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Okay, so remember that quiz
question from a previous

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course where I asked about a dunk tank?

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Well some of you didn't know
what that was and I apologize.

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It's a carnival game where someone
sits over a pool of water on a shelf.

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The carnival-goer buys the balls and
they throw it at the target.

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If they hit the target,
the person falls into the water.

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Now I'm sure you're imagining
putting me on that dunk tank and

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throwing the ball and
having me dunked into freezing cold water,

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because I didn't show
you these tools earlier.

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But, before you get too upset at me, let's
take a second to appreciate that you were

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able to code in Java without these tools.

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You didn't need these training
wheels on your editor.

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Let's be honest, most of the warnings
wouldn't have made any sense to you at

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all until you got started.

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Now, that being said though,
you can totally dunk me.

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I'm sure I deserve it.

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I did make you type a lot more than you
would have to in a real world situation.

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So let's just say at this point, I
definitely owe you three dunk tank balls.

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Alright, so let's import that very
long project that you painstakingly

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completed without code assistance in
the previous course, the karaoke machine.

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I want to show you how to bring outside
code into this new world order.

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Okay, so I've included a zip file of

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the source code from the final
project in the teacher's notes.

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If you want to get your own version, just
go to your workspace and choose File >

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Download Workspace, and that will send
down a ZIP file that you can then open up.

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So what I've done is I've downloaded
that ZIP file, I've unzipped it, and

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now I have that source code in a folder.

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Here it is.

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Now, since we're just hand
coding like this and there isn't

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any additional project information,
let's first just create a new project.

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Okay.
So, the way that you do that is,

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in IntelliJ you choose
File > New > Project.

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Okay.
And this is very much like the Create New

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Project that we saw before, and we wanna
just leave it, the Project SDK the same.

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We don't wanna do a template, right?

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Because we've already got our code that
we need, so we're just gonna go ahead and

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leave that unchecked.

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And we're gonna call this Karaoke.

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Okay.
So, it's possible to have multiple windows

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open with different editors and
that's what this prompt is asking.

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It's asking if we want to replace this
window or if we wanna make a new one and

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have them side by side.

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For our case,
we're just gonna use this one.

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So what it's gonna do is it's gonna get
rid of the systemizer window that we have

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and we're gonna put up the karaoke window.

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Cool.

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So, this is an empty project.

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By default, the project is set
up in a directory based format.

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When creating a project,
a default module is added for us, and

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that's what this is here, this karaoke.

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Now a module in IntellaJ is defined
as a discreet unit of functionality.

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Modules contain everything that is
required for there specific task, and

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they come with an idea folder.

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This .Ideafolder.

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It contains files about how
you like your editor setup.

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They also have an IML file here, and

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it keeps project specific
settings in one place.

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The .iml suffix stands for idea module,
and the fact that all the settings are in

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a file like this, it makes sure
that teams can have the same setup.

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So I could share this with somebody
else and this setup would be the same.

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There's a little icon on this folder here,
on the karaoke folder here of this module.

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And that's saying that its the content
root folder.This source folder here

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is short for source code.

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And its blue you'll notice, and that blue
represents that its the source root.

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All other folders are sort of orange and
yellow like that.

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If you're working with other projects from
idea users or even in clips projects,

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you can actually import
things really easy.

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So, you could get these INL files
from other people like I was saying.

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But what I wanna show you here
first is that when you don't

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have an existing idea project to import,
like we don't currently, right?

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Our karaoke project is hand-coded.

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You can imagine this as kind of converting
or upgrading to an idea project.

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These idea projects respond really
well to dragging and dropping.

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So, I'm gonna go ahead and I am gonna
grab the karaoke folder and our packages.

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And I'm gonna drag those and

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I'm gonna just click right inside
the source file here, okay?

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And it's gonna go ahead and
say move the specified references and

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that's fine, right?

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Cuz that was just a zip folder that I had.

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So I'm just gonna go ahead and move them.

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And it says open the moved
files in the editor.

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Sure, why not?

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Okay, and
it says they don't belong to the project.

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Okay I understand that.

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I'm moving them.

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And finally, I'm gonna bring this
songs.text to the content root.

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Right?
So I'm gonna put it here.

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When we end up running this later and

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again it asks for
the same things here again.

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Before we were running right from
the start of the directory and

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this is relative.

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We'll explore this a little bit in
the future when we go to run this.

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But I just wanted to point out that we
don't want to drop it into source code

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folder, we're gonna put it in the content
root, and I'll show you why here in a bit.

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Okay, so, I really wanna show you
something that's gonna make you happy.

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So, you can set up these
different formatting rules.

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So, here's our song.java file.

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Now let's say that when we were coding,

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we weren't the cleanest about things
about things that we kind of did.

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We move this over, got a warning up
here about the file is indented with

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two spaces instead of four, and that's
kind of the default here, in this world.

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And this is nice, right?

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Cuz if you have different team
members working on different things.

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So, I'm just gonna screw up the spacing
a little bit because, you know,

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we were rushing to get through this
before and the spacing wasn't quite done.

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So, let's go ahead and
come up here to code.

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And if you look down here in this code,
there's this Reformat code,

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and that is Option+Command+L on a Mac.

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So I'm gonna go ahead and
I'm gonna click that.

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Watch what it does.

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Boom.
Everything got set the proper way and

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now it's also at four spaces.

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But look,
everything's back to where it was.

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So, I am gonna do that again and
I'm gonna do that again and

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we'll just bring this guy.

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It's pretty good at not
letting me screw those up.

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So, I'm going to Option+Command+L and
everything is back to normal.

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So it's Ctrl+Alt+L in Windows.

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That's great.

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But what if I knew that I
remembered doing that one time, but

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I can't remember where it's at?

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So there's a great feature in
IntelliJ whic will be your friend,

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especially when you're learning this.

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If you press Cmd+Shift+A, or
Shift+Ctrl+A on Windows, and you choose.

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I know it wasn't Reformat.

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There it is, Reformat Code.

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And then, boom.

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And it will do it.

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And I have to break anything,
let's break something real quick.

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So, Control+Shift+A, Reformat Code,
boom, that fixed it.

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Great, right?

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So, we just did this file, but let's go
ahead and open up another file over here.

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Let's open up Songbook.

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So we can go ahead and
reformat the entire package.

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So, if I come up here to the source
folder and I say Reformat Code,

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we're gonna include subdirectories and
we're gonna leave Optimize Imports, right?

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So that's gonna remove any imports that
we didn't use, cuz that can happen, and

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we're also gonna choose Rearrange Entry.

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So, I'm gonna click Run.

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So, now all the files, and

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we can open them up by clicking
on them over here, are done.

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You also notice there's
some of these pluses.

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This is here to kind of help you read your
code quicker, but I'm gonna open this up.

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One more thing I wanted to show you really
quick is, on the imports over here,

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remember we put the dot star, and
I told you it was a little bit lazy?

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Well let's go ahead and let's put our
cursor here and let's see what happens.

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Look, there's a little thing
that popped up over here.

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This light bulb is called
an intention action.

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What happens with these intention
actions are they're suggestions

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of what could happen.

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So, let's go ahead and open this up and it
says, replace with single class imports.

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That's great,
that's exactly what we wanted.

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We just didn't want to have to type
all those out, so let's do that.

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And what it did was it took an
alphabetized order of everything that we

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used in here that was under that star.

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Pretty powerful tool, isn't it?

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Okay, we learned a ton there.

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And as I'm sure,

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you saw when you opened that menu up,
there are a lot more actions in there.

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We definitely aren't gonna hit all of
those, but in a bit, I'll show you how

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awesome the documentation is for
the IntelliJ Idea Project.

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You can dive in at your own pace.

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So let's go ahead and
take a quick break and I'll swing back and

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show you how to run our application.