Practice Pecs Rule (15.10.4) - Collections and Generics

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10 questions

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6 sample questions

Question 1.
Define the PECS rule in your own words.
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Think about the roles of producing and consuming data.
Question 2.
What wildcard would you use if you are reading from a list?
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Consider how you're accessing data in the collection.
3Question 3.
What does the 'P' in PECS stand for?
- Producer
- Parameter
- Props
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Think about who generates data in your applications.
4Question 4.
Using super in a generic means you are likely a __.
- True
- False
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Remember the roles defined in PECS.
Question 5.
Define a class that utilizes the PECS rule effectively, where you have a method to process various banking transactions.
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Think about how transactions might vary and how they relate.
Question 6.
Describe a situation where you might mistakenly apply the PECS rule and explain the result.
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Reflect on the difference between data collection directions.

6 more questions in this section. Enroll free to practise them all.