What is the difference between a collection and an array?

What is the difference between a collection and an array?

An array is a fixed-size data structure that holds elements of the same type, while a collection is more flexible and can hold different types.

Can you give me examples of collections?

Sure! Examples of collections include lists, sets, and maps. Each serves different purposes in data management.

When should I use a collection instead of an array?

Use a collection when you need dynamic sizing or to store different data types. Arrays are best for fixed-size, homogeneous data.

Are there performance differences between using collections and arrays?

Yes, arrays generally offer better performance for indexed access, while collections provide more flexibility but may have overhead.