Generate java file from XML file without any API -

how can generate java file, means generate name of classes methods attributes, without using api xml

my xml file : source

<class name="person">  <attribut type="int">age</attribut> <attribut type="string">name</attribut> </class> 

to java file:

 public class person {     int age;     string name;  } 

your appreciated

thank you

if still want own. might have on simplified example.

warnings first:

• it lacks proper exception handling
• it build work proposed xml example

the sample code

import java.io.fileinputstream; import java.io.ioexception; import javax.xml.stream.factoryconfigurationerror; import javax.xml.stream.xmlinputfactory; import javax.xml.stream.xmlstreamconstants; import javax.xml.stream.xmlstreamexception; import javax.xml.stream.xmlstreamreader;  public class xmlstreamreaderdemo {      public static void main(string[] args) throws exception {         string xmlfilename = "source.xml";         stringbuilder javasource = transform(xmlfilename);         system.out.println(javasource);     }      static stringbuilder transform(string xmlfilename) throws             factoryconfigurationerror, ioexception, xmlstreamexception {         xmlinputfactory factory = xmlinputfactory.newinstance();         xmlstreamreader parser = null;         stringbuilder source = new stringbuilder();         try (fileinputstream inputstream = new fileinputstream(xmlfilename)) {             parser = factory.createxmlstreamreader(inputstream);             while (parser.hasnext()) {                 switch (parser.geteventtype()) {                     case xmlstreamconstants.start_element:                         processstartelement(parser, source);                         break;                     case xmlstreamconstants.characters:                         processcharacters(parser, source);                         break;                      case xmlstreamconstants.end_element:                         processendelement(parser, source);                         break;                     default:                         break;                 }                 parser.next();             }         } {             if (parser != null) {                 parser.close();             }         }         return source;     }      static void processendelement(xmlstreamreader reader, stringbuilder sb) {         string element = reader.getlocalname();         if ("class".equals(element)) {             sb.append("}");         } else if ("attribut".equals(element)) {             sb.append(";\n");         }     }      static void processcharacters(xmlstreamreader reader, stringbuilder sb) {         if (!reader.iswhitespace()) {             sb.append(" ").append(reader.gettext());         }     }      static void processstartelement(xmlstreamreader reader, stringbuilder sb) {         string element = reader.getlocalname();         if ("class".equals(element)) {             sb.append("public class ")                     .append(reader.getattributevalue(0))                     .append(" {\n");         } else if ("attribut".equals(element)) {             sb.append("    ")                     .append(reader.getattributevalue(0));         }     } } 

assuming source.xml contains

<class name="person"> <attribut type="int">age</attribut> <attribut type="string">name</attribut> </class> 

the code prints

public class person {     int age;     string name; } 

the "only" thing left do: implement missing parts. if still contains "too much" xml api ... ... write own parser. ;-)