Requesting help in extracting user comments from a forum ( HTML WEBSITE)

Question

hello experts,
As i m new to java and i got this college project in hand which has to completed in few days i require some expert advise.
Basically what my job is to extract all the user comments from a forum and make a text file.. for example this is one of the website http://www.gsmarena.com where user have posted many reviews and comments about mobile phones . ex : http://www.gsmarena.com/nokia_n97-reviews-2615p2.php .
now looking at source code , all user comment are inside <P class="uopin"> tag under <DIV class="user-thread"> element.
So i want to ask if there is any method in java that can extract all contents from class "uopin" directly ?
i have no problem opening URL connection and reading the webpage but i m not able to extract that specific content . please enlighten me in this regard.
Actually i m searching this forum since last 3 hours trying to find an answer and i found that i have to learn Regex , indexOf() subString() , HTMLEditorKit() etc.
I ma planning to learn them in detail but as i have very less time ( 2 days to be specific) , i want help from you experts to solve this problem. plz guide me with some code snippets .
Thankyou for your advises in advance :)

Answer 1

ok.. sorry for asking that way.
Here is my work till now....
i wrote this code :
import java.io.*;
import java.io.Console;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.URL;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class MyRobot3
     public static void main(String[] args) throws IOException
          BufferedReader in = new BufferedReader(new FileReader("MyRobot3.txt"));
          String inputLine , nextLine,kutta;
        FileOutputStream out; // declare a file output object
        PrintStream p; // declare a print stream object
          out = new FileOutputStream("myfile3.txt");
          p = new PrintStream( out );
             while ((inputLine = in.readLine()) != null)
                         Pattern p1 = Pattern.compile("(<p\\sclass=\"uopin\">)(.*$)" );          
                    //     Pattern p1 = Pattern.compile("(<p\\sclass=\"uopin\">)(.*$\r\n.*$)" , Pattern.MULTILINE | Pattern.UNIX_LINES);    //not working
                    //Pattern p1 = Pattern.compile("(<p\\sclass=\"uopin\">)(.*\\s)" , Pattern.MULTILINE );
                         Matcher m1 = p1.matcher(inputLine);
                         boolean found = false;
                         while (m1.find())
                         p.println(m1.group(2));
}I am testing with a little file MyRobot3.txt which contains
<p class="uopin">Although they didn't announce any winner here. But to me the winner is <br/>
N900. Then opera is in second position. (overall averare result)</p>And i am getting output in a file : myfile3.txt
Although they didn't announce any winner here. But to me the winner is <br/>which is just the first line , but i need to match that line break also. i m not able to figure it out .please help me fixing this code so that it can match all the text and remove the <br> tag ..