Pyhton question

Design a class named StopWatch. The class contains:

The private data fields startTime and endTime with get methods. A constructor that initializes startTime with the current time. A method named start() that resets the startTime to the current time. A method named stop() that sets the endTime to the current time. A method named getElapsedTime() that returns the elapsed time for the stop watch in milliseconds.

Draw the UML diagram for the class, and then implement the class. Write a test program that measures the execution time of adding numbers from 1 to 1,000,000

My code:

Need help adding this to my code " print the start time and end time for the calculation. You were asked to define two variables, you missed one. There is only startTime in constructor, it should also include endTime."

import time import random

class StopWatch: def __init__(self): self.__startTime = time.time()

def getStartTime(self): return self.__startTime

def getEndTime(self): return self.__endTime def start(self): self.__startTime = time.time() def stop(self): self.__endTime = time.time() def getElapsedTime(self): return int(1000 * (self.__endTime - self.__startTime))

def main(): size = 1000000

stopWatch = StopWatch() sum = 0 for i in range(1, size + 1): sum += i stopWatch.stop() print("The loop time is", stopWatch.getElapsedTime(), "milliseconds")

main()