15.10.4. PECS Rule

Try these first

1. 1.

   Define the PECS rule in your own words.

   Hint

   Think about the roles of producing and consuming data.

2. 2.

   What wildcard would you use if you are reading from a list?

   Hint

   Consider how you're accessing data in the collection.

3. 3.

   What does the 'P' in PECS stand for?

   • Producer
   • Parameter
   • Props

   Hint

   Think about who generates data in your applications.

4. 4.

   Using super in a generic means you are likely a __.

   • True
   • False

   Hint

   Remember the roles defined in PECS.

5. 5.

   Define a class that utilizes the PECS rule effectively, where you have a method to process various banking transactions.

   Hint

   Think about how transactions might vary and how they relate.

6. 6.

   Describe a situation where you might mistakenly apply the PECS rule and explain the result.

   Hint

   Reflect on the difference between data collection directions.