23-OOPClasses.ipynb

{
 "cells": [
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## class"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 1,
   "metadata": {},
   "outputs": [],
   "source": [
    "my_list = list()"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# instance & attribute"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "metadata": {},
   "outputs": [],
   "source": [
    "# snake= my_string\n",
    "# camel= myString"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 52,
   "metadata": {},
   "outputs": [],
   "source": [
    "class Musician():\n",
    "    \n",
    "    job = \"musician\"\n",
    "    \n",
    "    def __init__(self,name,age,instrument):\n",
    "        self.name = name\n",
    "        self.age = age\n",
    "        self.instrument = instrument\n",
    "        \n",
    "    #Method\n",
    "    \n",
    "    def sing(self):\n",
    "        print(f\"We are the champions! {self.instrument}\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 53,
   "metadata": {},
   "outputs": [],
   "source": [
    "my_musician = Musician(\"James\", 50, \"Guitar\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 54,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "50"
      ]
     },
     "execution_count": 54,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "my_musician.age"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 55,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "'James'"
      ]
     },
     "execution_count": 55,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "my_musician.name"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 56,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "'Guitar'"
      ]
     },
     "execution_count": 56,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "my_musician.instrument"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 57,
   "metadata": {},
   "outputs": [],
   "source": [
    "my_musician.job = \"singer\""
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 58,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "'singer'"
      ]
     },
     "execution_count": 58,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "my_musician.job"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 59,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "We are the champions! Guitar\n"
     ]
    }
   ],
   "source": [
    "my_musician.sing()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 76,
   "metadata": {},
   "outputs": [],
   "source": [
    "class DogYears():\n",
    "    \n",
    "    year_factor = 7\n",
    "    \n",
    "    def __init__(self,age=5):\n",
    "        self.age = age\n",
    "        self.age_multiplied = age * 7\n",
    "    \n",
    "    def calculation(self):\n",
    "        return self.age * DogYears.year_factor"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 77,
   "metadata": {},
   "outputs": [],
   "source": [
    "my_dog = DogYears()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 78,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "35"
      ]
     },
     "execution_count": 78,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "my_dog.calculation()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 79,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "35"
      ]
     },
     "execution_count": 79,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "my_dog.age_multiplied"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# inheritance"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 80,
   "metadata": {},
   "outputs": [],
   "source": [
    "class Class1():\n",
    "    \n",
    "    def __init__(self):\n",
    "        print(\"Class 1 created\")\n",
    "    \n",
    "    def method_1(self):\n",
    "        print(\"method 1\")\n",
    "    \n",
    "    def method_2(self):\n",
    "        print(\"method 2\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 81,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Class 1 created\n"
     ]
    }
   ],
   "source": [
    "my_instance = Class1()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 82,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "method 1\n"
     ]
    }
   ],
   "source": [
    "my_instance.method_1()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 83,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "method 2\n"
     ]
    }
   ],
   "source": [
    "my_instance.method_2()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 91,
   "metadata": {},
   "outputs": [],
   "source": [
    "class Class2(Class1):\n",
    "    \n",
    "    def __init__(self):\n",
    "        Class1.__init__(self)\n",
    "        print(\"Class 2 created\")\n",
    "    \n",
    "    def method_3(self):\n",
    "        print(\"method 3\")\n",
    "        \n",
    "    #override\n",
    "    \n",
    "    def method_1(self):\n",
    "        print(\"method 1 override\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 92,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Class 1 created\n",
      "Class 2 created\n"
     ]
    }
   ],
   "source": [
    "my_instance_2 = Class2()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 93,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "method 2\n"
     ]
    }
   ],
   "source": [
    "my_instance_2.method_2()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 94,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "method 3\n"
     ]
    }
   ],
   "source": [
    "my_instance_2.method_3()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 96,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "method 1 override\n"
     ]
    }
   ],
   "source": [
    "my_instance_2.method_1()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 97,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "method 1\n"
     ]
    }
   ],
   "source": [
    "my_instance.method_1()"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# Polymorphism"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 98,
   "metadata": {},
   "outputs": [],
   "source": [
    "class Apple():\n",
    "    \n",
    "    def __init__(self,name):\n",
    "        self.name = name\n",
    "    \n",
    "    def information(self):\n",
    "        return self.name + \" 100 calories\""
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 99,
   "metadata": {},
   "outputs": [],
   "source": [
    "class Banana():\n",
    "    \n",
    "    def __init__(self,name):\n",
    "        self.name = name\n",
    "    \n",
    "    def information(self):\n",
    "        return self.name + \" 200 calories\""
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 100,
   "metadata": {},
   "outputs": [],
   "source": [
    "banana = Banana(\"banana\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 101,
   "metadata": {},
   "outputs": [],
   "source": [
    "apple = Apple(\"apple\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 102,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "'banana 200 calories'"
      ]
     },
     "execution_count": 102,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "banana.information()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 103,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "'apple 100 calories'"
      ]
     },
     "execution_count": 103,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "apple.information()"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 104,
   "metadata": {},
   "outputs": [],
   "source": [
    "fruit_list = [banana,apple]"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 105,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "banana 200 calories\n",
      "apple 100 calories\n"
     ]
    }
   ],
   "source": [
    "for fruit in fruit_list:\n",
    "    print(fruit.information())"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 106,
   "metadata": {},
   "outputs": [],
   "source": [
    "def get_info(fruit):\n",
    "    print(fruit.information())"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 107,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "banana 200 calories\n"
     ]
    }
   ],
   "source": [
    "get_info(banana)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 108,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "apple 100 calories\n"
     ]
    }
   ],
   "source": [
    "get_info(apple)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  }
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