Adnan Siddiqi : Java

Java apps to integrate with Adobe products

kadnan — Sun, 27 Jan 2008 11:54:00 GMT

It seems that Sun is pretty much serious to give a solid response to Microsoft's Silverlight . From register : Sun Microsystems is working on interoperability between design tools from Adobe Systems and its upcoming JavaFX tools for application developers...(read more)

Professors Slam Java As "Damaging" To Students

kadnan — Tue, 08 Jan 2008 17:03:00 GMT

Let us propose the following principle: The irresistible beauty of programming consists in the reduction of complex formal processes to a very small set of primitive operations. Java, instead of exposing this beauty, encourages the programmer to approach...(read more)

Generics in Java- How generic they are

kadnan — Mon, 16 Apr 2007 20:07:00 GMT

Frankly speaking I have not tried Generics yet in Java which were introduced in Java5 but after reading comments on Slashdot, it seems that they are not as generic like C++ templates. If you have tried Generics in C++ or C# or even Java then don't hesitate to share your experience.

Midp 3.0 in town

kadnan — Sun, 04 Mar 2007 08:23:18 GMT

The latest version of Mobil Information Device Profile(MIDP) sounds promising and provides lots of new features. One of the feature which I was told is running background processes. For details visit Forum Nokia where Mr.Nair discussing about it.

What's new in Java APIs

kadnan — Sun, 04 Mar 2007 08:19:47 GMT

Java Community Process is responsible to release new APIs for different flavors of Java. If you are intrested to know what's new available for you, just make a visit to Final Release of different APIs . Some of the APIs which I found intresting are:

Technorati tags: Java, Sun, APIs, mobile, web, desktop

Evil XML

kadnan — Mon, 20 Feb 2006 07:58:00 GMT

geez,it took 3 days to understand the real issue.OK,let me come to the point.

I had been trying to generate XML document(with xml content type) in JSP and i kept getting following error:

xml declaration not at start of external entity

this error generally comes if there is an empty line on the top of XML document.What actually i was doing is given below:

<%@ page contentType="text/xml;"%>

<%
String strXML="";
//declaration
strXML="<?xml version=\"1.0\" encoding=\"utf-8\"?>";
xml code goes here
out.println(strXML)
%>

if you parse the url,you will get error in FF or any xml parser which i mentioned above.The best technique to resolve the issue is to write xml declaration on top of page,restructured code is given below:

<?xml version="1.0" encoding="utf-8"?>//MUST be first line on your script file page
<%@ page contentType="text/xml;"%> //Note this line should be mentioned to get xml output

<%
String strXML="";
rest of xml Code
%>

PHP is fine as it take cares of itself for declaration

Checking variable existance in JSP-isset() equivalent

kadnan — Thu, 15 Sep 2005 05:39:00 GMT

This is my first post related with java technology,all because i have been using java in an official project.

In php,i am used to use isset() function to check the existance of a variable,i needed similar funtionality in java/jsp,so i asked on java forum about this problem

Parsad gave a classic solution for this problem,Reflection.

boolean fieldExists = false;
try{
   Field f = this.getClass().getField("variableName");
   fieldExists = true;
}catch(NoSuchFieldException nsfe){
   //log this and ignore.
}catch (SecurityException exp){         
   //log this and ignore.
}
if(fieldExists){
   //process
}