Detailed explanation of xml parsing examples by javaDOMParser

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Import java. io. *; import java.net. *; import org. w3c. dom. *; import org. w3c. dom. node. *; import oracle. xml. parser. v2. *;/*** ----------------------------------------------------------------------------------- * Demonstrate how to use DOM. ** @ version 1.0 * @ author Jeffrey M. hunter (jhunter@idevelopment.info) * @ author http://www.idevelopment.info * Optional */public class DOMExample {/** + --------------------------------------------- + * | METHOD: main | * + signature + */static public void main (String [] argv) {try {if (argv. length! = 1) {// must pass in the name of the XML file System. err. println ("Usage: java DOMExample filename"); System. exit (1);} // Get an instance of the parser DOMParser parser = new DOMParser (); // Generate a URL from the filename URL url = createURL (argv [0]); // Set varous parser options; validation on, // warnings shown, error stream set to stderr. parser. setErrorStream (System. err); parser. setValidationMode (true); parser. showWarnings (true); // parse the document parser. parse (url); // Obtain the document XMLDocument doc = parser. getDocument (); // print document elements System. out. print ("The elements are:"); printElements (doc); // print document elements attributes System. out. println ("The attributes of each element are:"); printElementAttributes (doc);} catch (Exception e) {System. out. println (e. toString () ;}/ ** + ------------------------------------------------- + * | METHOD: printElements | * + principal + */static void printElements (Document doc) {NodeList nodelist = doc. getElementsByTagName ("*"); Node node; for (int I = 0; I
 
  
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