Question

Create a new class called Point that represents a point in the Cartesian plane with two coordinates. Each instance of Point should have to coordinates called x and y. The constructor for Point should take two arguments x and y that represent the two coordinates of the newly created point. Your class Point should override the __str__(self) method so that it returns a string showing the x- and y-coordinates of the Point enclosed in parentheses and separated by a comma. Your class Point should override the __repr__(self) method so that it returns a string that contains Python code that would produce an instance of the same point. Your class Point should override the __eq__(self, other) method so that it returns True if and only if other is also a Point that has the same x- and y- coordinate as self.

Answer 1

"""
  Python program for class Point
"""

class Point:
    def __init__(self,x_init,y_init):
        self.x = x_init
        self.y = y_init

    def __str__(self):
        return "(%s,%s)"%(self.x, self.y)

    def __repr__(self):
        return "".join(["Point(", str(self.x), ",", str(self.y), ")"])

    def __eq__(self, other):
      if type(self) == type(other):
        if self.x == other.x and self.y == other.y:
          return True
        else:
          return False
  
p1 = Point(10, 3)
p2 = Point(1, 0)
p3 = Point(10, 3)

print('P1: ', p1)
print('P2: ', p2)
print('P3: ', p3)
print('')
print('P1: ', repr(p1))
print('P2: ', repr(p2))
print('P3: ', repr(p3))
print('')
print('P1 is P2: ', p1 == p2)
print('P1 is P3: ', p1 == p3)