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[MUSIC]

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Hi, everyone, this is James.

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In this C# practice session
you'll practice creating and

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instantiating classes using C#.

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It reinforces what you learned in
stage one of the C# objects course.

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If you find this practice session
too challenging to complete,

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you might need to review that course.

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See the teachers notes for a link.

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This practice session is
the first in a series of sessions

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where you'll build out a media
library console application.

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Step-by-step, you'll add
features to the program.

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Eventually, you'll be able
to use C# to add, list, and

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search for items like albums, books, and

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movies, whatever you want to have
catalogued in your media library.

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We'll start the development of our
program by creating a C# class for

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each type of item, or media type,
that can be added to your media library.

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For example, for

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my media library program I'm going to
support albums, books, and movies.

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You can use the same media types or
you can come up with your own types.

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Remember that objects have
both attributes and behaviors.

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In this session we'll think about
the attributes that we want to track for

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each of the media types,
and add a field for

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each attribute to the appropriate media
type class in future practice sessions.

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We'll add behaviors to our media types
by extending our media type classes with

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methods.

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I've attached a workspace to this video.

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Go ahead and open the workspace or
download the project files

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if you want to use an external editor or
IDE like VisualStudio.

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For your first challenge, you'll add
at least two classes to the program,

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one class for each type of item, or media
type, that can be added to your library.

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Define each class, using the 'class'
keyword within its own C# code file.

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For the namespace,
use "Treehouse.MediaLibrary".

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Once you've stubbed out
the media type classes

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then add at least two public
fields to each media type class.

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Remember, to add a field to a class
you use an access modifier,

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a data type, and a name.

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There are lot's of different fields that
you could define for each media type.

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For my album, book, and movie media types,
I'm going to add the following fields.

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For the album media type,
I'll add 'Title', and 'Artist' fields for

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the book media type, I'll add 'Title',
and 'Author' fields, and

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for the movie media type,
I'll add 'Title', and 'Director' fields.

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If you need some inspiration for

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fields that you could add, see the
teachers notes for some additional ideas.

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And that's it for the first challenge.

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If you aren't able to fully
complete this challenge,

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don't worry, I'll show you my
solution in the next video.

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Good luck, and
we'll see you in just a bit.