Case Study 1: 1. Class EventHandler

question 29

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. How would you call the function associated with the key 'mouse'?

• A) self.__queue['mouse']
• B) self.__eventKeeper['mouse']()
• C) self.__eventKeeper('mouse')
• D) self.__queue('mouse')

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Definitions:

Values

Core beliefs or standards that guide and motivate attitudes and actions, reflecting what is important to an individual or organization.

Equity

The concept of fairness or justice in the manner of treatment or distribution of resources among individuals or groups.

Attitude

An attitude is a psychological construct representing an individual's degree of like or dislike for an item, person, thing, or event.

Belief

The acceptance that something exists or is true, particularly without proof.