using python 3: implement the scale method

A)

class Point:

def __init__(self, initX, initY): """ Create a new point at the given coordinates """ self.__x = initX self.__y = initY

def getX(self): """ Get its x coordinate """ return self.__x

def getY(self): """ Get its y coordinate """ return self.__y

def __str__(self): """ Return a string representation of the point """ return "({}, {})".format(self.__x, self.__y)

def scale(self, val): """ Return a new point that is self multiplied by val """

if __name__ == "__main__": import test import unittest class TestPoint(unittest.TestCase): def setUp(self): pass def test_scale_1(self): p = Point(6,2) self.assertEqual(p.scale(Point(12, 4)), 2)

def test_scale_2(self): q = Point(1,1) self.assertEqual(q.scale(Point(11,11)),11) if __name__ == "__main__": unittest.main()

B)

We can represent a rectangle by knowing three things: the location of its lower left corner (its starting point), its width, and its height. Write a class definition and constructor method for a Rectangle class (after the definition for the Point class) using this idea. To instantiate a Rectangle object at location (4,5) with width 6 and height 5, we would do the following:

r = Rectangle(Point(4, 5), 6, 5) 

class Point: def __init__(self, initX, initY): """ Create a new point at the given coordinates """ self.__x = initX self.__y = initY

def __str__(self): """ Return a string representation of the point """ return "({}, {})".format(self.__x, self.__y)

# your code goes here