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  Tutorial: Collections Exercise 1 - Unique Components

For the purposes of this exercise, the only data structures that need to be considered are: array, ArrayList, LinkedList, HashSet, TreeSet, HashMap, and TreeMap.

Tutorial Details:

Situation: A surprisingly common error in layouts is to add the same component twice. This happens when the layout code is edited, and old code is not deleted. Layout managers do not normally check for this, and the resulting layout behavior can be difficult to debug.

Question: What data structure would be appropriate for recording each component as it's added to the layout, and how could this data structure be used?


 

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Collections Exercise 1 - Unique Components

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