Design and implement a class Country that stores the name of the country, its population, its area, and the population density (
i.e., people per square kilometer (or mile). In other words, there are four major methods in this class (i.e., get country name, get area information, get population information, and get population density information). Then, write a test file that reads data.txt and prints the following three tasks by leveraging methods from the Country() class. The country with the largest area. The country with the largest population. The country with the largest population density You should turn in TWO Python files in this question. One is a Country class file and the other is the test program that leverages the methods from the Country()class and print the above three requests. You could leverage set() to store country information and do the operations.
1 answer:
Answer:
See explaination
Explanation:
Make use of Python programming language.
File: Country.py
class Country:
def __init__(self, n="", p=0, a=0):
""" Constructor """
self.name = n
self.population = p
self.area = a
self.pDensity = self.population / self.area
def getCountryName(self):
""" Getter method """
return self.name
def getPopulation(self):
""" Getter Method """
return self.population
def getArea(self):
""" Getter Method """
return self.area
def getPDensity(self):
""" Getter Method """
return self.pDensity
File: CountryInfo.py
from Country import *
# Opening file for reading
with open("d:\\Python\\data.txt", "r") as fp:
# List that hold countries
countryInfo = []
# Processing file line by line
for line in fp:
# Stripping spaces and new lines
line = line.strip()
# Splitting and creating object
cols = line.split('\t')
cols[1] = cols[1].replace(',', '')
cols[2] = cols[2].replace(',', '')
c = Country(cols[0], int(cols[1]), float(cols[2]))
countryInfo.append(c)
# Processing each countryInfo
largestPop = 0
largestArea = 0
largestPDensity = 0
# Iterating over list
for i in range(len(countryInfo)):
# Checking population
if countryInfo[i].getPopulation() > countryInfo[largestPop].getPopulation():
largestPop = i;
# Checking area
if countryInfo[i].getArea() > countryInfo[largestPop].getArea():
largestArea = i;
# Checking population density
if countryInfo[i].getPDensity() > countryInfo[largestPop].getPDensity():
largestPDensity = i;
print("\nLargest population: " + countryInfo[largestPop].getCountryName())
print("\nLargest area: " + countryInfo[largestArea].getCountryName())
print("\nLargest population density: " + countryInfo[largestPDensity].getCountryName() + "\n")
Please go to attachment for sample program run
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