variables

variables.rb

var = "this is a local variable"
@var = "this is an instance variable"
@@var = "this is a class variable"
$var = "this is a global variable"
VAR = "this is a constant"

def example_one
  var = "local"
  p "Yes this #{var} variable can be accessed here"
end
example_one 
p var # Cannot access it here.  It is not local anymore and will throw an error

def example_two
  @var = "instance"
  p "Yes this #{@var} variable can be accessed here"
end
example_two
p @var # Yes, this instance variable can be accessed here