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(bright music)

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(zooming)

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(keyboard typing)

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Mitropoulos: Now that CodeLite is installed,

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we need to run it, configure it,

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and then run a little test program

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to make sure our configuration is correct.

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So the first thing we wanna do is,

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we wanna find CodeLite

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and you can just type "Code" in the search

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and you'll find CodeLite, and double click.

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Now the first time it runs,

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you may get a small window like this

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and it's probably a good idea

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just to make it a little larger.

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Okay, now, sometimes when you run it the first time,

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you'll get a setup wizard that runs, sometimes you don't.

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We'd like to run the setup wizard, so if it doesn't show up,

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you can go to help, run the setup wizard, and select that.

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And you get a window that pops up.

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So I'll select next.

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Now here, CodeLite supports PHP and Node

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and a few other technologies.

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We really don't want all that clutter on our IDE.

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We wanna strictly concentrate on C plus plus.

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So I would suggest that we clear all the plugins

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and then turn on only the C plus plus plugins.

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So you can see now that not everything is checked,

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only the C plus plus plugins are checked

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and we'll select next.

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Now we'll scan our computer for any installed compilers.

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So we'll scan the computer and it's found GCC across GCC.

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I'm gonna select GCC.

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GCC stands for the GNU Compiler Collection,

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which includes CEC plus plus, Fortran 8 and a few others.

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I'll select next.

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As far as the editor theme,

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and this is really a preference for you,

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this dark monichi theme is really easy on the eyes

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but it doesn't show up too well on video.

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So I'm going to select

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the classic eclipse look for the videos.

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You can choose whatever your preference is.

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And I'll press next.

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I'll leave these defaults as is and press finish.

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Okay. Now, sometimes it opens up two windows

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like you see here.

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So I wanna save and exit

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and I wanna shut down all the versions that I've got going.

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I don't know why it does this, but it does it a few times.

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And I'll save and exit again.

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Alright, so now let's, now we're back to normal.

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Let's try that again.

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So we'll run CodeLite

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and let's make this full screen again. Perfect.

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Okay, so now what we need to do is

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we need to create a workspace.

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A workspace is an area

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where we can have our C plus plus projects.

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So we can have many C plus plus projects in one workspace.

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We can do that by selecting this button here

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called new workspace,

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or we can go up to file, new,

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new workspace either place.

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So I'm gonna select this button here.

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And it's gonna ask you for the workspace name.

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This could be any name you like.

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I'm going to say CPP workspace

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and I'm going to put this on my desktop.

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You can store it anywhere you like

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as long as you remember where it's at.

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So I'm gonna put this on my desktop.

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I want to create the workspace under a separate directory

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that'll help me organize my files better,

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and press okay.

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That's it.

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Now we've got a workspace

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which you can see here on the left side.

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I can right click on that now and create a new project.

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Again, I can also go up file, new project.

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So I'll do that.

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Now we've got some options here as to which template to use

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to create the project.

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We're gonna stick to the console template,

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which is just basically a terminal window.

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And we want G plus plus.

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That's the C plus plus compiler.

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It's called G plus plus

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because it's the GNU C plus plus compiler.

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I'll select next.

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What's my project name?

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It could be anything you like.

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Don't use spaces for any of these project names.

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So I'll just say test one.

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And again, I wanna create a project in a separate directory

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under the workspace.

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So I'll select next.

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Now it's gonna ask you which compiler do you want to use.

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You may have a lot of different compilers on your system.

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Just select the one that you used in the setup wizard

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and you'll be fine.

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And these defaults are perfectly fine.

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We'll select finish.

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And that creates a test project under the CPP workspace.

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And you can see it's called,

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it's created a source directory.

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And in there it's got a main CPP file.

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That's our C plus plus source code.

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And we'll get to that in a second.

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We need to do a couple of bits of configuration though

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before we we do anything else.

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Let's go to our project, test one in this case.

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And we'll right click

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and we'll go down to the bottom where it says settings

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and we'll select that.

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And then we'll go to where it says compiler options.

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And notice I'm in the global settings,

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that's pretty important.

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I'm in the global settings, compiler options.

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And then I'll select these three little dots here

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on the button.

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And I wanna make sure that W all is selected,

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that way we always get warnings

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and I wanna make sure that the C plus plus,

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standard C plus plus 14 is selected.

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That's the latest standard for C plus plus.

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That'll make sure that we're using

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the modern C plus plus compiler.

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At that point you can click okay, apply.

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Okay, good.

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Now we can go to our workspace and right click on that,

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and come down to workspace settings.

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And you'll see environment and code completion.

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Go to the code completion

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and select enable C plus plus 14 standard.

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The code completion is a tool

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that the integrated development environment uses

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that tries to figure out what I'm typing

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and what I want to type.

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And it helps predict what I want to do so it can help me

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so I don't have to type so much

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and it can do some checking as it goes.

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In this case, I'm just telling it

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to use the modern C plus plus compiler.

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I'll select okay.

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And that's it.

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Now we can run a simple test program.

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We'll double click the main CPP file.

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And this is actually C code, not C plus plus code.

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So we'll delete this in a minute

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but that font is a little small.

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So in my case, since I'm doing this on video,

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I'm gonna go to settings, colors and fonts.

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And I'm just gonna set that to about 16.

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And let's see.

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That's much better.

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You should see that much better.

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Okay, so let's delete all of this

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and we'll write a really simple C plus plus program

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as we go through the course.

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I'll talk about the anatomy of a C plus plus program

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and we'll go into detail

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as to what everything I'm gonna be typing here means.

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But for now, just type along

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and let's get a clean run

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so that we know our environments are set up.

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So the first thing we wanna write is,

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we wanna write pound include

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and IO stream inside angle brackets.

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Then we'll press enter.

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Then we'll say INT, main and open and close parens.

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Then we'll create,

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then we'll type a left curly

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and the integrated development environment

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will automatically close that for me.

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And here all I wanna do is say STD, two colons, and C out.

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Then the insertion operator, which is two less than signs

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with no space in between

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and just some string saying "Hello testing"

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or anything else you like.

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That has to be in double quotes.

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And then finally we'll put a semicolon on the end of that

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to terminate.

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And then finally, the last statement will be return zero.

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That means that the program terminated correctly.

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That's it.

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That's our first really simple C plus plus program.

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And like I said in the beginning of the course,

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I'll go through what all of this means

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and we'll go through the anatomy of a C plus plus program

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in great detail.

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I'll save this.

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Another option you may like is,

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if you come up here to the menu and you say view

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and it'll say toggle minimal view.

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And you can see it's putting a bunch of buttons up here.

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If you like this, this is great.

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Because you know you can run and compile

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and do all kinds of things just by clicking on a button.

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I'm not gonna use that

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because I find that's pretty distracting to the video.

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So what I'm going to do is

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I'm just gonna shut that off on my end,

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but feel free to use it.

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I'm gonna use command keys

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and I'll also just come up here and say, you know, build.

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And that way it's very explicit what I'm doing

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rather than just clicking on a button.

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So that's it.

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So let's run this.

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Now what what I'll do is I'll say build.

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First thing I want to do is I want to clean this project.

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That way there's no remnants of anything left over.

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It'll put it into a stable state.

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That's good to go.

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So I'll clean the project,

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all the, any messages will show up down here.

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Then I'll say build, and I'll just say run.

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And it's going to ask me

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do I just wanna run it or do I wanna build it and run it?

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Well, in this case, I have to build it and run it

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because I haven't built it yet.

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So I'll select build and execute.

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And if all goes well, we'll get a window that pops up

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that says "Hello, testing" exactly what we typed here.

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Press any key to continue, oh sorry

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press enter to continue, which I'm going to press now.

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The window goes away and we're done.

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Now several things could go wrong here.

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You may have an error in your program.

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You might have forgotten to type this exactly right.

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So you may have forgotten the semicolon.

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In which case when you go to build and run,

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you will see this red line here.

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That's a compiler error.

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You'll also see a red arrow over here

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telling you there's something wrong here.

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And the compiler's telling you,

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it's expecting a semicolon before the return.

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So put it in there.

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Just be really careful.

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I'll talk about debugging and fixing syntax errors

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throughout the entire course.

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But at this point, save it, make sure it's right.

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Again, be very careful.

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You may have extra quote marks

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and the compiler won't like it.

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You might only have a single less than sign here

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and it's not gonna like it.

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So it's just be sure it's exactly like this.

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Once you've got it set up, build, run, build and execute.

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There's a clean run and there's my terminal.

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Okay, so that's it.

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We're all set to learn C plus plus.