Question

NEEDS TO BE IN PYTHON:

(The Point class)

Design a class named Point to represent a point with x- and y-coordinates. The class contains:

- Two private data fields x and y that represent the coordinates with get methods.
- A constructor that constructs a point with specified coordinates, with default point (0, 0).
- A method named distance that returns the distance from this point to another point of the Point type.
- A method named isNearBy(p1) that returns true if point p1 is close to this point. Two points are close if their distance is less than 5.
- Implement the __str__ method to return a string in the form (x, y).

Draw the UML diagram for the class, and then implement the class. Write a test program that prompts the user to enter two points, displays the distance between them, and indicates whether they are near each other.

Sample Run 1

Enter the x-coordinate of point1: 2.1

Enter the y-coordinate of point1: 2.3

Enter the x-coordinate of point2: 19.1

Enter the y-coordinate of point2: 19.2

The distance between the two points is 23.97

The two points are not near each other

Sample Run 2

Enter the x-coordinate of point1: 2.1

Enter the y-coordinate of point1: 2.3

Enter the x-coordinate of point2: 2.3

Enter the y-coordinate of point2: 4.2

The distance between the two points is 1.91

The two points are near each other

Answer 1

class Point:
    def __init__(self, x=0.0, y=0.0):
        self.__x = x
        self.__y = y

    def get_x(self):
        return self.__x

    def get_y(self):
        return self.__y

    def move(self, dx, dy):
        self.__x += dx
        self.__y += dy
        return dx, dy

    def move_to(self, newx, newy):
        self.__x = newx
        self.__y = newy
        return newx, newy

    def __str__(self):
        return '(' + str(self.__x) + ', ' + str(self.__y) + ')'

    def __repr__(self):
        return 'Point' + '({0}, {1})'.format(self.__x, self.__y)

    def distance(self, p):
        return ((self.__x - p.__x) ** 2 + (self.__y - p.__y) ** 2) ** 0.5

    def isNearby(self, p):
        return self.distance(p) < 5


x1 = float(input("Enter the x-coordinate of point1: "))
y1 = float(input("Enter the y-coordinate of point1: "))
x2 = float(input("Enter the x-coordinate of point2: "))
y2 = float(input("Enter the y-coordinate of point2: "))
p1 = Point(x1, y1)
p2 = Point(x2, y2)
print("The distance between the two points is {:.2f}".format(p1.distance(p2)))
if p1.isNearby(p2):
    print("The two points are near each other")
else:
    print("The two points are not near each other")