OOP.ipynb

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   "cell_type": "code",
   "execution_count": 1,
   "id": "55b76e2c",
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   "outputs": [],
   "source": [
    "\n",
    "class Dog():\n",
    "    # Class object attribute\n",
    "    # Same for any instance of a class\n",
    "    species = \"Mammal\"\n",
    "    \n",
    "    def __init__(self, breed, name, spots):\n",
    "        self.breed = breed  #Can use any attribute after self.\n",
    "        self.name = name\n",
    "        self.spots = spots\n",
    "    \n",
    "    # Method in action:\n",
    "    def bark(self, number): # can take outside arguments, ex: number\n",
    "        print(\"Gheu-Gheu! My name is {} and the number is {}\".format(self.name, number))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "id": "9f56e1e6",
   "metadata": {},
   "outputs": [],
   "source": [
    "my_dog = Dog(breed = 'Huskie', name = 'Xoxo', spots = False)\n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "id": "5e7287df",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "__main__.Dog"
      ]
     },
     "execution_count": 3,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "type(my_dog)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 4,
   "id": "80e91455",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "'Mammal'"
      ]
     },
     "execution_count": 4,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "my_dog.species"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 5,
   "id": "feebbfff",
   "metadata": {},
   "outputs": [
    {
     "ename": "TypeError",
     "evalue": "bark() missing 1 required positional argument: 'number'",
     "output_type": "error",
     "traceback": [
      "\u001b[1;31m---------------------------------------------------------------------------\u001b[0m",
      "\u001b[1;31mTypeError\u001b[0m                                 Traceback (most recent call last)",
      "\u001b[1;32m<ipython-input-5-a26784952451>\u001b[0m in \u001b[0;36m<module>\u001b[1;34m\u001b[0m\n\u001b[1;32m----> 1\u001b[1;33m \u001b[0mmy_dog\u001b[0m\u001b[1;33m.\u001b[0m \u001b[0mbark\u001b[0m\u001b[1;33m(\u001b[0m\u001b[1;33m)\u001b[0m \u001b[1;31m# It takes () to call\u001b[0m\u001b[1;33m\u001b[0m\u001b[1;33m\u001b[0m\u001b[0m\n\u001b[0m",
      "\u001b[1;31mTypeError\u001b[0m: bark() missing 1 required positional argument: 'number'"
     ]
    }
   ],
   "source": [
    "my_dog. bark() # It takes () to call"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "0d516aee",
   "metadata": {},
   "outputs": [],
   "source": [
    "my_dog. bark(10)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "ef59554b",
   "metadata": {},
   "outputs": [],
   "source": []
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "13395eb4",
   "metadata": {},
   "outputs": [],
   "source": []
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "ef97af31",
   "metadata": {},
   "outputs": [],
   "source": []
  },
  {
   "cell_type": "code",
   "execution_count": 6,
   "id": "17a3b814",
   "metadata": {},
   "outputs": [],
   "source": [
    "class Circle():\n",
    "    \n",
    "    # class object attribute\n",
    "    pi = 3.14\n",
    "    \n",
    "    def __init__(self, radius = 1):\n",
    "        self.radius = radius\n",
    "        self.area = radius*radius*self.pi #can call this Circle.pi\n",
    "    # Method\n",
    "    \n",
    "    def get_circumference(self):\n",
    "        \n",
    "        return self.radius* self.pi *2"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 7,
   "id": "730dfe15",
   "metadata": {},
   "outputs": [],
   "source": [
    "my_circle = Circle(30)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 8,
   "id": "ab698264",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "30"
      ]
     },
     "execution_count": 8,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "my_circle.radius"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 9,
   "id": "b036e76b",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "3.14"
      ]
     },
     "execution_count": 9,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "my_circle. pi"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 10,
   "id": "3a510813",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "188.4"
      ]
     },
     "execution_count": 10,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "my_circle. get_circumference()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 11,
   "id": "6d3101e8",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "2826.0"
      ]
     },
     "execution_count": 11,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "my_circle.area"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "d20b5e0c",
   "metadata": {},
   "outputs": [],
   "source": []
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "b63b3e03",
   "metadata": {},
   "outputs": [],
   "source": []
  },
  {
   "cell_type": "markdown",
   "id": "51f1ac3e",
   "metadata": {},
   "source": [
    "# Inheritance"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 14,
   "id": "264669a4",
   "metadata": {},
   "outputs": [],
   "source": [
    "class Animal():\n",
    "    def __init__(self):\n",
    "        print(\"ANIMAL CREATED\")\n",
    "    \n",
    "    def who_am_i(self):\n",
    "        print(\"I am an animal\")\n",
    "        \n",
    "    def eat(self):\n",
    "        print(\"I am eating\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 15,
   "id": "b182c54f",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "ANIMAL CREATED\n"
     ]
    }
   ],
   "source": [
    "myanimal = Animal()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 16,
   "id": "277f9830",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "I am an animal\n"
     ]
    }
   ],
   "source": [
    "myanimal.who_am_i()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 17,
   "id": "2547e204",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "I am eating\n"
     ]
    }
   ],
   "source": [
    "myanimal.eat()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 21,
   "id": "c463e4dc",
   "metadata": {},
   "outputs": [],
   "source": [
    "# Re-use by inheriting\n",
    "class Dog(Animal):\n",
    "    def __init__(self):\n",
    "        Animal. __init__(self)\n",
    "        print(\"Dog Created\")\n",
    "# Overriding the old method\n",
    "    def who_am_i(self):\n",
    "        print(\"I am a dog\")  "
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 22,
   "id": "b55fb27a",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "ANIMAL CREATED\n",
      "Dog Created\n"
     ]
    }
   ],
   "source": [
    "mydog = Dog()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 23,
   "id": "2639d139",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "I am a dog\n"
     ]
    }
   ],
   "source": [
    "mydog.who_am_i()"
   ]
  },
  {
   "cell_type": "markdown",
   "id": "8f1dd8c1",
   "metadata": {},
   "source": [
    "# Polymorphism"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "a1cb2705",
   "metadata": {},
   "outputs": [],
   "source": []
  }
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