Guided research with Java and XML

Hi all,
I'm a last year student and now I have to choose a topic for my Guided Research Project.
My interest in XML and databases pushes me in this direction. However, I still cannot come up with an interesting proposal for the project. At first I considered implementing a "XML <-> databaseSchema" converter, but then I found out that many similar tools already exist. I have background in Java, PHP and mysql which could be useful.
I was wondering if you could give me an idea about a possible topic.
Thank you very much!
Regards,
J

For parsing you can use SAX Parser and for document generation you can use DOM Parser.

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Hi DrClap,
Thanks for the reply. I have JDK 1.4.1_02 installed on my server but the following error keeps coming up when I try to run my example:
Exception in thread "main" java.lang.NoClassDefFoundError: org/w3c/dom/NodeAre there any further packages I need to download in order to run Java with XML? I have read some people install JAXP and XERCES... are these necessary for parsing an XML document or should J2SE 1.4.1 be sufficient?
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Java and XML Doc

I am new to Java and XML, I want to know the steps i should follow to work with XML document using XPATH. also the APIs and Technologies i shoud work. If possible guide me any examples or tutorials for that.

This is the defacto site for xpath stuff for java
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Help with Java to XML

All I need to know is how to bold the tag <CompanyID> </CompanyID> OR the text within it (1001, in given sample).
Here's a sample line of the data.txt file I'm working with:
1001,"Fitzsimmons, Des Marteau, Beale and Nunn",109,"COD","Standard",,109,8/14/1998 8:50:02
Thanks in advance!
public class PracticeExerciseOne {
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        DocumentBuilder domBuild = null;
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        final String COMPANY_ID = "CompanyID";
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        //Regex to be used for each field in the CSV file
        ArrayList<Pattern> patterns = new ArrayList<Pattern>();
        patterns.add(Pattern.compile("[0-9]+,"));
        patterns.add(Pattern.compile("\".+?\","));
        patterns.add(Pattern.compile("[0-9]+,"));
        patterns.add(Pattern.compile("\".+?\","));
        patterns.add(Pattern.compile("\".+?\","));
        patterns.add(Pattern.compile("[^,]*,"));
        patterns.add(Pattern.compile("[0-9]+,"));
        patterns.add(Pattern.compile("[^,]+ [^,]+"));
        //Store element tags in an array - too long to post
        try{
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            domBuild = domFac.newDocumentBuilder();
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            BufferedReader in = new BufferedReader(new FileReader(new File("texts/data.txt")));
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            String tempElement = "";
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                        else{
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                            tempI = 0;
                            tempElement = temp.substring(0);
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                            tempElement = " ";
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em.appendChild(doc.createTextNode(tempElement));
rootElement.appendChild(em);
line = in.readLine();
temp = line;
//Transformer will create a new XML document using the Document we have built
TransformerFactory transformerFactory = TransformerFactory.newInstance();
Transformer transformer = transformerFactory.newTransformer();
transformer.setOutputProperty(OutputKeys.STANDALONE, "yes");
transformer.setOutputProperty(OutputKeys.INDENT, "yes");
DOMSource source = new DOMSource(doc);
StreamResult result = new StreamResult(out);
transformer.transform(source, result);
out.close();
in.close();
catch(Exception e){
System.err.println("Exception: " + e.getMessage());
e.printStackTrace();

maybe this can help You for now and future,
in this site You can download a sample codes publish in this books - java fundamentals and advanced features.,
in 2nd book, is a big chapter about java and xml. Please read this code, i will hope, this can help You.
http://www.horstmann.com/corejava.html (for mod: this is not SPAM)

Can somebody explain to me how java and xml are related?

Hi guys
im new to java and xml.Been reading a lot regarding java and don't seem to have a problem with it...
the problem is the xml part...im doing a simple GUI project using swing(online store) and i have to convert it to xml
I have absolutely NO IDEA why i must convert my java to xml and have no idea how to do that.I been reading on the net that xml is a exten~ markup language and it is better and useful.
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thank you
tomleo

im new to java and xml.Been reading a lot regarding
java and don't seem to have a problem with it...Okay.
the problem is the xml part...im doing a simple GUI
project using swing(online store) and i have to
o convert it to xmlYou have to? So presumably somebody in a position of authority told you that?
I have absolutely NO IDEA why i must convert my java
to xml and have no idea how to do that.I been reading
on the net that xml is a exten~ markup language and
it is better and useful.I have no idea either (besides which, it doesn't make sense). But why ask us? Somebody told you to do that, ask them why.
Sure, XML is useful. But it isn't a programming language so it can't be used as a substitute for Java.
Can somebody explain to me in layman terms
1)how is java and xml related in?They aren't related, except perhaps in that they are both used in computers.
2)why do ppl want to convert java to xml when they
can just stick to javaThey don't.
3)what is actually xml...Start here for numerous definitions:
http://www.google.ca/search?hl=en&lr=&oi=defmore&q=define:XML
4)Do i need a program to create xml like i need
jcreater to create java applicationNo, XML is just text. But then Java code is just text too.
5)How do we actually convert?is there any links that
you guys could tell me?You don't convert Java to XML. My guess is that because you don't know much about Java or XML, you have misinterpreted something that somebody told you.

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Hello chaps,
I need some help with a project I am doing.
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This is the defacto site for xpath stuff for java
http://xml.apache.org/xalan-j/

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Guided research with Java and XML

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