University of Central Florida (UCF) COP3330 Object Oriented Programming Final Practice Exam

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What distinguishes collections from arrays in Java?

Collections are not resizable

Collections can dynamically grow and shrink in size

The distinction that makes collections unique compared to arrays in Java lies in their ability to dynamically grow and shrink in size. While arrays have a fixed size once they are initialized — meaning you cannot change the number of elements they contain after they are created — collections such as ArrayList, LinkedList, and others in the Java Collections Framework can adjust their size. This dynamic property of collections allows developers to add or remove elements without worrying about exceeding an initial limit or dealing with array resizing manually.

This flexibility makes collections particularly powerful for data handling in applications where the number of elements can vary significantly, as opposed to arrays, which are more suited for scenarios where the size is known in advance and does not change. The dynamic nature of collections allows for more fluid and efficient data manipulation, catering to a wide range of programming needs.

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Collections can only hold primitive data types

Collections provide fewer methods than arrays

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