What are the differences between lists and arrays?

What are the differences between lists and arrays?

Lists and arrays are both data structures used to store collections of items, but they have key differences. Lists are dynamic, meaning they can grow and shrink in size, while arrays have a fixed size once created. Additionally, lists can store items of different data types, whereas arrays typically store items of the same type.

Can you give me an example of when to use a list instead of an array?

Sure! If you need a collection of items that may change in size, like a shopping cart where items can be added or removed, a list would be ideal. On the other hand, if you need a fixed-size collection, like a set of coordinates, an array would be more appropriate.

Are there performance differences between using lists and arrays?

Yes, there are performance differences. Arrays generally provide faster access to elements because they are stored in contiguous memory locations. Lists, while more flexible, may have slower access times due to their dynamic nature and potential overhead.

What programming languages use lists and arrays?

Most programming languages support both lists and arrays. For example, Python has lists, while Java has both ArrayList (a dynamic list) and arrays. C++ has vectors (similar to lists) and arrays as well.