got the solution myself
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.URL;
import java.net.URLConnection;
import java.util.ArrayList;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class glass {
public static void main(String []args) throws IOException{
ArrayList<string>good=new ArrayList<string>();
ArrayList<string>bad=new ArrayList<string>();
String a="//Glassdoor url of the company";
URL url=new URL(a);
URLConnection conn=url.openConnection();
BufferedReader br=new BufferedReader(newInputStreamReader(conn.getInputStream()));
String i;
String filename="D:/comment.txt";
String gfile="D:/pros.txt";
String bfile="D:/cons.txt";
File file=new File(filename);
File pro=new File(gfile);
File con=new File(bfile);
if(!file.exists()){
file.createNewFile();
}
if(!pro.exists()){
pro.createNewFile();
}
if(!con.exists()){
con.createNewFile();
}
FileWriter fw=new FileWriter(file);
BufferedWriter bw=new BufferedWriter(fw);
FileWriter fpros=new FileWriter(pro);
BufferedWriter bpros=new BufferedWriter(fpros);
FileWriter fcons=new FileWriter(con);
BufferedWriter bcon=new BufferedWriter(fcons);
while((i=br.readLine())!=null){
bw.write(br.readLine());
}
br.close();
bw.close();
FileReader fr=new FileReader(file);
StringBuffer sb=new StringBuffer();
BufferedReader br1=new BufferedReader(fr);
String input=null;
while((input=br1.readLine())!=null){
sb.append(input);
}
input=sb.toString();
String pros="(.*?)<br />";
String cons="(.*?)<br />";
Pattern pattern=Pattern.compile(pros);
Pattern p1=Pattern.compile(cons);
Matcher m1=pattern.matcher(input);
Matcher m2=p1.matcher(input);
while(m1.find()){
System.out.println(m1.group(2));
}
System.out.println(good.size());
System.out.println("completed");
}
}</string></string></string></string>