How to validate complete html using java -

i want validate html tags , contents using java. validation should make sure html tags closed properly. there no mistake in tag creation area. eg

<div id="dividvalue'></div> 

or

<span id\="spanidval" ,></span> 

i need validate such kind of things. while googling got regular expression this

<(\"[^\"]*\"|'[^']*'|[^'\">])*> 

but wont validate htmls closed or not? how can add this.

my sample code attached below. please me.

package com.test;  import java.util.regex.matcher; import java.util.regex.pattern;  public class htmlvalidator {      private static pattern pattern;     private static matcher matcher;      private static final string html_tag_pattern = "<(\"[^\"]*\"|'[^']*'|[^'\">])*>";      public void htmltagvalidator(){         pattern = pattern.compile(html_tag_pattern);     }      public static boolean validate(final string tag){                   matcher = pattern.matcher(tag);           return matcher.matches();      }      /**      * @param args      */     public static void main(string[] args) {         // todo auto-generated method stub          string htmlstr = "<div> <p id=/'bb'>this first paragraph. first paragraph. </p> <span id='spanid'>yes spab</span></div>";          system.out.println("htmlstr :- "+htmlstr);          validate(htmlstr);      }  } 

if need parse html using pure java, there many open source options available. however, recommend instead using w3c validate syntax definition more date on correct usages. luck project.