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Completed Panda Assignment #26

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Completed Panda Assignment #26

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23a9006
Started Panda assignment
May 15, 2014
ef11a39
Finished Panda assignment
May 15, 2014
fbc9e07
Tiger assignment
May 28, 2014
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46 changes: 46 additions & 0 deletions panda.rb
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Original file line number Diff line number Diff line change
@@ -0,0 +1,46 @@
class Vehicle
@@wheels = 4
attr_accessor :color, :make, :model

def initialize(color, make, model)
@color = color
@make = make
@model = model
end

def update(hash)
unless hash[:color].nil?
@color = hash[:color]
end
unless hash[:make].nil?
@make = hash[:make]
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I would probably "in-line" this... good rule of thumb, use in-line if there is only one statement in your "if/unless"

@make = hash[:make] if hash[:make]

Or, the example before:

@make = hash.fetch(:make, @make)
### which is similar to 
@make = hash.fetch(:make) {@make}

end
unless hash[:model].nil?
@model = hash[:model]
end
end

def wheels
"This vehicle has #{@@wheels} wheels."
end
end

automobile = Vehicle.new("Red", "Porsche", "911")
puts automobile.wheels
puts "Created an automobile with the following information:
Make: #{automobile.make}
Model: #{automobile.model}
Color: #{automobile.color}"

update_hash = { :color => "Green", :make => "Toyota", :model => "Tacoma" }
automobile.update(update_hash)
puts "Updated the automobile's make model and color:
Make: #{automobile.make}
Model: #{automobile.model}
Color: #{automobile.color}"

automobile.update({:color => "Black"})
puts "Updated the automobile's color only
Make: #{automobile.make}
Model: #{automobile.model}
Color #{automobile.color}"
38 changes: 38 additions & 0 deletions tiger.rb
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Original file line number Diff line number Diff line change
@@ -0,0 +1,38 @@
class Vehicle
@@wheels = 4
attr_accessor :color, :make, :model

def initialize(color, make, model)
@color = color
@make = make
@model = model
end

def update(hash)
unless hash[:color].nil?
@color = hash[:color]
end
unless hash[:make].nil?
@make = hash[:make]
end
unless hash[:model].nil?
@model = hash[:model]
end
end

def wheels
"This vehicle has #{@@wheels} wheels."
end
end

class Automobile < Vehicle

end

class Motorcycle < Automobile
def self.wheels
"This vehicle has 2 wheels."
end
end

puts Motorcycle.wheels