Just to show a few students a little more about objects

everything_is_an_object.rb

# encoding: UTF-8
#
# I realized objects were hard to grasp
# You already understood the building blocks of programs(String, Fixnumb, Array, Hash)
#
# Look at the following to see what you can learn:

s1 = 'String is an object'
s2 = String.new('String is an object')

puts "s1 = 'String is an object'"
puts "s2 = String.new('String is an object')"

puts "Is s1 == s2 true?"
puts "Yes!" if s1 == s2

puts "*" * 80


h1 = {
  :mx => 'Mexico',
  :fr => 'France',
  :nl => 'Netherlands',
}
puts "h1 = {
  :mx => 'Mexico',
  :fr => 'France',
  :nl => 'Netherlands',
}"

puts "h1.class == Hash ?"
puts "Yes!" if h1.class == Hash

h2 = Hash.new
h2.store(:mx, 'Mexico')
h2.store(:fr, 'France')
h2.store(:nl, 'Netherlands')

puts "
h2 = Hash.new
h2.store(:mx, 'Mexico')
h2.store(:fr, 'France')
h2.store(:nl, 'Netherlands')
"
puts "Is h1 == h2 true?"
puts "Yes!" if h1 == h2

puts "*" * 80

puts "
What does this tell you about the syntax?
\"Primitive\" types are also objects with methods associated to their instances.
Every time you affect an instance you're calling an internal method even if the syntax
does not make it immediately clear to you.
"