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HTML Parser is the high level syntactical analyzer.
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    How to Use the HTML Parser Libraries
    
  
  
  How to Use the HTML Parser libraries
  Step 1: Java
  You should make sure that a Java development system (JDK) is installed, not
  just a Java runtime (JRE). If you are working in an IDE (Integrated
  Development Environment) this is usually taken care of for you. If you are
  using just a command line, should see help information when you type:
    javac
  
  Java versions greater than 1.2 are supported for the parser, and Java 1.1 for
  the lexer. You can check your version with the command:
    java -version
  
  If you are using Java 5, you may need to specify option "-source 1.3" to avoid
  some warnings.
  Step 2: Setting the CLASSPATH
  To use the HTML Parser you will need to add the htmlparser.jar and htmllexer.jar to the classpath.
  If you are using an IDE, you need to add the htmlparser.jar and htmllexer.jar
  to the list of jars/libraries used by your project.
  NetBeans
  
  Right click on your project in the Projects Window (Ctrl-1) and choose Properties.
  In the Project Properties pane choose the Libraries view.
  Select the Compile tab.
  Click the Add Jar/Folder button.
  Browse to <htmlp_dir>/lib (where where <htmlp_dir> is the
  directory where you unzipped the distribution: xxx/HTMLParserProject-2.0),
  select the htmlparser.jar and htmllexer.jar files and click on OK.
  
  Eclipse
  
  Right click on your project in the Package Explorer Window (Shift-Alt-Q + P) and choose Properties.
  In the Properties pane choose the Java Build Path view.
  Select the Libraries tab.
  Click the Add External Jars button.
  Browse to <htmlp_dir>/lib (where where <htmlp_dir> is the
  directory where you unzipped the distribution: xxx/HTMLParserProject-2.0),
  select the htmlparser.jar and htmllexer.jar files and click on OK.
  
  Command Line
  You can either add the jars to the CLASSPATH environment variable, or specify
  it each time on the command line:
  Windows
  set CLASSPATH=[htmlp_dir]\lib\htmlparser.jar;[htmlp_dir]\lib\htmllexer.jar;%CLASSPATH%
  where [htmlp_dir] is the directory where you unzipped the distribution:
  xxx\HTMLParserProject-2.0, or use:
  javac -classpath=[htmlp_dir]\lib\htmlparser.jar;[htmlp_dir]\lib\htmllexer.jar  MyProgram.java
  Linux
  export CLASSPATH=[htmlp_dir]/lib/htmlparser.jar:[htmlp_dir]/lib/htmllexer.jar:$CLASSPATH
  where [htmlp_dir] is the directory where you unzipped the distribution:
  xxx/HTMLParserProject-2.0, or use
  javac -classpath=[htmlp_dir]/lib/htmlparser.jar:[htmlp_dir]/lib/htmllexer.jar  MyProgram.java
  Step 3: Import Necessary Classes
  Whatever classes you use from the HTML Parser libraries will need to be
  imported by your program. For example, the simplest usage is:
      import org.htmlparser.Parser;
    import org.htmlparser.util.NodeList;
    import org.htmlparser.util.ParserException;
  
    class Test
    {
        public static void main (String[] args)
        {
            try
            {
                Parser parser = new Parser (args[0]);
                NodeList list = parser.parse (null);
                System.out.println (list.toHtml ());
            }
            catch (ParserException pe)
            {
                pe.printStackTrace ();
            }
        }
    }
  
  Note the import statements may also have been written:
      import org.htmlparser.*;
    import org.htmlparser.util.*;
  
  Step 4: Compile & Run
  Within an IDE the compile and execute steps are usually combined.
  NetBeans
  
  From the Run menu select Run Main Project (F6).
  
  Eclipse
  
  From the Run menu select Run... and browse to the Main class and click the Run button.
  
  Command Line
  The above program in a file called Test.java can be compiled and run with the commands:
  Windows
    javac -classpath=[htmlp_dir]\lib\htmlparser.jar;[htmlp_dir]\lib\htmllexer.jar  Test.java
  java -classpath=.;[htmlp_dir]\lib\htmlparser.jar;[htmlp_dir]\lib\htmllexer.jar  Test.java
  
  Linux
    javac -classpath=[htmlp_dir]/lib/htmlparser.jar:[htmlp_dir]/lib/htmllexer.jar  Test.java
  java -classpath=.:[htmlp_dir]/lib/htmlparser.jar:[htmlp_dir]/lib/htmllexer.jar  Test.java