Extended (parser)

import org.jsoup.*;
import java.io.*;
import org.jsoup.nodes.*;
import java.net.*;

public class Analyser implements Runnable
{
    public boolean connected=false;
    public String full_line;
    public String command;
    public Document con;
    public String website;
    public static int i;

    public static void main(String args[]) throws IOException,InterruptedException
    {
        Analyser obj=new Analyser();
        obj.core();
    }

    public void core() throws IOException
    {
        BufferedReader scan=new BufferedReader(new InputStreamReader(System.in));
        Thread t=new Thread(new Analyser());

        t.start();
        connect();
        do
        {
            command=scan.readLine();
            switches();
        }
        while(!command.equals(":quit"));
    }

    public void connect() throws IOException
    {
        System.out.print("$");
        BufferedReader get=new BufferedReader(new InputStreamReader(System.in));

        do
        {
         full_line=get.readLine();

         if(full_line.contains(":connect"))
         {
             int length=full_line.length();
             website=full_line.substring(10,length);
             con=Jsoup.connect("http://"+website).get();
             connected=true;
             System.out.println("connected");
             return;
         }
         else
         {
             System.out.println("Wrong syntax.Use command [:connect websitename].");
         }
        }
        while(!full_line.contains(":connect"));
    }

    public void switches() throws IOException
    {
        if(connected)
        {
            if(command.contains(":get"))
            {
                if(command.contains("-node"))
                {
                    System.out.println(con.nodeName());
                }

                if(command.contains("-tag"))
                {
                    System.out.println(con.tagName());
                }

                if(command.contains("-source"))
                {
                    System.out.println(con.html());
                }

                if(command.contains("-txt"))
                {
                    System.out.println(con.text());
                }
                if(command.contains("-hash"))
                {
                    System.out.println(con.hashCode());
                }
                if(command.contains("-title"))
                {
                    System.out.println(con.title());
                }
                if(command.contains("-ip"))
                {
                    InetAddress ip=InetAddress.getByName(website);
                    System.out.println(ip);
                }
                if(command.contains("-session"))
                {
                    System.out.println(Analyser.i+" seconds");
                }
                if(command.contains("jvs"))
                {
                    String src=con.html();

                    if(src.contains("<script>"))
                    {
                        System.out.println("Website uses javascript");
                    }
                    else
                    {
                        System.out.println("Website does not use javascript");
                    }
                }
            }
            if(command.equals(":reload"))
            {
                System.out.println("disconnected");
                connect();
                return;
            }
            if(command.equals("-cls"))
            {
                for(int c=0;c<=100;c++)
                {
                    System.out.println();
                }
            }
        }
    }

    public void run()
    {
        try
        {
            for(i=0;i>=0;i++)
            {
                Thread.sleep(1000);
            }
        }
        catch(InterruptedException e)
        {
            System.out.println(e.getMessage()+" -thread interrupted");
        }
     }
}