Question

python code

DC Final Project Implement a class Car with the following properties. A car has a certain fuel efficiency (measured in miles/gallon) and a certain amount of fuel in the gas tank. The efficiency is specified in the constructor, and the initial fuel level is 0. The following two lines are written in a File called FuelEffic.txt (you have to read these from the txt file) Miles per gallon: 20 Tank Size (in gallons): 25 Therefore, based on these the Car should be able to drive 20 x 25 = 500 miles. Supply a method called Drive that simulates driving the car for a certain distance, reducing the fuel level in the gas tank, and methods getGasLevel, to return the current fuel level, and addGas, to tak up. Sample usage myHybrid Car(20) #20 miles per gallon myHybrid drive(100) #Drive 100 miles print(my Hybrid.getGasLevel() # Print fuel remaining myHybrid addGas(9) # Add 9 gallons Sample Scenario We know our car can drive 500 miles. If I use the myHybrid drive(100) function, it means Drive the Car 100 miles print(my Hybrid getGasLevel() should Print the fuel remaining. How do you get that?

Answer 1

Solution:

class Car: #class definition
fuel_efficiency=None
fuel_miles=0
tank_size=0
gallons=0
def __init__(self,miles_per_gallon):#constructor of class
self.fuel_efficiency=miles_per_gallon
  
  
def Drive(self,miles):#method that drives car and updates fuel and gallons
self.fuel_miles-=miles
self.gallons=self.fuel_miles/self.fuel_efficiency
return self.fuel_miles #return fuel_miles

def getGasLevel(self): #method that return fuel left
return self.gallons
  
def addGas(self,gas):#method that adds gas
s=self.tank_size
if self.gallons+gas>self.tank_size:#Check level of gas and add upto max level only
temp=self.gallons
self.gallons=self.tank_size
temp=self.gallons-temp
return str(temp)+" gallons of gas added"#return number of gallons added
else:
self.gallons+=gas
return str(gas)+" gallons of gas added"

def main():#main method definition
file=open("FuelEffic.txt","r")#open file in read mode
l=list(file.readlines())
for i in range(len(l)):
l[i]=l[i][:-1]#store data to list
miles_per_gallon=int(l[0].split(" ")[-1])#get the data from list
tank_size=int(l[1].split(" ")[-1])
Car.fuel_miles=miles_per_gallon*tank_size#set class variables
Car.tank_size=tank_size
Car.gallons=tank_size
o=Car(miles_per_gallon)
  
f=open("LogFuel.txt","w")#open output file in write mode
while(1):
print("1. See Current Fuel Level")#print options
print("2. Drive")
print("3. Add Gas")
print("4. Exit")
ch=int(input())#read choice
if ch==1:
print("The current fuel level is "+str(o.getGasLevel())+" gallons")#If ch is 1,the print current fuel
f.write("Input is 1\n")
f.write("The current fuel level is "+str(o.getGasLevel())+"\n")#write to file
elif ch==2:
value=int(input("How many miles to drive"))#read input from user
out=str(o.Drive(value))#call method to drive and update gallons fo fuel
print("You drove "+str(value)+" miles.You can drive another "+str(out)+" miles on this gas")
f.write("Input is 2\n")
f.write("You drove "+str(value)+" miles.You can drive another "+str(out)+" miles on this gas"+"\n")#write to file
elif ch==3:#If ch is 3,add gas
g=int(input("How much gas to add:"))
res=o.addGas(g)#call method to add gas and get the returned value
print(res)
f.write("Input is 3\n")#print output
f.write(res)#write to file
elif ch==4:#If ch is 4, break loop
break
main()#call main method

Screenshots:

The Screenshots are attached below for reference.

Please follow them for proper indentation,.

Make sure that the code file and input file are present in same folder.

Eo vou AWN class Car: fuel_efficiency=None fuel_miles=0 tank_size=0 gallons=0 def __init__(self,miles_per_gallon): self.fuel efficiency=miles_per_gallon def Drive(self,miles): self.fuel_miles-=miles self.gallons self.fuel miles/self. fuel_efficiency return self.fuel_miles 12 def getGasLevel(self): 16 return self.gallons 17 18 def addGas(self,gas): s=self.tank_size if self.gallons+gas self.tank_size: temp=self.gallons self.gallons=self.tank_size temp=self.gallons-temp return str(temp)+" gallons of gas added" else: self.gallons+=gas return str(gas)+" gallons of gas added", 28 29def main(): file=open("FuelEffic.txt","r") 1=list(file.readlines()) 31

def main(): file=open("FuelEffic.txt","r") 1=list(file.readlines()) for i in range(len(1)): 1[i]=1[i][:-1] miles_per_gallon=int(1[@].split(" ")[-1]), tank_size=int(1[1].split(" ")[-1]) Car.fuel_miles=miles_per_gallon tank_size Car.tank_size=tank_size Car.gallons=tank_size o=Car(miles_per_gallon) f=open("LogFuel.txt", "W") while(1): print("1. See Current Fuel Level") print("2. Drive") print("3. Add Gas") print("4. Exit") ch=int(input()) if ch==1: print("The current fuel level is "+str(o.getGasLevel()+" gallons"), f.write("Input is 1\n") f.write("The current fuel level is "+str(o.getGasLevel()+"\n"), elif ch==2: value=int(input ("How many miles to drive")>> out=str(o.Drive(value)) print("You drove "+str(value)+" miles. You can drive another "+str(out)+" miles on this gas") f.write("Input is 2\n") f.write("You drove "+str(value)+" miles. You can drive another "+str(out)+" miles on this gas"+"\n"), elif ch==3: g=int(input("How much gas to add :") res=o.addGas(8) print(res) f.write("Input is 3\n") f.write(res) elif ch=-4: Activate u break Go to Setting main()

1. See Current Fuel Level 2. Drive 3. Add Gas 4. Exit The current fuel level is 25 gallons 1. See Current Fuel Level 2. Drive 3. Add Gas 4. Exit How many miles to drive100 You drove 100 miles. You can drive another 400 miles on this gas 1. See Current Fuel Level 2. Drive 3. Add Gas 4. Exit How much gas to add: 9 5.0 gallons of gas added 1. See Current Fuel Level 2. Drive 3. Add Gas 4. Exit >>>|

FuelEffic - Notepad File Edit Format View Help Miles per gallon: 20 Tank size(in gallons): 25

The output file is as follows:

LogFuel - Notepad File Edit Format View Help Input is 1 The current fuel level is 25 Input is 2 You drove 100 miles. You can drive another 400 miles on this gas Input is 3 5.0 gallons of gas added