Using XML in Java

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Please tell me how to implement this.

[ravi]

i have no knowledge about this....plz mentioned it.......

[navkesh]

XML is an enabling technology for the virtuous programmer. A basic XML parser does a great deal of work for the programmer, recognizing tokens, translating encoded characters, enforcing rules on XML file structure, checking the validity of some data values, and making calls to application-specific code, where appropriate. In fact, early standardization, combined with a fiercely competitive marketplace, has produced scores of freely available implementations of standard XML parsers in many languages, including C, C++, Tcl, Perl, Python, and, of course, Java.

The java.util.Properties class has build-in functionality to convert properties file into XML file or vice verses.

Example:
Convert properties file into XML file in JAVA

import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.util.Properties;
 
public class PropertiesXMLExample
{
    public static void main(String[] args) throws IOException
    {   
       Properties props = new Properties();
       props.setProperty("email.support", "donot-spam-me@nospam.com");
       OutputStream os = new FileOutputStream("c:/email-configuration.xml");
       props.storeToXML(os, "Support Email","UTF-8");
       System.out.println("Done");
    }
}

The above example will write the properties detail into a XML file “c:/email-configuration.xml“ as:

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<!DOCTYPE properties SYSTEM "http://java.sun.com/dtd/properties.dtd">
   <properties>
      <comment>Support Email</comment>
      <entry key="email.support">donot-spam-me@nospam.com</entry>
   </properties>

[netedge12]

XML could be a all-purpose specification for making custom mark-up languages. Its primary purpose is to assist info systems share structured knowledge, significantly via the net, and it's used each to code documents and to set up knowledge.