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4 cards from this section. Quick, good the night before a test.
What is the main purpose of the Collection interface?
Think of the Collection interface as a foundation.
What type of elements does a Set store?
Focus on the definition of a Set.
What does the Collection interface represent?
Think of what Collection means in programming.
True or False: A Set allows duplicate elements.
Recall the distinguishing feature of a Set.
Create a Java program that uses a List to store the names of students enrolling in a course, and demonstrate the ability to manage duplicates.
Use an if-condition to check for existing names before adding a new one.
Implement a scenario using a Map to store a phone book, where user names are keys and phone numbers are values. Create methods to add, retrieve, and delete entries.
Remember to ensure that each user name is unique.
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