Difference between revisions of "Netbeans/C2/Integrating-an-Applet-in-a-Web-Application/English-timed"
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|Go to '''File>New Project''' and create a '''Java Class Library ''' | |Go to '''File>New Project''' and create a '''Java Class Library ''' | ||
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|Click ''Next''' | |Click ''Next''' | ||
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|Set the Location to any directory on your system | |Set the Location to any directory on your system | ||
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|and displays a message that illustrates the order in which the methods in the applet, | |and displays a message that illustrates the order in which the methods in the applet, | ||
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|So that we can make the applet available to the user | |So that we can make the applet available to the user | ||
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|and Click '''Next''' | |and Click '''Next''' | ||
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|Now Let us next embed the applet in a HTML file, | |Now Let us next embed the applet in a HTML file, | ||
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Revision as of 16:12, 14 July 2015
| Time | Narration |
| 00:01 | Hii everyone. |
| 00:02 | Welcome to the tutorial on Integrating an Applet in a Web Application |
| 00:08 | The application that you build in this tutorial shows you how to build and deploy applets in the Netbeans IDE. |
| 00:16 | If this is the first time you are using Netbeans, please view the tutorials, |
| 00:21 | Introduction to Netbeans, to get started with the IDE. |
| 00:25 | Also view the tutorials Developing Web Applications and Designing GUIs on Netbeans |
| 00:32 | to get familiarised with the IDE. |
| 00:36 | All the above tutorials can be viewed on the spoken tutorial website |
| 00:41 | For this demonstration, I am using the Linux Operating System Ubuntu v11.04 and Netbeans IDE v7.1.1 |
| 00:55 | In this tutorial, we will |
| 00:57 | Create an Applet |
| 00:59 | Run the Applet; and |
| 01:02 | Embed the applet in a web application |
| 01:05 | Let us now launch the IDE to create our project. |
| 01:10 | Go to File>New Project and create a Java Class Library |
| 01:17 | Click Next' |
| 01:19 | Give your Project a name |
| 01:21 | I will name my Project as SampleApplet. |
| 01:26 | Set the Location to any directory on your system |
| 01:30 | And Click Finish to create your project |
| 01:34 | Let us Next create the Applet Source File |
| 01:39 | Right-Click on the SampleApplet project node |
| 01:42 | and choose Properties to open the Properties window. |
| 01:47 | Select the desired Source and Binary Format for the project. |
| 01:53 | This is to make sure if the correct version of the JDK has been chosen. |
| 01:59 | For example, if you choose the latest version of JDK, |
| 02:04 | then the applet might not run on machines that have an older version of the Java browser plugin. |
| 02:10 | I will select the latest version of JDK since my browser supports the latest version of the java browser pluggin |
| 02:19 | Click on OK |
| 02:21 | Right-Click again on the SampleApplet project node |
| 02:25 | and select New >Applet |
| 02:29 | If you do not find the applet option in this contextual menu, Click on Other |
| 02:35 | Under Categories, select Java. |
| 02:38 | And Under File Types, select Applet to create an Applet |
| 02:43 | Give the Class name as Sample and the Package as org.me.hello |
| 02:55 | Click Finish |
| 02:57 | The IDE creates the applet source file in the specified package. |
| 03:02 | You can expand the Source Package node in the Projects window to see this. |
| 03:08 | The Applet source file opens in the source editor. |
| 03:12 | Let us now define our applet class. |
| 03:17 | I have the code for a simple applet, |
| 03:21 | that sets the background color to cyan, |
| 03:24 | the foreground color to red, |
| 03:27 | and displays a message that illustrates the order in which the methods in the applet, |
| 03:34 | i.e. the init() method, the start() method, and the paint() methods are called, when the applet starts up. |
| 03:43 | I will copy the entire code on my clipboard and paste it over the existing code in the IDE. |
| 03:54 | Right-Click on the Sample.java file in the Projects window, |
| 04:00 | and choose Run File from the contextual menu. |
| 04:04 | The Sample.html launcher file, with the applet embedded, is created in the build folder, |
| 04:13 | which you can see in the Files window. |
| 04:15 | Sample dot html file |
| 04:18 | The Applet is also launched in the Applet viewer. |
| 04:23 | With the message display on the screen |
| 04:27 | Let me close the appletviewer |
| 04:29 | And let us next embed the Applet in a Web Application |
| 04:33 | So that we can make the applet available to the user |
| 04:37 | To do so, we create a Web Application, |
| 04:42 | Under Categories select java web and under Projects select Web application |
| 04:48 | and Click Next |
| 04:50 | We wll name our Project as HelloSampleApplet and |
| 05:01 | Click Next |
| 05:03 | See if the correct server is selected and click Finish to create your Project |
| 05:12 | Note that, when we add the Java project SampleApplet to the web project HelloSampleApplet |
| 05:20 | we enable to IDE to build the applet whenever we build this web application. |
| 05:26 | Therefore, when we modify the Sample dot java applet |
| 05:34 | the IDE builds a new version of the applet whenever this is built. |
| 05:40 | Now In the Projects window, right-click the HelloSampleApplet project node, |
| 05:45 | and Click on Properties |
| 05:49 | Our applet is in a Java project, |
| 05:52 | To add the Jar file select the Packaging option from the menu on the left side of the window |
| 05:59 | click on Add Project and select the java project that contains the Applet class |
| 06:05 | In this case it is SampleApplet |
| 06:09 | Click on Add Project Jar Files |
| 06:14 | The JAR file containing the applet source file is now listed in the table |
| 06:20 | Click on OK |
| 06:24 | And let us build the HelloSampleApplet project now by right clicking on it in the Projects Window |
| 06:31 | and selecting Clean and Build options |
| 06:36 | Now when this project is built the applets Jar file is generated in the original SampleApplet Project |
| 06:45 | Go to the Files Window expand the HelloSampleApplet Project node |
| 06:51 | Under build and web folder |
| 06:54 | You can see that the jar file has been added |
| 06:58 | Now Let us next embed the applet in a HTML file, |
| 07:02 | Go back to the Project Window, right-click on the HelloSampleApplet project node, |
| 07:09 | choose New and select the HTML file option |
| 07:13 | If you cannot find the HTML option in this contextual menu |
| 07:18 | Click on Other |
| 07:21 | Select Web under Categories and select HTML under File Types and click Next |
| 07:29 | Give your Html file a name |
| 07:32 | I will name the file as MyApplet and Click on Finish. |
| 07:40 | The next step is to enter the applet tag in between the body tags in MyApplet dot html file |
| 07:48 | I have the applet code here |
| 07:51 | Let me copy it onto my clipboard and paste it in between the body tags in the html file |
| 08:03 | The Next step is to run the html file |
| 08:07 | Right click on MyApplet dot html in the project windows and select Run File |
| 08:14 | The server deploys the html file in the IDE default browser |
| 08:25 | Now the server as deploy the html file in the IDE's default browser |
| 08:30 | You can see the message displayed across the screen |
| 08:36 | Now to the assignment |
| 08:38 | As your assignment create another simple banner applet in the IDE, |
| 08:43 | where the applet scrolls a message across the applet's window. |
| 08:49 | Embed your applet in a web application, |
| 08:52 | and add JAR files to the web project and, |
| 08:56 | finally create and run the HTML file. |
| 09:00 | I have created my own moving banner applet |
| 09:04 | Let me open the project and run it |
| 09:18 | You can see that the applet has opened with the message scrolling across the Window |
| 09:28 | Watch the video available at the link shown on the screen. |
| 09:32 | It summarizes the Spoken Tutorial project. |
| 09:36 | If you do not have good bandwidth, you can download and watch the videos. |
| 09:41 | The Spoken Tutorial project team conduct workshops using Spoken Tutorials. |
| 09:46 | Gives certificates to those who pass an online test. |
| 09:51 | For more details please write to contact@spoken-tutorial.org |
| 09:58 | Spoken Tutorial Project is a part of the Talk to a Teacher Project |
| 10:04 | Supported by the National Mission on education through ICT, MHRD, Government of India |
| 10:11 | More information on this mission is available at spoken-tutorial.org/NMEICT-Intro |
| 10:22 | This tutorial has been contributed by IT for Change |
| 10:27 | Thank you for joining us. |
