12_oop(Classes and Instances).ipynb

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  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# Class:"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 1,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "<__main__.Employee object at 0x00000197DC19DA60>\n",
      "<__main__.Employee object at 0x00000197DC2F2100>\n"
     ]
    }
   ],
   "source": [
    "class Employee:\n",
    "    pass\n",
    "\n",
    "emp_1 = Employee()\n",
    "emp_2 = Employee()\n",
    "\n",
    "print(emp_1)\n",
    "print(emp_2)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "metadata": {},
   "outputs": [],
   "source": [
    "emp_1.first = 'John'\n",
    "emp_1.last = 'Shiffer'\n",
    "emp_1.pay = 2000\n",
    "emp_1.email = 'John@gmail.com'\n",
    "\n",
    "emp_2.first = 'Jack'\n",
    "emp_2.last = 'Wailer'\n",
    "emp_2.pay = 3000\n",
    "emp_2.email = 'Jack@gmail.com'"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 5,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "John@gmail.com\n",
      "Jack@gmail.com\n"
     ]
    }
   ],
   "source": [
    "print(emp_1.email)\n",
    "print(emp_2.email)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 6,
   "metadata": {},
   "outputs": [],
   "source": [
    "class Employee:\n",
    "    def __init__(self, first, last, pay):\n",
    "        self.first = first\n",
    "        # self.fn = first\n",
    "        self.last = last\n",
    "        self.pay = pay\n",
    "        self.email = first + '.' + last + '@gmail.com'"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 9,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Aram\n",
      "Aram.Rostamitabar@gmail.com\n",
      "Sina\n",
      "Sina.Khalili@gmail.com\n"
     ]
    }
   ],
   "source": [
    "emp_1 = Employee('Aram', 'Rostamitabar', 2500)\n",
    "print(emp_1.first)\n",
    "print(emp_1.email)\n",
    "emp_2 = Employee('Sina', 'Khalili', 3000)\n",
    "print(emp_2.first)\n",
    "print(emp_2.email)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 11,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Aram Rostamitabar\n"
     ]
    }
   ],
   "source": [
    "print('{} {}'.format(emp_1.first, emp_1.last))\n",
    "# not a good work\n",
    "# so what ?"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 18,
   "metadata": {},
   "outputs": [],
   "source": [
    "class Employee:\n",
    "    def __init__(self, first, last, pay):\n",
    "        self.first = first\n",
    "        # self.fn = first\n",
    "        self.last = last\n",
    "        self.pay = pay\n",
    "        self.email = first + '.' + last + '@gmail.com'\n",
    "        \n",
    "    def fullname(self):\n",
    "        return '{} {}'.format(self.first, self.last)"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 19,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Aram Rostamitabar\n"
     ]
    }
   ],
   "source": [
    "emp_1 = Employee('Aram', 'Rostamitabar', 2500)\n",
    "# print(emp_1.fullname)\n",
    "print(emp_1.fullname())\n",
    "# Do not forget the self arg in METHODS"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 20,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Aram Rostamitabar\n"
     ]
    }
   ],
   "source": [
    "# The code above is like the code below:\n",
    "print(Employee.fullname(emp_1))"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {},
   "outputs": [],
   "source": []
  }
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