Answer to Question #268490 in Python for Isabel Cortez

Question

ACT2: Object Basics (copy)

INSTRUCTIONS

Create a class called Numbers, which has a single class attribute called MULTIPLIER, and a constructor which

takes the parameters x and y (these should all be numbers).

(a) Write a method called add which returns the sum of the attributes x and y.

(b) Write a class method called multiply, which takes a single number parameter a and returns the product

of a and MULTIPLIER.

(c) Write a static method called subtract, which takes two number parameters, b and c, and returns b - c.

(d) Write a method called value which returns a tuple containing the values of x and y. Make this method

into a property, and write a setter and a deleter for manipulating the values of x and y.

Answer 1

class Numbers:
    # create a class attribute called MULTIPLIER
    MULTIPLIER=5
    def __init__(self, x, y):
        self.x = x
        self.y = y


    def add(self):
        return self.x + self.y
    # return the attribute MULTIPLIER * by a.
    def multiply(self, a):
        return self.MULTIPLIER * a
    
    @staticmethod
    def subtract(b, c):
        return b-c


    @property
    def value(self):
        return self.x, self.y


    # Create a setter and a deleter for value.
    
    def setX(self, value):
        self.x = value
    def deleteX(self):
        del self.x
    def setY(self, value):
        self.y = value
    def deleteY(self):
        del self.y


# test the class.
num = Numbers(5,6)
print(num.add())
print(num.multiply(2))
print(num.subtract(2, 4))
print(num.value)
num.setX(2)
num.setY(5)
print(num.value)
num.deleteX()
num.deleteY()