Difference between revisions of "Netbeans/C2/Developing-a-Sample-Web-Application/English-timed"

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| 00:01
 
| 00:01
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| Hi everybody.
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| Hi everybody.Welcome to the  tutorial on introduction to '''Developing Web Applications''' on the '''Netbeans IDE'''.  
−
 
+
−
|-
+
−
| 00:02
+
−
| Welcome to the  tutorial on introduction to '''Developing Web Applications''' on the '''Netbeans IDE'''.  
+
  
 
|-
 
|-
 
|00:08
 
|00:08
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|We assume that you have the basic working knowledge of netbeans.
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|We assume that you have the basic working knowledge of '''Netbeans'''.
  
 
|-
 
|-
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|-
 
|-
 
|00:22
 
|00:22
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|with the installation and interface of Netbeans.  
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|with the installation and '''interface''' of Netbeans.  
  
 
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|-
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|-
 
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| 00:29
 
| 00:29
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|For this demonstration, I am using the '''Linux Operating System Ubuntu v11.04''' and '''Netbeans IDE v7.1.1'''.  
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|For this demonstration, I am using the '''Linux Operating System Ubuntu''' version '''11.04''' and '''Netbeans IDE''' version '''7.1.1'''.  
  
 
|-
 
|-
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|-
 
|-
 
| 00:45
 
| 00:45
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|We will see -  
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|We will see - Setting up a '''web-application project'''
−
 
+
−
|-
+
−
| 00:46
+
−
|* Setting up a web-application project
+
  
 
|-
 
|-
 
|00:49
 
|00:49
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|* Creating and editing web-applications '''source files'''
+
|Creating and editing web-applications '''source files'''
  
 
|-
 
|-
 
|00:52
 
|00:52
−
|* Creating a java package and a java source file  
+
|Creating a '''java package''' and a '''java source file'''
  
 
|-
 
|-
 
|00:56
 
|00:56
−
|* Generating the '''Getter''' and '''Setter''' methods
+
|Generating the '''Getter''' and '''Setter''' methods
  
 
|-
 
|-
 
|00:59
 
|00:59
−
|* Editing the default '''Java Server Pages''' file
+
|Editing the default '''Java Server Pages''' file
  
 
|-
 
|-
 
|01:02
 
|01:02
−
|* Creating a '''JavaServer pages''' file and
+
|Creating a '''JavaServer pages''' file and
  
 
|-
 
|-
 
| 01:05
 
| 01:05
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| * finally running our web-application project.  
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| finally running our web-application project.  
  
 
|-
 
|-
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|-
 
|-
 
|01:13
 
|01:13
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|* The '''Java Development Kit (JDK)''' version 6
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|The '''Java Development Kit (JDK)''' version 6
  
 
|-
 
|-
 
|01:17
 
|01:17
−
|* The '''GlassFish Server Open Source Edition'''.
+
|The '''GlassFish Server Open Source Edition'''.
  
 
|-
 
|-
 
|01:20
 
|01:20
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|All the above can be downloaded in a single bundle from the link shown on the screen.
+
|All the above can be downloaded in a single bundle from the '''link''' shown on the '''screen'''.
  
 
|-
 
|-
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|-
 
|-
 
|01:30
 
|01:30
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|deploy it to a server,  
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|deploy it to a '''server''',  
  
 
|-
 
|-
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|-
 
|-
 
|01:35
 
|01:35
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|The application employes (JSP)  '''Java Server Pages''', to ask you, to input your name.
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|The application employs (JSP)  '''Java Server Pages''', to ask you, to input your name.
  
 
|-
 
|-
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|-
 
|-
 
|02:29
 
|02:29
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|And select the server, you want to deploy your application to.
+
|And, select the server, you want to deploy your application to.
  
 
|-
 
|-
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|-
 
|-
 
| 02:57
 
| 02:57
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| You can view the project's file structure in the '''Files''' window on the left here  
+
| You can view the project's file structure in the '''Files''' window on the left, here,
  
 
|-
 
|-
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|-
 
|-
 
|03:20
 
|03:20
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|Note that the Source Packages node contains only  an empty default package node.  
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|Note that the '''Source Packages''' node contains only  an empty "default package" node.  
  
 
|-
 
|-
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|-
 
|-
 
| 03:40
 
| 03:40
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|and in the '''Package''' combo-box, let me type: '''org.mypackage.hello'''.
+
|and in the '''Package''' combo-box, let me type: "org.mypackage.hello"
  
 
|-
 
|-
 
| 03:54
 
| 03:54
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|And click '''Finish.'''  
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|and click '''Finish.'''  
  
 
|-
 
|-
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|-
 
|-
 
| 04:12
 
| 04:12
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|  I will also add a '''constructor''' '''public NameHandler''' to the '''class'''.
+
|  I will also add a '''constructor''' '''public NameHandler()''' to the '''class'''.
  
 
|-
 
|-
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|-
 
|-
 
| 04:30
 
| 04:30
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|Let us next generate the '''Getter and Setter Methods'''.  
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|Let us next generate the '''Getter''' and '''Setter Method'''s.  
  
 
|-
 
|-
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|-
 
|-
 
| 04:46
 
| 04:46
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|'''Refactoring''' is a disciplined technique for improving the structure of existing code, without changing the observable behavior.  
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|'''Refactoring''' is a disciplined technique for improving the structure of the existing code, without changing the observable behavior.  
  
 
|-
 
|-
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|-
 
|-
 
| 05:16
 
| 05:16
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| Notice that the '''Fields Visibility''' is  set to '''private'''
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| Notice that the '''Fields Visibility''' is  set to "private"
  
 
|-
 
|-
 
| 05:20
 
| 05:20
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|and '''Accessors visibility''' is set to '''public,''' by default,  
+
|and the '''Accessors Visibility''' is set to "public", by default,  
  
 
|-
 
|-
 
| 05:24
 
| 05:24
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| indicating that the '''access modifier''' for the class variables will be specified as '''private'''  
+
| indicating that the '''access modifier''' for the '''class variable'''s will be specified as '''private'''  
 +
 
 
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| 05:30
 
| 05:30
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|-
 
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| 05:46
 
| 05:46
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|The modifier for the class variable is set to '''private''' whereas the  '''getter''' and '''setter''' methods are generated with public modifier.  
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|The modifier for the class variable is set to "private" whereas the  '''getter''' and '''setter''' methods are generated with "public" '''modifier'''.  
  
 
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|-
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|-
 
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|Let us refocus the '''index.jsp''' file by clicking its tab, displayed at the top of the Source editor.  
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|Let us refocus the 'index.jsp' file by clicking its tab, displayed at the top of the '''Source editor'''.  
  
 
|-
 
|-
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|-
 
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| 06:42
 
| 06:42
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|The '''Insert Form''' dialog-box opens .  
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|The '''Insert Form''' dialog-box opens.  
  
 
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|-
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|-
 
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|The '''Action''' as  '''response.jsp'''
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|the '''Action''' as  "response.jsp",
  
 
|-
 
|-
 
| 06:54
 
| 06:54
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|The '''Method''' as '''GET '''.
+
|the '''Method''' as "GET".  
  
 
|-
 
|-
 
| 06:56
 
| 06:56
−
|And, let's  give our '''form''' a name as "Name input form".
+
|And, let's  give our '''form''' a name as "Name Input Form".
  
 
|-
 
|-
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|-
 
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| 07:07
 
| 07:07
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|An HTML '''form''' is added to the '''index.jsp file.'''
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|An HTML '''form''' is added to the 'index.jsp' file.  
  
 
|-
 
|-
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|-
 
|-
 
| 07:58
 
| 07:58
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|Specify the '''Label''' as '''OK''',  
+
|Specify the '''Label''' as "OK",  
  
 
|-
 
|-
 
| 08:00
 
| 08:00
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|the '''Type''' as '''submit''',
+
|the '''Type''' as "submit"
  
 
|-
 
|-
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|-
 
|-
 
| 08:22
 
| 08:22
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|And let us  change the default text between the '''h1'''  tags.  
+
|And, let us  change the default text between the '''h1'''  tags.  
  
 
|-
 
|-
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|-
 
|-
 
| 08:34
 
| 08:34
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|Now right-click, let me close the palette manager for now.
+
|Now, right-click. Let me close the palette manager, for now.
  
 
|-
 
|-
 
| 08:38
 
| 08:38
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|Right-click within your Source Editor.  
+
|Right-click within your '''Source Editor'''.  
  
 
|-
 
|-
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|-
 
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| 08:46
 
| 08:46
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|Your '''index.jsp''' file should now look like this.
+
|Your 'index.jsp' file should now look like this.
  
 
|-
 
|-
 
| 08:49
 
| 08:49
−
|Let us next create a '''JavaServer Pages''' File.  
+
|Let us next create a '''JavaServer Pages''' file.  
  
 
|-
 
|-
 
| 08:53
 
| 08:53
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|In the Projects window, right-click on the '''HelloWeb''' project node, choose '''New > JSP. '''
+
|In the '''Projects''' window, right-click on the '''HelloWeb''' project node, choose '''New > JSP. '''
  
 
|-
 
|-
 
| 09:01
 
| 09:01
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|The '''New JSP''' File wizard opens.  
+
|The '''New JSP''' file wizard opens.  
  
 
|-
 
|-
 
| 09:05
 
| 09:05
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|Name the file as "response" and click on '''Finish. '''
+
|Name the file as "response" and click on '''Finish.'''
  
 
|-
 
|-
 
| 09:14
 
| 09:14
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|Notice that a '''response.jsp''' file node displays in the '''Projects''' window, beneath the '''index.jsp file'''
+
|Notice that a 'response.jsp' '''file node''' displays in the '''Projects''' window, beneath the '''index.jsp file'''
  
 
|-
 
|-
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|-
 
|-
 
| 09:26
 
| 09:26
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|Open the Palette manager again.  
+
|Open the '''Palette manager''' again.  
  
 
|-
 
|-
 
| 09:35
 
| 09:35
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|Now expand the '''JSP''' option.
+
|Now, expand the '''JSP''' option.
  
 
|-
 
|-
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|-
 
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| 10:01
 
| 10:01
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|the '''Class''' as '''org.mypackage.hello.NameHandler'''.
+
|the '''Class''' as "org.mypackage.hello.NameHandler".
  
 
|-
 
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|-
 
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| 10:30
 
| 10:30
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|JavaBeans are reusable software components for Java.  
+
|'''JavaBeans''' are reusable software components for Java.  
  
 
|-
 
|-
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|-
 
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| 11:12
 
| 11:12
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|Here, in the '''jsp:setProperty''' tag that appears, delete the empty '''value''' attribute.
+
|Here, in the '''jsp:setProperty''' tag that appears, delete the empty "value" '''attribute'''  
  
 
|-
 
|-
 
| 11:21
 
| 11:21
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|and set the '''name''' attribute to '''mybean''' and the Property to '''name'''.
+
|and set the '''name''' attribute to "mybean" and the '''Property''' to "name".
  
 
|-
 
|-
 
| 11:30
 
| 11:30
−
|Now, in between the '''h1''' tags, let us change the text to '''Hello''' comma space and a '''exclamation mark'''.
+
|Now, in between the '''h1''' tags, let us change the text to '''Hello''' comma space and an exclamation mark.
  
 
|-
 
|-
 
| 11:40
 
| 11:40
−
|Now, from the Palette manager, select a '''Get Bean property'''  item drag it and drop it after the '''Hello text''' in between the '''h1''' tags.
+
|Now, from the Palette manager, select a '''Get Bean property'''  item. Drag it and drop it after the "Hello" text  in between the '''h1''' tags.
  
 
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|-
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| 11:53
 
| 11:53
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|set the '''Bean Name''' to '''mybean'''
+
|set the '''Bean Name''' to "mybean"
  
 
|-
 
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| 11:57
 
| 11:57
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|and the '''Property Name''' to '''name. '''
+
|and the '''Property Name''' to "name".  
  
 
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| 12:07
 
| 12:07
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|Right-click within the Source Editor again, click on  '''Format''' to tidy the format of your code if required.
+
|Right-click within the Source Editor again. Click on  '''Format''' to tidy the format of your code, if required.
  
 
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| 12:26
 
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|In the '''Projects''' window, right-click the '''HelloWeb''' project node and choose the '''Run''' option.
+
|In the '''Projects''' window, right-click the "HelloWeb" project node and choose the '''Run''' option.
  
 
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|13:02
 
|13:02
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|To view this process, you can open the output window from the '''Window''' menu and select the '''Output''' option.
+
|To view these processes, you can open the output window from the '''Window''' menu and select the '''Output''' option.
  
 
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|The '''index.jsp''' page opens in your default browser.
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|The 'index.jsp' page opens in your default browser.
  
 
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| 13:27
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|Here it is, it opens in your default browser.
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|Here it is! It opens in your default browser.
  
 
|-
 
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| 13:32
 
| 13:32
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|Note that the browser window may sometime open before the IDE displays the server output.
+
|Note that the browser window may sometimes open before the IDE displays the server output.
  
 
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| 13:38
 
| 13:38
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| Now, let us enter the name in the text-box in the browser.  
+
| Now, let us enter the name in the text-box, in the browser.  
  
 
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| 13:46
 
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|The '''response.jsp''' page displays, providing you with a simple greeting.  
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|The 'response.jsp' page displays, providing you with a simple greeting.  
  
 
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|Now to the assignment part-
+
|Now, to the assignment part-
  
 
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| 13:56
 
| 13:56
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|As an extension to the web-application project, insert two more '''text field'''s, that is, totally three input text fields in your application.
+
|As an extension to the web-application project, insert two more '''text field'''s, that is, totally three input '''text field'''s in your application.
  
 
|-
 
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| 14:06
 
| 14:06
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|Use the '''JavaBeans''' component to set the bean property and
+
|Use the '''JavaBeans''' component to set the '''bean property''' and
  
 
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|Watch the video available at the link shown on the screen.  
+
|Watch the video available at the '''link''' shown on the screen.  
  
 
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| 15:05
 
| 15:05
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|* Gives certificates to those who pass an online test.  
+
|Gives certificates to those who pass an online test.  
  
 
|-
 
|-
 
| 15:09
 
| 15:09
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|For more details, please write to:
+
|For more details, please write to:'''contact@spoken-tutorial.org'''
−
contact@spoken-tutorial.org
+
  
 
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| 15:21
 
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|It is Supported by the National Mission on education through ICT, MHRD, Government  of India.
+
|It is supported by the National Mission on education through ICT, MHRD, Government  of India.
  
 
|-
 
|-
 
| 15:28
 
| 15:28
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|More information on this mission is available at:
+
|More information on this mission is available at:'''spoken-tutorial.org/NMEICT-Intro'''.
−
spoken-tutorial.org/NMEICT-Intro.
+
  
 
|-
 
|-

Latest revision as of 12:48, 10 March 2017

Time Narration
00:01 Hi everybody.Welcome to the tutorial on introduction to Developing Web Applications on the Netbeans IDE.
00:08 We assume that you have the basic working knowledge of Netbeans.
00:12 If not, please visit the Spoken Tutorial website for relevant tutorials on Netbeans.
00:19 Having viewed the first tutorial, you would already be familiar
00:22 with the installation and interface of Netbeans.
00:25 The previous tutorial also teaches you how to create a new project.
00:29 For this demonstration, I am using the Linux Operating System Ubuntu version 11.04 and Netbeans IDE version 7.1.1.
00:40 This tutorial will take you through the basics of using Netbeans to develop web applications.
00:45 We will see - Setting up a web-application project
00:49 Creating and editing web-applications source files
00:52 Creating a java package and a java source file
00:56 Generating the Getter and Setter methods
00:59 Editing the default Java Server Pages file
01:02 Creating a JavaServer pages file and
01:05 finally running our web-application project.
01:08 To follow this tutorial, you will need: * the Netbeans IDE
01:13 The Java Development Kit (JDK) version 6
01:17 The GlassFish Server Open Source Edition.
01:20 All the above can be downloaded in a single bundle from the link shown on the screen.
01:26 This tutorial demonstrates how to create a simple web application,
01:30 deploy it to a server,
01:32 and view its presentation in a browser.
01:35 The application employs (JSP) Java Server Pages, to ask you, to input your name.
01:42 It then uses JavaBeans component to persist the name during the HTTP session
01:48 and then retrieves the output on a second JSP page.
01:51 Let us now move to Netbeans and create our web-application project.
01:58 From the File menu, choose New Project.
02:01 Under Categories, select Java Web.
02:04 Under Projects, select Web Application and click Next.
02:09 Give your project a name. I will name my project as "HelloWeb".
02:15 Specify the Project Location to any directory on your computer.
02:20 Click Next.
02:22 The Server and Settings panel opens.
02:25 Select the version of Java you want to use with your application.
02:29 And, select the server, you want to deploy your application to.
02:34 Click Next.
02:36 In the Frameworks panel,
02:38 click Finish to create the project.
02:41 The IDE creates the HelloWeb project folder.
02:46 This folder contains all of your sources and project metadata.
02:51 The welcome page- index.jsp, opens in the Source Editor in the main window.
02:57 You can view the project's file structure in the Files window on the left, here,
03:05 and it's logical structure in the Projects window.
03:10 Creating and editing source files is the most important function that the IDE serves.
03:15 Now in the Projects window, expand the Source Packages node.
03:20 Note that the Source Packages node contains only an empty "default package" node.
03.25 Right-click on the Source Packages and choose New > Java Class.
03:32 Give your class a name. I will name the class as "NameHandler"
03:40 and in the Package combo-box, let me type: "org.mypackage.hello"
03:54 and click Finish.
03:57 The NameHandler.java file opens in the Source editor.
04:01 Now, let's declare a String variable directly below the class declaration.
04:07 I will declare a string variable 'String name' and
04:12 I will also add a constructor public NameHandler() to the class.
04:23 Now, let me also add name = null; within the constructor.
04:30 Let us next generate the Getter and Setter Methods.
04:33 Right-click the name field in the Source Editor, choose Refactor and Encapsulate Fields from the contextual menu.
04:46 Refactoring is a disciplined technique for improving the structure of the existing code, without changing the observable behavior.
04:56 In short, you can change the structure of the code without changing the behavior.
05:01 With Refactoring, you can easily move fields, methods or classes around, without breaking things.
05:08 Let's move back to the IDE.
05:11 The Encapsulate Fields dialog-box opens, listing the name field.
05:16 Notice that the Fields Visibility is set to "private"
05:20 and the Accessors Visibility is set to "public", by default,
05:24 indicating that the access modifier for the class variables will be specified as private
05:30 whereas the getter and setter methods will be generated with 'public' modifiers respectively.
05:36 Click on Refactor.
05:39 The Getter and Setter methods are generated for the name field.
05:46 The modifier for the class variable is set to "private" whereas the getter and setter methods are generated with "public" modifier.
05:56 Your java class should finally look like this.
05:59 Let us next edit the Default JavaServer Pages File.
06:04 Let us refocus the 'index.jsp' file by clicking its tab, displayed at the top of the Source editor.
06:11 Now, let us open the Palette manager by going to the Tools menu > Palette and click on HTML/JSP code clips.
06:21 The Palette manager opens.
06:26 In the palette manager, expand the HTML Forms option.
06:31 Select the Form item.
06:34 Drag it and drop it to a point after the h1 tags, in your Source Editor.
06:42 The Insert Form dialog-box opens.
06:45 Let us specify the values as being shown on the screen:
06:49 the Action as "response.jsp",
06:54 the Method as "GET".
06:56 And, let's give our form a name as "Name Input Form".
07:04 Click OK.
07:07 An HTML form is added to the 'index.jsp' file.
07:13 Now, from the Palette manager, select a Text Input item, drag it and drop it to a point just before the closing form tags.
07:25 In the Insert Text Input dialog-box, specify the Name as "name".
07:32 Leave the Type at text
07:34 and click on OK.
07:36 A HTML input tag is now added between the form tags.
07:41 Let us delete the empty 'value' attribute from the input tag.
07:49 Now, from the palette, select the Button item.
07:53 Drag it and drop it to the point, before the closing form tag.
07:58 Specify the Label as "OK",
08:00 the Type as "submit"
08:03 and click on OK again.
08:05 An HTML button is now added to a form tags.
08:12 Infront of the first input tag, let us enter the text "Enter your name".
08:22 And, let us change the default text between the h1 tags.
08:28 We will change the text to "Entry form".
08:34 Now, right-click. Let me close the palette manager, for now.
08:38 Right-click within your Source Editor.
08:41 Select the Format option to tidy the format of your code.
08:46 Your 'index.jsp' file should now look like this.
08:49 Let us next create a JavaServer Pages file.
08:53 In the Projects window, right-click on the HelloWeb project node, choose New > JSP.
09:01 The New JSP file wizard opens.
09:05 Name the file as "response" and click on Finish.
09:14 Notice that a 'response.jsp' file node displays in the Projects window, beneath the index.jsp file
09:23 and the new file opens in the Source Editor.
09:26 Open the Palette manager again.
09:35 Now, expand the JSP option.
09:39 Select a Use Bean item, drag it and drop it to a point just below the body tag.
09:53 The Insert Use Bean dialog opens.
09:56 Specify the values as-
09:58 the ID as mybean,
10:01 the Class as "org.mypackage.hello.NameHandler".
10:13 Set the Scope as session
10:15 and click on OK.
10:18 Notice that a jsp:useBean tag is added beneath the body tag.
10:30 JavaBeans are reusable software components for Java.
10:34 They are used to encapsulate many objects into a single object
10:38 so that they can be passed around as a single bean object instead of multiple individual objects.
10:46 Now, from the Palette manager, select a Set Bean property item, drag it and drop it to a point just before the h1 tags
11:03 and click on OK.
11:12 Here, in the jsp:setProperty tag that appears, delete the empty "value" attribute
11:21 and set the name attribute to "mybean" and the Property to "name".
11:30 Now, in between the h1 tags, let us change the text to Hello comma space and an exclamation mark.
11:40 Now, from the Palette manager, select a Get Bean property item. Drag it and drop it after the "Hello" text in between the h1 tags.
11:51 In the Get Bean Property item,
11:53 set the Bean Name to "mybean"
11:57 and the Property Name to "name".
11:59 Click on OK.
12:01 Notice that jsp:getProperty tag is now added between the h1 tags.
12:07 Right-click within the Source Editor again. Click on Format to tidy the format of your code, if required.
12:16 The next step is to run our Web Application Project.
12:20 Let me close the Palette manager.
12:26 In the Projects window, right-click the "HelloWeb" project node and choose the Run option.
12:32 You can also click the Run option from the toolbar or press F6 key on your keyboard to run your Project.
12:41 I will select the button on the toolbar to run my Project.
12:44 When you run a Web application, the IDE builds and compiles the application code,
12:53 launches the server and deploys the application to the server
12:58 and finally displays the application in a browser window.
13:02 To view these processes, you can open the output window from the Window menu and select the Output option.
13:10 You can see that your application has been built successfully.
13:17 The 'index.jsp' page opens in your default browser.
13:23 Let me run the project again.
13:27 Here it is! It opens in your default browser.
13:32 Note that the browser window may sometimes open before the IDE displays the server output.
13:38 Now, let us enter the name in the text-box, in the browser.
13:42 For e.g. Ubuntu and click on OK.
13:46 The 'response.jsp' page displays, providing you with a simple greeting.
13:52 Now, to the assignment part-
13:56 As an extension to the web-application project, insert two more text fields, that is, totally three input text fields in your application.
14:06 Use the JavaBeans component to set the bean property and
14:09 view its presentation in the browser.
14:12 And finally, retrieve the output on the second JSP page.
14:17 I have already constructed my assignment.
14:21 Let me open my assignment and run it in the IDE.
14:30 I am presented with 3 input text fields.
14:35 Let me enter the details and click on OK.
14:42 I should be presented with an output like this.
14:47 Watch the video available at the link shown on the screen.
14:51 It summarizes the Spoken Tutorial project.
14:54 If you do not have good bandwidth, you can download and watch the videos.
14:59 The Spoken Tutorial project team: * conducts workshops using Spoken Tutorials.
15:05 Gives certificates to those who pass an online test.
15:09 For more details, please write to:contact@spoken-tutorial.org
15:16 Spoken Tutorial project is a part of the Talk to a Teacher project.
15:21 It is supported by the National Mission on education through ICT, MHRD, Government of India.
15:28 More information on this mission is available at:spoken-tutorial.org/NMEICT-Intro.
15:40 This tutorial has been contributed by IT for Change.
15:43 Thank you for joining us.

Contributors and Content Editors

PoojaMoolya, Pratik kamble, Sandhya.np14

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