Question

Using Python3:

Create and test a class called water_bottle.

This class should have a constructor (init method) that accepts a size value (the number of ounces the water bottle will hold)

This class must also have the following methods: 1) drink (which reduces the amount of fluid by 1 ounce) 2) sip (which reduces the amount of fluid by 0.5 ounces) 3) gulp (which reduces the amount of fluid by 2 ounces) 4) fill (which fills the bottle to it's maximum capacity) 5) empty (which empties the bottle) 6) A __str__ method so that the water_bottle object can be printed (it should simple return the number of ounces remaining in the water bottle)

Answer 1

Program:

class water_bottle:
    #Constructor that accepts the amount of water the bottle can hold
    def __init__(self, size):
        #store the value in bottleCapacity and remainingWater
        self.bottleCapacity = size
        self.remainingWater = self.bottleCapacity

    #drink method that reduces the water in the bottle by 1 ounce
    def drink(self):
        self.remainingWater = self.remainingWater - 1

    #sip method that reduces the water in the bottle by 0.5 ounce
    def sip(self):
        self.remainingWater = self.remainingWater - 0.5

    #gulp method that reduces the water in the bottle by 2 ounce
    def gulp(self):
        self.remainingWater = self.remainingWater - 2

    #fill method that fill sets the water to the bottleCapacity
    def fill(self):
        self.remainingWater = self.bottleCapacity

    #empty method that empties the water in the bottle
    def empty(self):
        self.remainingWater = 0

    #method that displays the water remaining in the bottle
    def __str__(self):
        print("The number of ounces of water in the water bottle: " + str(self.remainingWater))

#create an object to the water_bottle class
myWaterBottle = water_bottle(15)
#call the __str__ method
myWaterBottle.__str__()
print("\nCalling the drink() method..")
#call the drink method
myWaterBottle.drink()
#call the __str__ method
myWaterBottle.__str__()
print("\nCalling the sip() method..")
#call the sip method
myWaterBottle.sip()
#call the __str__ method
myWaterBottle.__str__()
print("\nCalling the gulp method..")
#call the gulp method
myWaterBottle.gulp()
#call the __str__ method
myWaterBottle.__str__()
print("\nCalling the empty() method..")
#call the empty method
myWaterBottle.empty()
#call the __str__ method
myWaterBottle.__str__()
print("\nCalling the fill() method..")
#call the fill method
myWaterBottle.fill()
#call the __str__ method
myWaterBottle.__str__()

Output:

Code Screenshot: