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	<title>javatr.net &#187; Development</title>
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		<title>Eclipse “Import cannot be resolved” error</title>
		<link>http://www.javatr.net/2011/08/eclipse-%e2%80%9cimport-cannot-be-resolved%e2%80%9d-error/</link>
		<comments>http://www.javatr.net/2011/08/eclipse-%e2%80%9cimport-cannot-be-resolved%e2%80%9d-error/#comments</comments>
		<pubDate>Thu, 18 Aug 2011 07:50:28 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Development]]></category>
		<category><![CDATA[Quick Tips]]></category>

		<guid isPermaLink="false">http://www.javatr.net/?p=144</guid>
		<description><![CDATA[Recently I kept hitting an issue of Eclipse not recognising my  imports (even though they were there). I was always getting the message:
1import ClassName cannot be resolved
.
Where ClassName was my imported class. I’m using the MyEclipse   Workbench 5.5.1 on Eclipse 3.2. Here are a few tips on how you can fix  [...]]]></description>
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		<title>What is the difference between Struts 2 FilterDispatcher and StrutsPrepareAndExecuteFilter ?</title>
		<link>http://www.javatr.net/2011/04/what-is-the-difference-between-struts-2-filterdispatcher-and-strutsprepareandexecutefilter/</link>
		<comments>http://www.javatr.net/2011/04/what-is-the-difference-between-struts-2-filterdispatcher-and-strutsprepareandexecutefilter/#comments</comments>
		<pubDate>Mon, 25 Apr 2011 07:20:46 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Struts 2]]></category>
		<category><![CDATA[web development]]></category>

		<guid isPermaLink="false">http://www.javatr.net/?p=133</guid>
		<description><![CDATA[What is the difference between Struts 2 FilterDispatcher and StrutsPrepareAndExecuteFilter ?
In some tutorials, the declaration of Struts 2 in web.xml is through FilterDispatcher:
&#8230;
&#60;filter&#62;
&#60;filter-name&#62;struts2&#60;/filter-name&#62;
&#60;filter-class&#62;org.apache.struts2.dispatcher.FilterDispatcher&#60;/filter-class&#62;
&#60;/filter&#62;
&#60;filter-mapping&#62;
&#60;filter-name&#62;struts2&#60;/filter-name&#62;
&#60;url-pattern&#62;/*&#60;/url-pattern&#62;
&#60;/filter-mapping&#62;
&#8230;
And some tutorials are using StrustPrepareAndExecuteFilter:
&#8230;
&#60;filter&#62;
&#60;filter-name&#62;struts2&#60;/filter-name&#62;
&#60;filter-class&#62;
org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter
&#60;/filter-class&#62;
&#60;/filter&#62;
&#60;filter-mapping&#62;
&#60;filter-name&#62;struts2&#60;/filter-name&#62;
&#60;url-pattern&#62;/*&#60;/url-pattern&#62;
&#60;/filter-mapping&#62;
&#8230;
As a beginner you could ask this question as you go through the tutorials: What is the difference between Struts 2 FilterDispatcher and StrutsPrepareAndExecuteFilter ?
The asnwer is simple: [...]]]></description>
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		<item>
		<title>RMI (Remote Method Invocation)</title>
		<link>http://www.javatr.net/2011/04/rmi-remote-method-invocation/</link>
		<comments>http://www.javatr.net/2011/04/rmi-remote-method-invocation/#comments</comments>
		<pubDate>Wed, 20 Apr 2011 15:35:33 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Java]]></category>
		<category><![CDATA[distributed objects]]></category>
		<category><![CDATA[java]]></category>
		<category><![CDATA[rmi]]></category>

		<guid isPermaLink="false">http://www.javatr.net/?p=127</guid>
		<description><![CDATA[Before talking about RMI it is better to mention the general concept named CORBA (Common Object Request Broker Architecture),which is an RPC technology and enables separate applications written in different programming languages and running in different computers to work each other like a single application or set of services. (source: wikipedia)

The corresponding technology in Java world called RMI, introduced in JDK 1.1, provides interaction between applications which are running in separate JVMs, possibly remote ones. It is easy to use but very powerfull and composed of two separate applications, a server and a client and can be basically defined as an object oriented RPC mechanism.  There are three differences between CORBA and RMI:

    CORBA is a language independant standart.
    CORBA includes many other technologies in its standart and so is complex.
    There is no such concept “object request broker” in RMI.

The motivation of RMI design was to enable developers to write distributed Java applications ]]></description>
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		<title>File Upload and Image size verification in JSP</title>
		<link>http://www.javatr.net/2010/04/file-upload-and-image-size-verification-in-jsp/</link>
		<comments>http://www.javatr.net/2010/04/file-upload-and-image-size-verification-in-jsp/#comments</comments>
		<pubDate>Sat, 17 Apr 2010 23:33:04 +0000</pubDate>
		<dc:creator>admin</dc:creator>
				<category><![CDATA[Development]]></category>
		<category><![CDATA[JSP & Servlets]]></category>
		<category><![CDATA[file upload]]></category>
		<category><![CDATA[jsp]]></category>

		<guid isPermaLink="false">http://www.javatr.net/?p=71</guid>
		<description><![CDATA[File uploading is a very common task in web applications and it is frequently necessary to upload a file from client to server. In HTML forms the input type “file” allows  the visitor browse the local file system to select the file. When the file is selected it is sent to server as a part of a POST request. During this there are two mandatory restrictions applied to the form with input type file:]]></description>
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