Heads up! To view this whole video, sign in with your Courses account or enroll in your free 7-day trial. Sign In Enroll
Well done!
You have completed C# Objects!
You have completed C# Objects!
Preview
What does object-oriented programming really mean?
This video doesn't have any notes.
Related Discussions
Have questions about this video? Start a discussion with the community and Treehouse staff.
Sign upRelated Discussions
Have questions about this video? Start a discussion with the community and Treehouse staff.
Sign up
Object oriented programming is
the predominant way that developers think
0:00
about software development.
0:03
But what does object oriented
programming really mean?
0:05
It means we can think of a software
program as a bunch of distinct objects
0:08
working together.
0:12
A software program can be
defined by how different objects
0:13
interact with each other.
0:17
These objects,
just like objects in the physical world,
0:18
have their own characteristics and
attributes.
0:21
They also have their own abilities and
behaviors.
0:24
For example, the object I have in my
hand right now is a PEZ dispenser.
0:26
It has attributes.
0:31
For example, it's green and orange.
0:32
And it has ten pieces of PEZ inside of it.
0:34
It also has behaviors.
0:36
It can dispense.
0:38
Thanks Yoda.
0:39
I am another type of object.
0:41
I'm a human and
I can interact with the Pez dispenser.
0:43
I can add Pez to it.
0:46
We can even break this simple object into
smaller objects with their own attributes
0:51
and behaviors.
0:55
For example,
Pez dispensers have a head and a body.
0:56
Although these are all
parts of the Pez dispenser,
1:00
we can think of each of
them as distinct parts.
1:02
If we were creating
a software application for
1:05
a Pez dispenser we might model each
of these objects separately in code.
1:08
Thinking about software this
way has lots of benefits.
1:13
For one, it makes thinking about building
a large software application a lot easier.
1:16
We just have to think about the different
types of objects that the software
1:21
is composed of.
1:24
Then you can craft each of
those objects one at a time.
1:25
These objects can then be composed
together to make something really cool.
1:29
Thinking about the program
in an object oriented way
1:33
naturally breaks it up into smaller parts.
1:36
And that makes the whole
program easier to code.
1:39
Another major benefit is software reuse.
1:43
The code that's written to
describe an object could be reused
1:46
in another software project that
needs the same type of object.
1:49
Code reuse is really important.
1:53
Now-a-days, in order to write a software
application, you actually only have to
1:54
write a tiny percentage of the total
code that makes up the entire program.
1:59
Reusing code is what makes it possible
to write so much software so quickly.
2:04
In fact, many software developers
believe so much in code reuse
2:09
that they share the code they write by
putting it on the web for anyone to use.
2:13
This is called open source code.
2:18
It's only because they follow the
principles of object oriented programming,
2:20
that others are able to integrate that
code into their own software projects
2:24
so easily.
2:27
You need to sign up for Treehouse in order to download course files.
Sign upYou need to sign up for Treehouse in order to set up Workspace
Sign up