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There's an old proverb that goes give
a person a keyboard shortcut and

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they'll be more productive.

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Teach a person how to learn shortcuts
on their own and change the world.

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It was something like that,
maybe a little more profound.

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Now I mentioned earlier that the
documentation in IntelliJ is pretty great.

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Let's take a quick tour through it.

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One thing that I wanted to point
out is that IntelliJ IDEA goes to

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a lot of effort to make sure you
don't need to use your mouse.

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It uses a mnemonic approach.

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So any time you see something underlined,

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it means that you can push
that key to make it focus.

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It also means that editing
text has many handy shortcuts,

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and you should know about them.

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So let's go ahead and take a look.

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So if you come in here and
we go under Help, we choose Help Topics.

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It's gonna open up a pretty
awesome web page that they have,

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I'm gonna bring that over here.

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At full screen here.

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Now I happen to know where the editing
is because I've been in this quite a bit

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preparing for this course.

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And I wanna show you if we
go under IntelliJ Editor

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> Quick Start > IntelliJ Editor.

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And then I wanna show you basic
editing procedures, okay.

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So they've done a really good job.

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Up here there's this key
map you can choose and

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you can change it to
whatever you want to do.

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So let's go ahead and
keep it where it's at.

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So here it says to select the entire
text in the current editor tab

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do one of the following.

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Edit select all or Cmd+A, so that's
kind of common in all applications but

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if you're here and you press Cmd+A,
bam, everything's all selected.

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Selecting text with the navigation keys.

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To select text from the current care
position, press Shift+Alt+Left and

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Shift+Alt+Right.

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Also you can select one character
at a time by pressing Shift but

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if you also put Alt on there you
can jump a word at a time, right?

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That's pretty cool, might have seen that.

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That kinda works on all word
processing places up and

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down resting your hold down shift and
it's kind of highlighting.

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And you can cut copy that way.

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You can do Page Up and Page Down a Mac.

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That's with the Function key,
if you don't have that on your keyboard.

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So if I do Shift+Function+Up.

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Home and End on a Mac are with
the Shift+Function+Right, right?

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So if I was in the middle of this, and if
I don't press down Shift I just hold Alt I

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can jump my cursor around that way too.

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So, I'm gonna go to the front of the line,
so

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I'm gonna do Shift+Function+Left, and
I'm gonna go to the end and do Right.

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So that's Home and End.

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You might see there in
their dock it says that.

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This is a super cool feature here,
this extending selection.

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To select that, we're not going
to hold down the Shift key,

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we're just going to hold down the Alt key,
I'm gonna press Up and

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it knows that it extended
to the word that I was on.

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But I can go more and
I can get the whole index as well.

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And then it's gonna go up again, and
then it's gonna get all the arguments and

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then it's gonna get the entire line.

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Then it's going to get the entire
line including that and

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then up again, and up again.

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And then now we've got
the whole while block.

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Now we got all the while.

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So it knows about the code, right?

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And then if I'm going to jump
it will get the whole class.

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Pretty cool right?

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And down works the same way so
you go down with that.

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So, there's some multi-selection,
there's some more steps are here.

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So, don't get overwhelmed.

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I want to pop over really
quick to commenting, because

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this is something that I find very helpful
when I'm trying to walk through and

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really learn the language.

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You might want to learn how to comment and
un-comment lines.

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So, basically all you need
to do is get you cursor.

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Here, like let's say we don't want this
reader anymore and I'm gonna comment it,

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so I'm gonna press CMD+Slash.

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See, It drops a comment at the front and
I can undo it as well.

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I can do that with multiple lines, so

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I can get rid of this whole thing
inside the try block here.

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But, if you wanted to do
it properly with Java,

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you can actually hold
Cmd+Alt+Forward Slash, we'll push that.

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So see it's got the proper
star slash star there.

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And you can undo with Cmd+Z.

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All right, and here, this is a great one.

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Adding, deleting and moving lines.

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This is something that we do all the time,
right?

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We wanna move lines around,
we wanna change them so,

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one of my favorite things to do, let's say
that we wanted to duplicate this here.

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We wanted to write something else so

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if we do Cmd+D,
it will automatically duplicate the line.

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So, I could've obviously
selected the line, copied,

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pasted but
just duplicating it is pretty handy.

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And delete an entire
line with Cmd+Backspace.

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We can also move lines around.

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This is pretty handy so I if do
Cmd+Shift+Up, see I can move this line and

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see how it's jumping in the right place.

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It's jumping in a different
part of the code there.

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Pretty handy.

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So I also wanted to show you that,
let's accidentally delete this line and

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I can of course, undo it and
I can redo what I did.

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So Shift+Cmd+Z or Shift+Ctrl+Z, right?

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One thing also that I wanted to show,
let's say that I heard about another

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editor and I got kinda jealous cuz I know
Sublime Text has this multiple cursors

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thing and I was wondering if
this editor supported it.

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So I could go over to the search,
I could come up here and

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I could just start typing.

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Well oh, look, multi-cursor,
it does have it.

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Cool.
You should check this out,

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this is really cool.

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We'll go over this here in a little bit.

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And if you scroll down,

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you can see that they're all
kind of locked together, right?

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So here's the selecting text that we had,
that we were looking at before.

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So you kinda get in this one of
those documentation holes here but

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it's a lot of fun learning what
you can do with this editor.

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Here's the Help.

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Are you feeling more productive already?

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Well, check this out.

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Over here in Help,
there's a thing called Productivity Guide.

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This is great, it shows they're
grouped by different things and

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they show how many times
that you've used them.

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And I find this as well,
that I should use this.

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And if you open it up, it'll show you
great hints about what's going on, okay?

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So I think that

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you should come back here whenever you
feel the itch to explore things more.

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Don't get overwhelmed, but just keep on
coming back and learning more every time,

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cause the more you learn this,
the more productive you'll be.

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Oh, and finally, I wanna show you
the motherload of keyboard shortcuts.

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So you go Help > Default Keymap Reference.

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It's gonna open up a PDF.

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Wow, right?

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That'd make a great tattoo.

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It makes sense that
the help is also large.

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IDEs do a lot of things.

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I've added a bunch of directions
on the teacher's notes.

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Remember to use that productivity
guide every once and

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a while to pick up new tricks.

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After you get the hang of it,

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show off your tricks to your friends,
it's more impressive than juggling.

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If you find something that you love,
come and share it on the forum.

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I plan to make several workshops
on the greatest IDE hits

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showing off the favorite tricks and
tips from different editors.

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Also Android Studio uses IntelliJ, so

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all the stuff you earn here,
will work there too.

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We have a amazing set of Android
questions here on Treehouse and

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with your new super powers,
you're already productive.

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Now that you're getting
comfortable with the editor and

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navigating around,
let's practice it some more and

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introduce some more advanced tooling,
right after you wrap up this exercise.