What are some common usage scenarios for collections in C#?

What are some common usage scenarios for collections in C#?

Collections in C# are used to store groups of related objects. Common scenarios include managing lists of items, handling data sets, and implementing data structures like stacks and queues.

Can you give me an example of using a List in C#?

Sure! A List in C# can be used to store a collection of integers. For example: List<int> numbers = new List<int> {1, 2, 3, 4}; You can then add, remove, or sort these numbers easily.

What about dictionaries? When should I use them?

Dictionaries are great for key-value pairs. Use them when you need to quickly look up values based on a unique key, like storing user information where the key is the user ID.

Are there any performance considerations when using collections?

Yes, different collections have different performance characteristics. For example, Lists are good for indexed access, while LinkedLists are better for frequent insertions and deletions.