From 8a7dfa0972c83fd811a4296e7373574bea4a28d0 Mon Sep 17 00:00:00 2001 From: Nguyễn Gia Phong Date: Sun, 19 Jul 2020 20:34:40 +0700 Subject: [usth/ICT2.7] Remove Udacity transcribes --- .../1 - Lesson Overview - lang_en_vs5.srt | 39 --- .../2 - Eclipse Introduction - lang_en_vs5.srt | 91 ------ .../3 - IDE Overview - lang_en_vs6.srt | 143 --------- .../4 - Plug-Ins - lang_en_vs5.srt | 99 ------- ...pse Demo: Create Java Project - lang_en_vs5.srt | 323 --------------------- ... Eclipse Demo: Create a Class - lang_en_vs6.srt | 135 --------- ...lipse Demo: Run Configuration - lang_en_vs6.srt | 115 -------- .../8 - Eclipse Demo: Debugging - lang_en_vs5.srt | 275 ------------------ 8 files changed, 1220 deletions(-) delete mode 100644 usth/ICT2.7/P1L3 Integrated Development Environment Subtitles/1 - Lesson Overview - lang_en_vs5.srt delete mode 100644 usth/ICT2.7/P1L3 Integrated Development Environment Subtitles/2 - Eclipse Introduction - lang_en_vs5.srt delete mode 100644 usth/ICT2.7/P1L3 Integrated Development Environment Subtitles/3 - IDE Overview - lang_en_vs6.srt delete mode 100644 usth/ICT2.7/P1L3 Integrated Development Environment Subtitles/4 - Plug-Ins - lang_en_vs5.srt delete mode 100644 usth/ICT2.7/P1L3 Integrated Development Environment Subtitles/5 - Eclipse Demo: Create Java Project - lang_en_vs5.srt delete mode 100644 usth/ICT2.7/P1L3 Integrated Development Environment Subtitles/6 - Eclipse Demo: Create a Class - lang_en_vs6.srt delete mode 100644 usth/ICT2.7/P1L3 Integrated Development Environment Subtitles/7 - Eclipse Demo: Run Configuration - lang_en_vs6.srt delete mode 100644 usth/ICT2.7/P1L3 Integrated Development Environment Subtitles/8 - Eclipse Demo: Debugging - lang_en_vs5.srt (limited to 'usth/ICT2.7/P1L3 Integrated Development Environment Subtitles') diff --git a/usth/ICT2.7/P1L3 Integrated Development Environment Subtitles/1 - Lesson Overview - lang_en_vs5.srt b/usth/ICT2.7/P1L3 Integrated Development Environment Subtitles/1 - Lesson Overview - lang_en_vs5.srt deleted file mode 100644 index afc573d..0000000 --- a/usth/ICT2.7/P1L3 Integrated Development Environment Subtitles/1 - Lesson Overview - lang_en_vs5.srt +++ /dev/null @@ -1,39 +0,0 @@ -1 -00:00:00,650 --> 00:00:07,470 -Hi, and welcome to the first of several lessons on tools of the trade. I'm - -2 -00:00:07,470 --> 00:00:12,200 -very excited about these lessons, because I believe that tools are a cornerstone - -3 -00:00:12,200 --> 00:00:14,390 -of the software engineering discipline, and it - -4 -00:00:14,390 --> 00:00:17,570 -is of paramount importance to know and - -5 -00:00:17,570 --> 00:00:20,330 -use them. In this lesson, we will - -6 -00:00:20,330 --> 00:00:25,530 -talk about integrated development environments, normally called IDEs. - -7 -00:00:25,530 --> 00:00:29,780 -And these are software applications that support developers in many of their - -8 -00:00:29,780 --> 00:00:36,870 -everyday tasks, such as writing, compiling, and debugging code. And to make the - -9 -00:00:36,870 --> 00:00:42,470 -discussion more concrete we will focus on a specific IDE, Eclipse. We will - -10 -00:00:42,470 --> 00:00:47,250 -first present Eclipse, and then get some hands-on experience through a demo. diff --git a/usth/ICT2.7/P1L3 Integrated Development Environment Subtitles/2 - Eclipse Introduction - lang_en_vs5.srt b/usth/ICT2.7/P1L3 Integrated Development Environment Subtitles/2 - Eclipse Introduction - lang_en_vs5.srt deleted file mode 100644 index 1d0ff56..0000000 --- a/usth/ICT2.7/P1L3 Integrated Development Environment Subtitles/2 - Eclipse Introduction - lang_en_vs5.srt +++ /dev/null @@ -1,91 +0,0 @@ -1 -00:00:00,160 --> 00:00:02,750 -As I just told you, tools are fundamental in - -2 -00:00:02,750 --> 00:00:06,050 -software engineering. And I will stress this concept over and - -3 -00:00:06,050 --> 00:00:08,240 -over, throughout the class. And today we're going to talk - -4 -00:00:08,240 --> 00:00:11,310 -about a tool that is especially important, which is integrated - -5 -00:00:11,310 --> 00:00:15,060 -development environments, or IDEs. And you're probably familiar with - -6 -00:00:15,060 --> 00:00:18,060 -IDEs. So IDEs are environments that give you support for - -7 -00:00:18,060 --> 00:00:21,580 -your development activities. For example, for writing code, editing code, - -8 -00:00:21,580 --> 00:00:25,320 -compiling code, and so on. And we will focus specifically - -9 -00:00:25,320 --> 00:00:28,890 -on one particular IDE, which is called Eclipse. And - -10 -00:00:28,890 --> 00:00:31,450 -what I'm showing here is the two splash screens for - -11 -00:00:31,450 --> 00:00:35,350 -two versions of eclipse, Helios and Kepler. Eclipse is an - -12 -00:00:35,350 --> 00:00:39,200 -open, extensible development environment that was initially created by IBM - -13 -00:00:39,200 --> 00:00:41,510 -and is now managed by the Eclipse Foundation. And of - -14 -00:00:41,510 --> 00:00:43,840 -course, there are many other great IDEs such as for - -15 -00:00:43,840 --> 00:00:47,310 -example, Microsoft Visual Studio or Netbeans. We will be using - -16 -00:00:47,310 --> 00:00:50,830 -Eclipse because it is open and because it is multi-platform, - -17 -00:00:50,830 --> 00:00:52,390 -which means that you can use Eclipse - -18 -00:00:52,390 --> 00:00:55,140 -no matter what operating system we're using. - -19 -00:00:55,140 --> 00:00:59,030 -So if we consider the most commonly used operating system, such as Mac - -20 -00:00:59,030 --> 00:01:02,780 -OS, Windows, Linux, Eclipse runs on any - -21 -00:01:02,780 --> 00:01:04,769 -of these environments. Therefore, no matter what - -22 -00:01:04,769 --> 00:01:06,490 -you're using, you'll be able to install - -23 -00:01:06,490 --> 00:01:08,560 -Eclipse, run Eclipse, and follow the class. diff --git a/usth/ICT2.7/P1L3 Integrated Development Environment Subtitles/3 - IDE Overview - lang_en_vs6.srt b/usth/ICT2.7/P1L3 Integrated Development Environment Subtitles/3 - IDE Overview - lang_en_vs6.srt deleted file mode 100644 index e2b63b3..0000000 --- a/usth/ICT2.7/P1L3 Integrated Development Environment Subtitles/3 - IDE Overview - lang_en_vs6.srt +++ /dev/null @@ -1,143 +0,0 @@ -1 -00:00:00,130 --> 00:00:05,680 -So, now let's look in a little more detail to what is an IDE. An IDE is a - -2 -00:00:05,680 --> 00:00:09,790 -software application that supports software developers in many of - -3 -00:00:09,790 --> 00:00:13,840 -their everyday tasks. It has many useful features. Most IDEs - -4 -00:00:13,840 --> 00:00:16,790 -provide views that can be used to navigate, project - -5 -00:00:16,790 --> 00:00:20,140 -resources from different perspectives. For example, you might want to - -6 -00:00:20,140 --> 00:00:22,390 -look at your code differently when you're writing code, - -7 -00:00:22,390 --> 00:00:25,950 -and when you're debugging. They also normally provide an intelligent - -8 -00:00:25,950 --> 00:00:29,380 -source code editor. For example, an editor that will allow you - -9 -00:00:29,380 --> 00:00:32,110 -to browse the documentation when you're writing a code that - -10 -00:00:32,110 --> 00:00:35,780 -uses a specific method, or that will give you autocompletion when - -11 -00:00:35,780 --> 00:00:37,990 -you start writing the name of an object and you want to - -12 -00:00:37,990 --> 00:00:40,820 -get the methods for that object. And all of these things - -13 -00:00:40,820 --> 00:00:43,420 -can be very useful while you're developing and can save you a - -14 -00:00:43,420 --> 00:00:47,750 -lot of time. Modern IDE's will also normally give you support for - -15 -00:00:47,750 --> 00:00:49,540 -version control systems that then you - -16 -00:00:49,540 --> 00:00:52,490 -can use for softer configuration management. - -17 -00:00:52,490 --> 00:00:55,720 -And we're going to discuss in detail version control systems in - -18 -00:00:55,720 --> 00:00:58,380 -the next tools of the trade lesson, and we're also - -19 -00:00:58,380 --> 00:01:01,135 -going to see how it can be integrated within an IDE. - -20 -00:01:01,135 --> 00:01:04,730 -IDEs also give you builders so they give you build automation - -21 -00:01:04,730 --> 00:01:08,070 -tools, they give you runtime support. So that you can - -22 -00:01:08,070 --> 00:01:10,960 -run your projects from within the IDE and, for example, - -23 -00:01:10,960 --> 00:01:14,550 -observe some aspects of the execution. In addition to giving - -24 -00:01:14,550 --> 00:01:17,562 -you support for the runtime, they give you support for testing. - -25 -00:01:17,562 --> 00:01:21,267 -Many IDEs allow you to run tests from within - -26 -00:01:21,267 --> 00:01:23,520 -the IDE and to check the results of the tests - -27 -00:01:23,520 --> 00:01:26,300 -from within the IDE. Not only that. Normally, after you - -28 -00:01:26,300 --> 00:01:28,210 -run your tests, if there are some test cases that - -29 -00:01:28,210 --> 00:01:31,500 -fail, you can also use your IDEs to do debugging. - -30 -00:01:31,500 --> 00:01:35,620 -Many IDEs include graphical debuggers. Debuggers will allow you to - -31 -00:01:35,620 --> 00:01:39,400 -navigate through the code, set which points, stop and restart - -32 -00:01:39,400 --> 00:01:43,160 -the execution. Inspect variables, and do all of the activities - -33 -00:01:43,160 --> 00:01:46,320 -that help debugging. And, to help you be more efficient - -34 -00:01:46,320 --> 00:01:49,440 -and more effective when you do debugging. And into addition to - -35 -00:01:49,440 --> 00:01:52,760 -all these features that are listed here IDEs can normally provide - -36 -00:01:52,760 --> 00:01:56,650 -you even more features through a mechanishm that is called plugins. diff --git a/usth/ICT2.7/P1L3 Integrated Development Environment Subtitles/4 - Plug-Ins - lang_en_vs5.srt b/usth/ICT2.7/P1L3 Integrated Development Environment Subtitles/4 - Plug-Ins - lang_en_vs5.srt deleted file mode 100644 index 040293e..0000000 --- a/usth/ICT2.7/P1L3 Integrated Development Environment Subtitles/4 - Plug-Ins - lang_en_vs5.srt +++ /dev/null @@ -1,99 +0,0 @@ -1 -00:00:00,110 --> 00:00:03,134 -In fact most IDEs are extensible through the use of - -2 -00:00:03,134 --> 00:00:06,158 -plug-ins. And by the way, note that plug-ins might be - -3 -00:00:06,158 --> 00:00:09,326 -called differently on different platforms. For example, if you're using - -4 -00:00:09,326 --> 00:00:12,970 -a Microsoft Visual Studio, plug-ins are normally called add-ins, but - -5 -00:00:12,970 --> 00:00:15,598 -the concept is more or less the same. So, what - -6 -00:00:15,598 --> 00:00:18,555 -is a plug-in? Well, let's imagine our IDE to be - -7 -00:00:18,555 --> 00:00:22,320 -this box. A plug-in is additional functionality that you can - -8 -00:00:22,320 --> 00:00:25,430 -actually plug into this box so that this box starts - -9 -00:00:25,430 --> 00:00:28,830 -offering more features to the user. For example, you - -10 -00:00:28,830 --> 00:00:32,850 -can add to Eclipse the Checkstyle plug-in. Which, paraphrasing the - -11 -00:00:32,850 --> 00:00:35,950 -Checkstyle website, helps you ensure that your Java code - -12 -00:00:35,950 --> 00:00:38,890 -complies with a set of coding standards by inspecting the - -13 -00:00:38,890 --> 00:00:41,690 -code and pointing out items that deviate from a - -14 -00:00:41,690 --> 00:00:44,870 -defined set of coding rules. Again, this is a functionality - -15 -00:00:44,870 --> 00:00:47,330 -the core of Eclipse doesn't have. You can add - -16 -00:00:47,330 --> 00:00:50,600 -the Checkstyle plug-in, and this functionality will become available in - -17 -00:00:50,600 --> 00:00:54,840 -the IDE. Another example of plug-in is the EGit plug-in which - -18 -00:00:54,840 --> 00:00:58,660 -adds support for the Git version control system in Eclipse. And - -19 -00:00:58,660 --> 00:01:01,290 -actually this is something that we'll cover in detail, we'll have - -20 -00:01:01,290 --> 00:01:04,150 -a demo, and we will actually use it throughout the class, so - -21 -00:01:04,150 --> 00:01:07,018 -I'm not going to say anything more about the EGit plug-in for - -22 -00:01:07,018 --> 00:01:09,300 -now. But again, what the plug-in will do is to add - -23 -00:01:09,300 --> 00:01:13,220 -the Git functionality to Eclipse. A functionality that is not in - -24 -00:01:13,220 --> 00:01:16,110 -the core of Eclipse and that is available to the user after - -25 -00:01:16,110 --> 00:01:17,181 -you add the plug-in. diff --git a/usth/ICT2.7/P1L3 Integrated Development Environment Subtitles/5 - Eclipse Demo: Create Java Project - lang_en_vs5.srt b/usth/ICT2.7/P1L3 Integrated Development Environment Subtitles/5 - Eclipse Demo: Create Java Project - lang_en_vs5.srt deleted file mode 100644 index 8788858..0000000 --- a/usth/ICT2.7/P1L3 Integrated Development Environment Subtitles/5 - Eclipse Demo: Create Java Project - lang_en_vs5.srt +++ /dev/null @@ -1,323 +0,0 @@ -1 -00:00:00,070 --> 00:00:02,550 -In the rest of this lesson we're going to look at eclipse and - -2 -00:00:02,550 --> 00:00:05,290 -try to get more familiar with eclipse in a hands on manner - -3 -00:00:05,290 --> 00:00:07,550 -through a demo. In the demo we will cover some of the - -4 -00:00:07,550 --> 00:00:11,040 -basic aspects of eclipse like how to run eclipse, how to select - -5 -00:00:11,040 --> 00:00:14,400 -their workspace, how to create a project, how to create the class - -6 -00:00:14,400 --> 00:00:18,240 -within the project and so on. I'll also cover some more advanced - -7 -00:00:18,240 --> 00:00:21,610 -aspects, like how to create builders, run your project within Eclipse, and - -8 -00:00:21,610 --> 00:00:25,800 -how to use their Eclipse debugger. So let's get to the demo. - -9 -00:00:25,800 --> 00:00:28,220 -So let's start Eclipse. Eclipse is going to ask me - -10 -00:00:28,220 --> 00:00:31,600 -for the location of my workspace and in this - -11 -00:00:31,600 --> 00:00:34,530 -case, I selected a suitable directory and you can - -12 -00:00:34,530 --> 00:00:38,480 -also use that checkbox on the left to avoid Eclipse - -13 -00:00:38,480 --> 00:00:40,640 -for asking you again about where to put the - -14 -00:00:40,640 --> 00:00:43,860 -workspace. And the workspace is basically the place the - -15 -00:00:43,860 --> 00:00:48,310 -directory. Where, Eclipse will place all of your projects. - -16 -00:00:48,310 --> 00:00:50,830 -So, now when you start Eclipse, if it's the first - -17 -00:00:50,830 --> 00:00:53,480 -time you might get this Welcome screen. It's not going to happen - -18 -00:00:53,480 --> 00:00:57,500 -again on subsequent executions, but I just wanted to make sure - -19 -00:00:57,500 --> 00:01:00,210 -that I covered all the bases. And so, whatcha want to - -20 -00:01:00,210 --> 00:01:03,360 -do here is to basically go to the java perspective - -21 -00:01:03,360 --> 00:01:06,760 -which you can do by clicking over there or you can - -22 -00:01:06,760 --> 00:01:09,240 -also use the menus. So in this case we will have - -23 -00:01:09,240 --> 00:01:12,810 -to go to Window, open Perspective, and if the Perspective is - -24 -00:01:12,810 --> 00:01:15,660 -not here, you'll have to click on Other. And at this point, - -25 -00:01:15,660 --> 00:01:18,030 -that you can click on Java Perspective, then you - -26 -00:01:18,030 --> 00:01:21,680 -click okay. And the perspective is basically, the visual work - -27 -00:01:21,680 --> 00:01:24,810 -space where you will be operating. So, after we selected - -28 -00:01:24,810 --> 00:01:29,350 -perspective, we can actually close the welcome screen. And here, - -29 -00:01:29,350 --> 00:01:32,000 -you see that you have this different areas and on - -30 -00:01:32,000 --> 00:01:34,930 -the left You have the package explorer. This is the - -31 -00:01:34,930 --> 00:01:37,650 -area where your packages will be, you've got a task list, - -32 -00:01:37,650 --> 00:01:41,280 -and an outline on the right which we'll cover later. - -33 -00:01:41,280 --> 00:01:44,870 -And then you have underneath, the bottom, a problems, java - -34 -00:01:44,870 --> 00:01:48,330 -doc and declaration views and we will see some of - -35 -00:01:48,330 --> 00:01:51,320 -these views in actions later. And here in the center - -36 -00:01:51,320 --> 00:01:54,290 -you have the area. Which is called a code editor, - -37 -00:01:54,290 --> 00:01:58,360 -which is where you'll be writing, editing, and modifying, basically, - -38 -00:01:58,360 --> 00:02:00,440 -your code. This is where most of the action takes - -39 -00:02:00,440 --> 00:02:03,140 -place. So let's start by creating a Java project. And - -40 -00:02:03,140 --> 00:02:06,950 -to do that we can use either the context menu, or - -41 -00:02:06,950 --> 00:02:09,560 -you can just use the menu, select new Java project. - -42 -00:02:09,560 --> 00:02:12,390 -You'll be greeted by this, wizard, and. And at this - -43 -00:02:12,390 --> 00:02:15,500 -point in the wizard, you can select the name of - -44 -00:02:15,500 --> 00:02:19,100 -your project. I'm just going to call it a very simple way - -45 -00:02:19,100 --> 00:02:21,990 -my project. And I going to use the default location for - -46 -00:02:21,990 --> 00:02:24,070 -the project, as you can see it will be placed - -47 -00:02:24,070 --> 00:02:27,440 -in the work space that I selected before. I'm going to - -48 -00:02:27,440 --> 00:02:32,080 -also use the default. Java Runtime Environment, which is Java 1.7 - -49 -00:02:32,080 --> 00:02:36,250 -in this case. I'm going to keep the selected default layout - -50 -00:02:36,250 --> 00:02:39,120 -and the, then I'm going to go to the next step. Here, - -51 -00:02:39,120 --> 00:02:42,380 -we're first presented with the location of the source code for - -52 -00:02:42,380 --> 00:02:46,840 -our project. The default is a directory SRC in my project - -53 -00:02:46,840 --> 00:02:49,320 -and for the output file, the directory bin. So repeat, we're now - -54 -00:02:49,320 --> 00:02:52,410 -going to change that. Here in case you need other projects to - -55 -00:02:52,410 --> 00:02:55,240 -build your own, then you can specify them here. Here we - -56 -00:02:55,240 --> 00:02:57,570 -are building a simple project, so there's no need for that. - -57 -00:02:57,570 --> 00:03:00,890 -And here we can specify which libraries our project requires. As - -58 -00:03:00,890 --> 00:03:03,880 -you can see, the Java library's already specified. And you can - -59 -00:03:03,880 --> 00:03:07,840 -also add other jars, which can even be External jars. And - -60 -00:03:07,840 --> 00:03:11,840 -finally this is the tab that allows you to specify which - -61 -00:03:11,840 --> 00:03:14,300 -part of you project. So how your project will be exported, - -62 -00:03:14,300 --> 00:03:16,760 -so lets not worry about that for now. Lets click finish. - -63 -00:03:16,760 --> 00:03:19,300 -And as you can see here on the package explorer, my - -64 -00:03:19,300 --> 00:03:22,920 -project appeared. So now we can open the project by clicking - -65 -00:03:22,920 --> 00:03:24,920 -on the triangle right next to it, and as you can - -66 -00:03:24,920 --> 00:03:28,250 -see there is the SRC directory, where my source code will go, - -67 -00:03:28,250 --> 00:03:31,760 -and there's also an indication that we're using the JRE, so that's - -68 -00:03:31,760 --> 00:03:35,800 -the Java system directory within our project. And this is just for people - -69 -00:03:35,800 --> 00:03:38,860 -who are interested in what happens you know, under the hood. So - -70 -00:03:38,860 --> 00:03:41,840 -if you don't care about that, you can just skip this part. So - -71 -00:03:41,840 --> 00:03:45,200 -basically here I'm showing you how we can go to the directory - -72 -00:03:45,200 --> 00:03:49,250 -where the project was created. We can see the bin and src directories. - -73 -00:03:49,250 --> 00:03:52,020 -And there's also some other files here that you can - -74 -00:03:52,020 --> 00:03:54,780 -see these 'dot' files that you will not normally, see. And - -75 -00:03:54,780 --> 00:03:57,870 -those are kind of bookkeeping files. So these are files that - -76 -00:03:57,870 --> 00:04:02,280 -contain information about your project and that are created automatically by - -77 -00:04:02,280 --> 00:04:05,860 -Eclipse. And, for example, will have various indication about the - -78 -00:04:05,860 --> 00:04:09,580 -configuration of the project, some settings and the class path for - -79 -00:04:09,580 --> 00:04:11,880 -the project. And, as I said, you don't have to worry - -80 -00:04:11,880 --> 00:04:14,490 -about this if you just want to go Eclipse as you're never - -81 -00:04:14,490 --> 00:04:16,551 -going to mess with the command line. diff --git a/usth/ICT2.7/P1L3 Integrated Development Environment Subtitles/6 - Eclipse Demo: Create a Class - lang_en_vs6.srt b/usth/ICT2.7/P1L3 Integrated Development Environment Subtitles/6 - Eclipse Demo: Create a Class - lang_en_vs6.srt deleted file mode 100644 index 3bd4f11..0000000 --- a/usth/ICT2.7/P1L3 Integrated Development Environment Subtitles/6 - Eclipse Demo: Create a Class - lang_en_vs6.srt +++ /dev/null @@ -1,135 +0,0 @@ -1 -00:00:00,130 --> 00:00:02,420 -So now that we know, we saw what happens under - -2 -00:00:02,420 --> 00:00:04,570 -the hood, and as I said, don't worry about it if - -3 -00:00:04,570 --> 00:00:06,689 -you don't care about that part. Now we can go back - -4 -00:00:06,689 --> 00:00:09,850 -to Eclipse, and we can start creating a package. A package - -5 -00:00:09,850 --> 00:00:13,125 -is basically a way of organizing your classes into a - -6 -00:00:13,125 --> 00:00:17,015 -hierarchy. In this case, I'm going to specify the package name as - -7 -00:00:17,015 --> 00:00:21,350 -edu.gatech, which means that I'm creating really two packages, a package - -8 -00:00:21,350 --> 00:00:25,480 -gatech inside package edu. And I can start creating classes inside - -9 -00:00:25,480 --> 00:00:28,770 -my packages. So here, I can use the contextual menu, select - -10 -00:00:28,770 --> 00:00:32,055 -New>Class, and I'll get another wizard that will allow me to - -11 -00:00:32,055 --> 00:00:35,160 -specify the name of the class. I'm not very creative here, - -12 -00:00:35,160 --> 00:00:38,250 -so I'm just going to call it Hello World. There's many other parameters - -13 -00:00:38,250 --> 00:00:41,710 -you can set, and in particular, you can define whether you - -14 -00:00:41,710 --> 00:00:45,450 -want a main method in your class. Where having a main - -15 -00:00:45,450 --> 00:00:48,460 -method means that your class can be the main class in - -16 -00:00:48,460 --> 00:00:50,850 -your project, can be the one that is run when you run - -17 -00:00:50,850 --> 00:00:54,340 -your project. After we click the button, the Finish button, we, - -18 -00:00:54,340 --> 00:00:56,859 -we get the class. So we also get template code for the - -19 -00:00:56,859 --> 00:00:59,604 -class, as you can see here, so we go to the editor - -20 -00:00:59,604 --> 00:01:02,120 -function, you can see that there is a to do. Where you - -21 -00:01:02,120 --> 00:01:05,019 -have to put your code, and here we are simply, basically printing, - -22 -00:01:05,019 --> 00:01:08,370 -you know, the typical first program. We just going to print Hello World - -23 -00:01:08,370 --> 00:01:11,180 -in Java. And something you can note is that as we are - -24 -00:01:11,180 --> 00:01:16,370 -typing, Eclipse gives us a auto complete suggestions, which is very helpful. - -25 -00:01:16,370 --> 00:01:19,650 -For example, in case you don't remember the exact syntax, - -26 -00:01:19,650 --> 00:01:22,190 -or the method, or you don't remember the parameters of the - -27 -00:01:22,190 --> 00:01:24,470 -method. Which is, you know, often the case especially where you - -28 -00:01:24,470 --> 00:01:27,590 -work with large libraries. So having that feature can really, really - -29 -00:01:27,590 --> 00:01:30,050 -help you. So now if we want to run our code - -30 -00:01:30,050 --> 00:01:33,380 -we can either click on the button up here, or we - -31 -00:01:33,380 --> 00:01:37,960 -can right-click in the Call window and select Run As Java - -32 -00:01:37,960 --> 00:01:41,370 -Application. And if we do that, Eclipse will run our tool, - -33 -00:01:41,370 --> 00:01:45,650 -and it will create, as you can see here, a console view that basically contains - -34 -00:01:45,650 --> 00:01:49,790 -the textual output of my program. And as expected, the output is Hello World. diff --git a/usth/ICT2.7/P1L3 Integrated Development Environment Subtitles/7 - Eclipse Demo: Run Configuration - lang_en_vs6.srt b/usth/ICT2.7/P1L3 Integrated Development Environment Subtitles/7 - Eclipse Demo: Run Configuration - lang_en_vs6.srt deleted file mode 100644 index ad54f06..0000000 --- a/usth/ICT2.7/P1L3 Integrated Development Environment Subtitles/7 - Eclipse Demo: Run Configuration - lang_en_vs6.srt +++ /dev/null @@ -1,115 +0,0 @@ -1 -00:00:00,140 --> 00:00:02,660 -So now that we have run our program, let's see what - -2 -00:00:02,660 --> 00:00:05,660 -happens exactly when you run a program within Eclipse. And to - -3 -00:00:05,660 --> 00:00:08,410 -do that I'm going to use the menu over here which is - -4 -00:00:08,410 --> 00:00:12,500 -the Run menu and I'm going to select Run Configurations, and this - -5 -00:00:12,500 --> 00:00:15,190 -brings up a window where you can change or run configurations. - -6 -00:00:15,190 --> 00:00:17,200 -Well first of all, you can see that here on the - -7 -00:00:17,200 --> 00:00:22,260 -left under Java application. Eclipse automatically created a Hello World run - -8 -00:00:22,260 --> 00:00:25,300 -configuration for our program. And this is where you can configure - -9 -00:00:25,300 --> 00:00:28,370 -the different parameters for your execution. For example, - -10 -00:00:28,370 --> 00:00:30,520 -you can select the main class. So here - -11 -00:00:30,520 --> 00:00:34,745 -it's, obviously, edu.gatech.HelloWorld. You can define different program - -12 -00:00:34,745 --> 00:00:36,920 -arguments. We don't have any for now. You can - -13 -00:00:36,920 --> 00:00:39,480 -also pass arguments to the virtual machine. You - -14 -00:00:39,480 --> 00:00:41,960 -can define which Java runtime environment you want to - -15 -00:00:41,960 --> 00:00:47,720 -use, Classpath and other environmental options. So let's - -16 -00:00:47,720 --> 00:00:50,650 -now try to pass some arguments to our program. - -17 -00:00:50,650 --> 00:00:54,390 -So for example here, I am just going to write George as - -18 -00:00:54,390 --> 00:00:58,450 -a possible parameter. I say Apply so that modify the configuration and - -19 -00:00:58,450 --> 00:01:01,510 -if i run the program of course, the output is not changing - -20 -00:01:01,510 --> 00:01:04,440 -because my program does not use the argument. But, let's see if - -21 -00:01:04,440 --> 00:01:07,060 -we do use the argument, what happens. So I'm going to slightly - -22 -00:01:07,060 --> 00:01:10,030 -modify the final program so that now, instead of printing hello - -23 -00:01:10,030 --> 00:01:13,420 -world, it will print hello followed by the first argument that I - -24 -00:01:13,420 --> 00:01:15,700 -will pass to the program. And if I do that, and I - -25 -00:01:15,700 --> 00:01:19,420 -go and I run the program, what I get is exactly what I - -26 -00:01:19,420 --> 00:01:23,420 -was expecting, which is Hello George. So this is the way in which you - -27 -00:01:23,420 --> 00:01:26,120 -can pass arguments to your execution, which - -28 -00:01:26,120 --> 00:01:27,640 -is something that might come in handy - -29 -00:01:27,640 --> 00:01:30,390 -for some other projects. When you need to run some code with an argument. diff --git a/usth/ICT2.7/P1L3 Integrated Development Environment Subtitles/8 - Eclipse Demo: Debugging - lang_en_vs5.srt b/usth/ICT2.7/P1L3 Integrated Development Environment Subtitles/8 - Eclipse Demo: Debugging - lang_en_vs5.srt deleted file mode 100644 index 025c2ba..0000000 --- a/usth/ICT2.7/P1L3 Integrated Development Environment Subtitles/8 - Eclipse Demo: Debugging - lang_en_vs5.srt +++ /dev/null @@ -1,275 +0,0 @@ -1 -00:00:00,160 --> 00:00:03,090 -Now let's look at how we can do debugging within - -2 -00:00:03,090 --> 00:00:06,240 -Eclipse. I created a new file called AddNumbers which I'm - -3 -00:00:06,240 --> 00:00:10,770 -showing here. It takes two numbers, parses them into integers, - -4 -00:00:10,770 --> 00:00:14,870 -adds them and prints the sum, supposedly, of the two numbers. - -5 -00:00:14,870 --> 00:00:17,450 -Now we look at the run configuration for this program, - -6 -00:00:17,450 --> 00:00:19,670 -and here you can see that we're passing two arguments, - -7 -00:00:19,670 --> 00:00:22,060 -two and five, to the program. So now let's run - -8 -00:00:22,060 --> 00:00:25,468 -our program and see what happens. And the result says that - -9 -00:00:25,468 --> 00:00:28,150 -2 plus 5 is equal to 10, which is not - -10 -00:00:28,150 --> 00:00:31,030 -exactly correct. So we need to debug our program. We - -11 -00:00:31,030 --> 00:00:33,310 -need to figure out what's wrong with the program, why - -12 -00:00:33,310 --> 00:00:37,140 -the wrong result was, produced. So we're going to add a break - -13 -00:00:37,140 --> 00:00:40,260 -point here by double-clicking here on the side of the - -14 -00:00:40,260 --> 00:00:42,940 -code. And the break point is basically a place where I'm - -15 -00:00:42,940 --> 00:00:46,240 -telling my debugger to stop during the execution because I - -16 -00:00:46,240 --> 00:00:50,750 -want to inspect the state of the program. So to start - -17 -00:00:50,750 --> 00:00:54,690 -debugging, we select Debug as Java Application from the Context - -18 -00:00:54,690 --> 00:00:58,170 -menu, similar to what we were doing for running the program. - -19 -00:00:58,170 --> 00:01:00,190 -And as you can see, this asks us whether we want - -20 -00:01:00,190 --> 00:01:03,720 -to pass to the debug perspective, which is a, a perspective - -21 -00:01:03,720 --> 00:01:07,110 -specifically designed for debugging. We say yes. And as you - -22 -00:01:07,110 --> 00:01:10,750 -see here, it shows us, it's like a different, set of - -23 -00:01:10,750 --> 00:01:13,310 -views, so we can see the code down here with an - -24 -00:01:13,310 --> 00:01:16,100 -indication of where the execution is. And of course the execution - -25 -00:01:16,100 --> 00:01:18,610 -stopped at the break point, which is exactly where - -26 -00:01:18,610 --> 00:01:21,850 -we told the debugger to stop. So let's look at - -27 -00:01:21,850 --> 00:01:24,400 -some of the other views in this perspective. The view - -28 -00:01:24,400 --> 00:01:27,370 -here on the right-hand side, for example, shows the variables - -29 -00:01:27,370 --> 00:01:30,720 -in scope and the break points that are currently active - -30 -00:01:30,720 --> 00:01:33,240 -for the debugging session. This is where the editor is - -31 -00:01:33,240 --> 00:01:36,710 -at. The outline of the program and the console at - -32 -00:01:36,710 --> 00:01:41,520 -the bottom. So now let's execute one line by clicking - -33 -00:01:41,520 --> 00:01:45,400 -on the Step Over button here at the top, and this will - -34 -00:01:45,400 --> 00:01:49,150 -execute the line that is currently highlighted and therefore it will move to - -35 -00:01:49,150 --> 00:01:51,500 -the next line. And as you can see, one nice feature is that - -36 -00:01:51,500 --> 00:01:54,760 -if I move the mouse over a variable, I can see the value - -37 -00:01:54,760 --> 00:01:57,710 -of the variable. And the same thing I can do if I look - -38 -00:01:57,710 --> 00:02:00,690 -at the variables windows here on the right. If I click it, it - -39 -00:02:00,690 --> 00:02:03,960 -will tell me what is the value of the variable, and in case - -40 -00:02:03,960 --> 00:02:07,410 -of more complex variables you can even expand it and get more details. - -41 -00:02:07,410 --> 00:02:10,870 -So now let's step over another line by clicking again this button, - -42 -00:02:10,870 --> 00:02:13,180 -and as you can see now we get to the line that - -43 -00:02:13,180 --> 00:02:16,410 -is actually performing the sum, supposedly, so now let's do the same - -44 -00:02:16,410 --> 00:02:19,100 -thing that we did before, and let's mouse over b, and we can - -45 -00:02:19,100 --> 00:02:22,150 -see that the value of b is five, as expected. So now - -46 -00:02:22,150 --> 00:02:27,080 -let's step over this line as well, and execute the actual sum. And - -47 -00:02:27,080 --> 00:02:29,730 -doing the mouseover thing, we can see that the value of sum - -48 -00:02:29,730 --> 00:02:33,000 -is ten, which is not right, of course. In fact, if we check - -49 -00:02:33,000 --> 00:02:35,590 -a gain we can see that value of A is two. The - -50 -00:02:35,590 --> 00:02:39,130 -value of B is five and therefore it's clear that there's something - -51 -00:02:39,130 --> 00:02:41,780 -wrong going on here, and at this point we can notice that - -52 -00:02:41,780 --> 00:02:44,030 -here we are doing multiplication instead - -53 -00:02:44,030 --> 00:02:46,010 -of addition. And therefore that's what the - -54 -00:02:46,010 --> 00:02:49,260 -error is. And this is clearly a very simple case. Right? A - -55 -00:02:49,260 --> 00:02:51,440 -case in which probably you just needed to look at the code and - -56 -00:02:51,440 --> 00:02:54,150 -you didn't need the debugger. But you probably got the idea right? - -57 -00:02:54,150 --> 00:02:58,055 -So this can be extremely useful when you're debugging, when you're studying more - -58 -00:02:58,055 --> 00:03:01,533 -complex programs. If you want to stop the debugger because you're - -59 -00:03:01,533 --> 00:03:04,557 -done with your debugging session as in this case, you can - -60 -00:03:04,557 --> 00:03:07,518 -either click here on the Terminate button or you can also - -61 -00:03:07,518 --> 00:03:11,109 -just simply tell the debugger to continue the execution, to resume - -62 -00:03:11,109 --> 00:03:15,140 -the execution until the program terminates naturally. So, in this case, - -63 -00:03:15,140 --> 00:03:17,520 -we're going to click here just to show what happens. And what - -64 -00:03:17,520 --> 00:03:20,230 -happens is that, you know, the execution will just continue until - -65 -00:03:20,230 --> 00:03:23,690 -the program exits. So now let's say that we want to fix - -66 -00:03:23,690 --> 00:03:27,740 -this problem that we just discovered. So we replace the multiplication - -67 -00:03:27,740 --> 00:03:30,600 -with an addition, we save the program, and we execute the - -68 -00:03:30,600 --> 00:03:33,860 -program again by clicking on this button. And at this point, - -69 -00:03:33,860 --> 00:03:37,320 -unsurprisingly, we get the right result as shown in the console. -- cgit 1.4.1