary
4.imag
4.abs2
4.arg
4.angle
4.phase
4.rectangular
4.rect
4.polar
4.conjugate
4.conj
4.between?
4.nil?
4.=~
4.!~
4.hash
4.class
4.singleton_class
4.clone
4.dup
4.taint
4.tainted?
4.untaint
4.untrust
4.untrusted?
4.trust
4.freeze
4.frozen?
4.methods
4.singleton_methods
4.protected_methods
4.private_methods
4.public_methods
4.instance_variables
4.instance_variable_get
4.instance_variable_set
4.instance_variable_defined?
4.remove_instance_variable
4.instance_of?
4.kind_of?
4.is_a?
4.tap
4.send
4.public_send
4.respond_to?
4.extend
4.display
4.method
4.public_method
4.singleton_method
4.define_singleton_method
4.object_id
4.to_enum
4.enum_for
4.equal?
4.!
4.!=
4.instance_eval
4.instance_exec
4.__send__
4.__id__
=> [:to_s, :inspect, :-@, :+, :-, :*, :/, :div, :%, :modulo, :divmod, :fdiv, :**, :abs, :magnitude, :==, :===, :<=>, :>, :>=, :<, :<=, :~, :&, :|, :^, :[], :<<, :>>, :to_f, :size, :bit_length, :zero?, :odd?, :even?, :succ, :integer?, :upto, :downto, :times, :next, :pred, :chr, :ord, :to_i, :to_int, :floor, :ceil, :truncate, :round, :gcd, :lcm, :gcdlcm, :numerator, :denominator, :to_r, :rationalize, :singleton_method_added, :coerce, :i, :+@, :eql?, :remainder, :real?, :nonzero?, :step, :quo, :to_c, :real, :imaginary, :imag, :abs2, :arg, :angle, :phase, :rectangular, :rect, :polar, :conjugate, :conj, :between?, :nil?, :=~, :!~, :hash, :class, :singleton_class, :clone, :dup, :taint, :tainted?, :untaint, :untrust, :untrusted?, :trust, :freeze, :frozen?, :methods, :singleton_methods, :protected_methods, :private_methods, :public_methods, :instance_variables, :instance_variable_get, :instance_variable_set, :instance_variable_defined?, :remove_instance_variable, :instance_of?, :kind_of?, :is_a?, :tap, :send, :public_send, :respond_to?, :extend, :display, :method, :public_method, :singleton_method, :define_singleton_method, :object_id, :to_enum, :enum_for, :equal?, :!, :!=, :instance_eval, :instance_exec, :__send__, :__id__]
object-all-things.rb(main):010:0>