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# LAB | Object-Oriented Programming (OOP) in Python #137

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# LAB | Object-Oriented Programming (OOP) in Python #137

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66 changes: 41 additions & 25 deletions lab-oop_in_python.ipynb
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Original file line number Diff line number Diff line change
Expand Up @@ -32,18 +32,27 @@
"cell_type": "code",
"execution_count": null,
"metadata": {},
"outputs": [],
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"240 18\n"
]
}
],
"source": [
"# Your code here\n",
"class Vehicle:\n",
" # Hint: Define __init__ method with parameters for max_speed and mileage\n",
" pass\n",
" def __init__(self, max_speed, mileage): # Hint: Add constructor with parameters\n",
" self.max_speed = max_speed\n",
" self.mileage = mileage\n",
"\n",
"# Example instantiation\n",
"modelX = Vehicle() # Create an instance of Vehicle\n",
"modelX = Vehicle(240, 18) # Create an instance of Vehicle\n",
"\n",
"# Print attributes\n",
"print(modelX.max_speed, modelX.mileage) # Expected output: (value of max_speed, value of mileage)"
"print(modelX.max_speed, modelX.mileage) # Expected output: 240 18"
]
},
{
Expand All @@ -56,7 +65,7 @@
},
{
"cell_type": "code",
"execution_count": 2,
"execution_count": null,
"metadata": {},
"outputs": [
{
Expand All @@ -70,10 +79,11 @@
"source": [
"# Your code here\n",
"class Vehicle:\n",
" pass\n",
" def __init__(self): # Hint: Add a constructor\n",
" pass\n",
"\n",
"# Example instantiation\n",
"my_vehicle = Vehicle()\n",
"my_vehicle = Vehicle() # Create an instance of Vehicle\n",
"print(type(my_vehicle)) # Expected output: <class '__main__.Vehicle'>"
]
},
Expand All @@ -87,7 +97,7 @@
},
{
"cell_type": "code",
"execution_count": 3,
"execution_count": null,
"metadata": {},
"outputs": [
{
Expand All @@ -100,8 +110,10 @@
],
"source": [
"# Your code here\n",
"class Bus(Vehicle):\n",
" pass\n",
"class Bus(Vehicle): # Hint: Create a Bus class that inherits from Vehicle\n",
" def __init__(self): # Hint: Add a constructor\n",
" super().__init__() # Call the constructor of the parent class\n",
" pass\n",
"\n",
"# Example instantiation\n",
"school_bus = Bus()\n",
Expand All @@ -118,26 +130,27 @@
},
{
"cell_type": "code",
"execution_count": 4,
"execution_count": null,
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"Base fare\n"
"Base fare with extra charge\n"
]
}
],
"source": [
"# Your code here\n",
"class Vehicle:\n",
" def fare(self):\n",
" def fare(self): # Hint: Create a method named fare\n",
" return \"Base fare\"\n",
"\n",
"class Bus(Vehicle):\n",
" # Hint: Override fare method to include extra charges\n",
" pass\n",
"\n",
" def fare(self):\n",
" return \"Base fare with extra charge\"\n",
"\n",
"school_bus = Bus()\n",
"print(school_bus.fare()) # Expected output: \"Base fare with extra charge\""
Expand All @@ -153,7 +166,7 @@
},
{
"cell_type": "code",
"execution_count": 5,
"execution_count": null,
"metadata": {},
"outputs": [
{
Expand All @@ -169,7 +182,7 @@
"class Vehicle:\n",
" color = \"White\" # Hint: Define color as a class attribute\n",
"\n",
" def __init__(self, name, max_speed, mileage):\n",
" def __init__(self, name, max_speed, mileage): # Hint: Add constructor with parameters\n",
" self.name = name\n",
" self.max_speed = max_speed\n",
" self.mileage = mileage\n",
Expand All @@ -188,14 +201,14 @@
},
{
"cell_type": "code",
"execution_count": 6,
"execution_count": 12,
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"Total Bus fare is: 5000\n"
"Total Bus fare is: 5500.0\n"
]
}
],
Expand All @@ -212,7 +225,10 @@
"\n",
"class Bus(Vehicle):\n",
" # Hint: Override fare method to include maintenance charge\n",
" pass\n",
" def fare(self):\n",
" base_fare = super().fare() # Get the base fare from parent class\n",
" maintenance_charge = base_fare * 0.1 # Calculate 10% maintenance charge\n",
" return base_fare + maintenance_charge\n",
"\n",
"school_bus = Bus(\"School Volvo\", 12, 50)\n",
"print(\"Total Bus fare is:\", school_bus.fare()) # Expected output: Total Bus fare is: (calculated amount)"
Expand All @@ -228,7 +244,7 @@
},
{
"cell_type": "code",
"execution_count": 7,
"execution_count": 14,
"metadata": {},
"outputs": [
{
Expand All @@ -255,7 +271,7 @@
},
{
"cell_type": "code",
"execution_count": 8,
"execution_count": 15,
"metadata": {},
"outputs": [
{
Expand Down Expand Up @@ -287,7 +303,7 @@
],
"metadata": {
"kernelspec": {
"display_name": ".venv",
"display_name": "base",
"language": "python",
"name": "python3"
},
Expand All @@ -301,7 +317,7 @@
"name": "python",
"nbconvert_exporter": "python",
"pygments_lexer": "ipython3",
"version": "3.8.0"
"version": "3.12.8"
}
},
"nbformat": 4,
Expand Down