Case Study 1: 1. Class EventHandler

question 8

Multiple Choice

Case Study 1:
1. class EventHandler:
2. def __init__(self) :
3. self.__queue = []
4. self.__eventKeeper = {}
5.
6. def addEvent(self, eventName) :
7. self.__queue.append(eventName)
8.
9. def registerCallback(self, event, func) :
10. self.__eventKeeper[event] = func
11.
12. def run(self) :
13. while(True) :
14. if len(self.__queue) > 0:
15. nextEvent = self.__queue.pop(0)
16. self.__eventKeeper[nextEvent]()
17. else:
18. print('queue is empty')
-Refer to the session in the accompanying Case Study 1. What kind of loop is shown on lines 13-18?

• A) Definite
• B) Abstract
• C) Multithreaded
• D) Infinite

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Definitions:

Nonhuman Relatives

Species other than Homo sapiens that are considered part of humans' extended family tree, sharing a common ancestor.

Miocene

An epoch of the Neogene period, extending from about 23 to 5.3 million years ago, during which time the Earth experienced significant climatic changes and evolutionary developments among mammals.

Reduced Rainfall

A decrease in the amount of precipitation received over a specific period, often linked to climate change, weather patterns, or geographical variations.

Homo Naledi

A species of hominin discovered in South Africa known for its unique mix of primitive and modern traits, adding complexity to human evolution.