Question

Using Phyton. Design a class Country with the use of constructor, mutator, accessor methods and implement that class to store the name of the countries, their population, their areas and regions they are located. Then write a program that reads 5 instances (US, China, Russia, Germany, India) of country class and display the name of the country, the population, the area and the region they are located.

Answer 1

class Country:

    # Constructor to initialize instance members
    def __init__(self, name, population, area, region):
        self.__name = name
        self.__population = population
        self.__area = area
        self.__region = region

    # Setter and getter methods for instance members
    def setName(self, name):
        self.__name = name

    def getName(self):
        return self.__name

    def setPopulation(self, population):
        self.__population = population

    def getPopulation(self):
        return self.__population

    def setArea(self, area):
        self.__area = area

    def getArea(self):
        return self.__area

    def setRegion(self, region):
        self.__region = region

    def getRegion(self):
        return self.__region

    # This method returns country details in string format
    def __str__(self):
        return "Name: %s\nPopulation: %.2f crores\nArea: %.2f km^2\nRegion: %s\n" % (
            self.__name, self.__population, self.__area, self.__region)


if __name__ == '__main__':
    # Create 5 object and print them
    US = Country('US', 32.72, 9833520, 'North America')
    China = Country('China', 138.64, 9596960, 'Asia')
    Russia = Country('Russia', 14.45, 17125191, 'Europe')
    Germany = Country('Germany', 8.28, 357021, 'Europe')
    India = Country('India', 133.92, 3287263, 'Asia')

    print(US)
    print(China)
    print(Russia)
    print(Germany)
    print(India)

SCREENSHOT

OUTPUT