Objective programming

Question 1

class Car
  def initialize(make, model)
    \_\_\_make = make
    \_\_\_model = model
  end
end

kitt = Car.new(“Pontiac”, “Trans Am”)

Answer 1

@

Question 2

class Car
  def initialize(\_\_\_, \_\_\_\_)
    @make = make
    @model = model
  end
end

kitt = Car.new(“Pontiac”, “Trans Am”)

Answer 2

make, model

Question 3

class Car
  \_\_\_ initialize(make, model)
    @make = make
    @model = model
  end
end

kitt = Car.new(“Pontiac”, “Trans Am”)

Answer 3

def

Question 4

class Car
  def initialize(make, model)
    @make = make
    @model = model
  end
end

kitt = Car.___(“Pontiac”, “Trans Am”)

Answer 4

new

Question 5

to make a global variable in methods

class MyClass
  \_\_\_\_my_variable = "Hello!"
end

puts ____my_variable

Answer 5

$

Question 6

class Person
  # Set your class variable to 0 on line 3
\_\_\_\_people_count = 0

  def initialize(name)
    @name = name
    # Increment your class variable on line 8
    @@people_count += 1
  end

  def self.number_of_instances
    # Return your class variable on line 13
    return @@people_count
  end
end

Answer 6

@@

Question 7

class Person
  # Set your class variable to 0 on line 3
  @@people_count = 0

  def initialize(name)
    @name = name
    # Increment your class variable on line 8
    \_\_\_\_\_\_
  end

  def self.number_of_instances
    # Return your class variable on line 13
    return @@people_count
  end
end

Answer 7

@@people_count += 1

Question 8

class Car
  def \_\_\_\_\_(make, model)
   @make = make
   @model = model
  end
end

kitt = Car.new(“Pontiac”, “Trans Am”)

Answer 8

initialize

Question 9

class Person
  # Set your class variable to 0 on line 3
  @@people_count = 0

  def initialize(name)
    @name = name
    # Increment your class variable on line 8
    @@people_count += 1
  end

  def \_\_\_\_\_.number_of_instances
    # Return your class variable on line 13
    return @@people_count
  end
end

Answer 9

self

Question 10

class Person
  @@people_count = 0

def initialize(name)
@name = name
@@people_count += 1
end

def self.number_of_instances
return @@people_count
end
end

matz = Person.new("Yukihiro")
dhh = Person.new("David")

puts “Number of Person instances: #_____”

Answer 10

{Person.number_of_instances}

Question 11

class Message
    @@messages_sent = 0
    def initialize(from, to)
        @from = from
        @to = to
        @@messages_sent += 1
    end
end

class Email ____ Message
def initialize(from, to)
___
end

end

my_message = Message.new(“me”, “you”)

Answer 11

super