class Dog
	string name
  	int age
 
 		void bark()
			print name + " says woof"
 		end bark
endclass

void main()
  Dog fluffy
  fluffy.name = "Muff"
  Dog spot
  spot.name = "Spot"
  spot.age = 3
  spot.bark()
  fluffy.bark()
end main

----------------------------
class Dog
	string name
  	int age
 
		void birthday()
			print "happy birthday " + name
			age = age + 1
			print name + " is now " + age
		end birthday
endclass

void main()
	Dog fluffy
	fluffy.name = "Spot"
	string s = fluffy.name + "y"
	print s
	fluffy.age = 3
	fluffy.birthday()
	fluffy.birthday()
	fluffy.birthday()
	int x = fluffy.age * 5
	print x
end main

----------------------------
class Dog
	string name
  	int age
	double fleaWeights[100]
	Cat buddy
endclass

class Cat
		string name
endclass

----------------------------
class Owl
	string name
	int feathers
	boolean hungry
	
	void fly()
		print name + " is flying"
		hungry = true
	end fly
	
	void eat()
		print name + " is eating"
		hungry = false
	end eat
end class

void main()
	Owl henry
	Owl hooty
	henry.name = "Henry"
	hooty.name = "Hooty"
	henry.eat()
	henry.fly()
	hooty.fly()
	hooty.eat()
	henry.feathers = 2000
	hooty.feathers = henry.feathers * 2
end main