class Human
    MY_NAME = "Willie" #This is a constant
    attr_accessor :name #Defining get, set method for variable name
 
    def initialize(name)
        @name = name
    end
 
    def getpet
        puts @pet
    end
 
    def setpet=(pet)
        @pet = pet
    end
end
 
haha = Human.new('willie')
puts haha.name
 
hehe = Human.new('mingen')
puts hehe.name
hehe.setpet = 'cat'
hehe.getpet

Willie
mingen
cat