List in C#

A big limitation of static arrays in C# is the fact that once the array is created, it has a fixed size.

The List overcomes this limitation by having variable size and allowing for elements to be added or removed.

Creation:

We create a List by using the keywords new and List, then writing the type of the elements inside <> followed by parentheses:

new List<string>();

This code creates an empty List where each item is a string.

Declaring a variable:

To use the list later, store it in a variable whose type is List with the type of the elements, like this:

List<string> sandwich = new List<string>();

Initialization:

You can also initialize a List at creation by writing the entries in curly braces after the constructor, with a comma between each entry, like this:

List<string> sandwich = new List<string> {
    "peanut butter", "jelly", "bread"
};

We created a List named sandwich which consists of 3 items: "peanut butter", "jelly" and "bread".

Assignment
Follow the Coding Tutorial and let's create some Lists!

Hint
Look at the examples above if you get stuck.