What are some practical usage scenarios for the Java Collection Framework?
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What are some practical usage scenarios for the Java Collection Framework?
The Java Collection Framework is used for storing and manipulating groups of objects. Common scenarios include managing lists of items, handling sets of unique elements, and implementing maps for key-value pairs.
Can you give me an example of using a List in a real application?
Sure! A List can be used to manage a shopping cart in an e-commerce application, where you can add, remove, and view items.
What about using a Set? When would that be useful?
A Set is useful when you need to ensure that all elements are unique, such as storing user IDs in a registration system to prevent duplicates.
How does a Map work in the context of a database?
A Map can be used to represent a database record, where the keys are column names and the values are the corresponding data for each record.
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