xml parsers Java Example

 import javax.xml.parsers.*; 
 import org.w3c.dom.*; 
 import java.io.*; 
 public class JavaExampleParser 
    { 
        static String TxtToDisp[] = new String[1000]; 
        static int TxtLines = 0; 
        public static void parseDocument(String FileNme) 
         { 
          try 
             { 
                DocumentBuilderFactory DocBf =DocumentBuilderFactory.newInstance(); 
                DocumentBuilder DocBldr = null; 
                DocBldr = DocBf.newDocumentBuilder(); 
                Document Doc = null; 
                Doc = DocBldr.parse(new File(FileNme)); 
                createDisplay(Doc,""); 
             } 
               catch (Exception e1) 
             { 
                    e1.printStackTrace(System.err); 
                 } 
         } 
               public static void createDisplay(Node Nd,String Indnt) 
                  { 
                     if (Nd==null) 
                       { 
                          return; 
                       } 
                          int Typ= Nd.getNodeType(); 
                          switch(Typ) 
                             { 
                               case Node.DOCUMENT_NODE: 
                           { 
                                      TxtToDisp[TxtLines] = Indnt; 
                                      TxtToDisp[TxtLines] += "<?xml version=\"1.0\" encoding=\"" + "UTF-8" + "\"?>"; 
                                      TxtLines++; 
                                      createDisplay(((Document)Nd).getDocumentElement(), ""); 
                                      break; 
                                   } 
                                     case Node.ELEMENT_NODE: 
                                { 
                                           TxtToDisp[TxtLines] = Indnt; 
                                           TxtToDisp[TxtLines] += "<"; 
                                           TxtToDisp[TxtLines] += Nd.getNodeName(); 
                                           int NmbrAttrbute = 0; 
                                           if(Nd.getAttributes() != null) NmbrAttrbute= Nd.getAttributes().getLength(); 
                                           for (int loopIndx = 0; loopIndx <NmbrAttrbute;loopIndx++) 
                                       { 
                                                  Attr Atrbute = (Attr)Nd.getAttributes().item(loopIndx); 
                                                  TxtToDisp[TxtLines] += " "; 
                                                  TxtToDisp[TxtLines] += Atrbute.getNodeName(); 
                                                  TxtToDisp[TxtLines] += "=\""; 
                                                  TxtToDisp[TxtLines] += Atrbute.getNodeValue(); 
                                                  TxtToDisp[TxtLines] += "\""; 
                                               } 
                                                  TxtToDisp[TxtLines] += ">"; 
                                                  TxtLines++; 
                                                  NodeList ChldNds = Nd.getChildNodes(); 
                                                  if (ChldNds != null) 
                                        { 
                                                       int NmbrChldrn = ChldNds.getLength(); 
                                                       Indnt += "    "; 
                                                       for (int loopIndx = 0; loopIndx < NmbrChldrn;loopIndx++ ) 
                                                        { 
                                                          createDisplay(ChldNds.item(loopIndx),Indnt); 
                                                        } 
                                                    } 
                                                        break; 
                                         } 
                                                 case Node.TEXT_NODE: 
                                         { 
                                                         TxtToDisp[TxtLines] = Indnt; 
                                                         String NdTxt = Nd.getNodeValue().trim(); 
                                                         if(NdTxt.indexOf("\n") < 0 && NdTxt.length() > 0) 
                                              { 
                                                              TxtToDisp[TxtLines] += NdTxt; 
                                                              TxtLines++; 
                                                          } 
                                                              break; 
                                                     } 
                                                        case Node.PROCESSING_INSTRUCTION_NODE: 
                                               { 
                                                                TxtToDisp[TxtLines] = Indnt; 
                                                                TxtToDisp[TxtLines] += "<?"; 
                                                                TxtToDisp[TxtLines] += Nd.getNodeName(); 
                                                                String PITxt = Nd.getNodeValue(); 
                                                                if (PITxt != null && PITxt.length() > 0) 
                                                  { 
                                                                     TxtToDisp[TxtLines] += PITxt; 
                                                                  } 
                                                                     TxtToDisp[TxtLines] += "?>"; 
                                                                     TxtLines++; 
                                                                     break; 
                                                           }    
                         } 
                                 if (Typ == Node.ELEMENT_NODE) 
                            { 
                                        TxtToDisp[TxtLines] =Indnt.substring(0,Indnt.length()-4); 
                                        TxtToDisp[TxtLines] += "</"; 
                                        TxtToDisp[TxtLines] += Nd.getNodeName(); 
                                        TxtToDisp[TxtLines] += ">"; 
                                        TxtLines++; 
                                        Indnt += "    "; 
                                   } 
                  }   
                         public static void main(String aa[]) 
                                   { 
                                       parseDocument(aa[0]); 
                                       for(int loopIndx = 0; loopIndx < TxtLines; loopIndx++) 
                                  { 
                                              System.out.println(TxtToDisp[loopIndx]); 
                                          } 
                                  } 
   }