18. VS.

19. class Hello class Hello(object):
def initialize(name) def __init__(self, name):
@name = name self.name = name
end
def greet def greet(self):
print "Hello, " + print "Hello, " +
"#{@name}n" self.name
end
end Hello("mmm").greet()
Hello.new("mmm").greet

31. class Hello(object)
def __init__(self, name)
self.name = name
end
def greet(self)
print "Hello, " +
self.name
end
end
Hello("mmm").greet()

33. class Hello:
def initialize(name):
@name = name
def greet:
print "Hello, #{@name}n"
Hello.new("mmm").greet