add method to class

By hawker on Aug 24, 2005

This time a greeting is printed using an object-oriented approach.

# Add a new method (function) to class String.
# After we do this, all strings will know how to greet.
class String
  def greet
    puts "Hello, #{self}!"
  end
end

class Integer
  def greet
    self.times { puts "Hi, whoever you are." }
  end
end

# Now an integer has a different way of greeting than
# a string does.

"Tom".greet
3.greet
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Hawkee   -  Aug 24, 2005

Neat, I really like the object oriented structure of Ruby.

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