try this

package dpp;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.net.Socket;
import java.net.URL;
import java.util.concurrent.TimeUnit;

public class Bot {

    public static String IRC_SERVER = "", IRC_PASSWORD = "", IRC_USERNAME = "",
            str = "";
    public static int IRC_PORT = 6667;
    public static PrintWriter o;
    public static Socket s;
    public static BufferedReader i;
    public static List activeQueue = new ArrayList();

    public static String SendCommand(String username, String command, int bm, String mode)
            throws IOException, InterruptedException {
        activeQueue.add(username);
        URL oracle = new URL("http://192.168.0.100/bot/osu_ripple.php?k=routine&command=" + command + "&b=" + bm + "&u=" + username + "&m=" + mode);
        BufferedReader in = new BufferedReader(new InputStreamReader(oracle.openStream()));
        String inputLine;
        while ((inputLine = in.readLine()) != null)
            return inputLine;
        in.close();
        activeQueue.remove(username);
        return inputLine;
    }

    public static void main(String[] args) throws IOException, InterruptedException {
        s = new Socket(IRC_SERVER, IRC_PORT);
        i = new BufferedReader(new InputStreamReader(s.getInputStream()));
        o = new PrintWriter(new OutputStreamWriter(s.getOutputStream()));
        o.print("PASS " + IRC_PASSWORD + "\r\n");
        o.print("USER " + IRC_USERNAME + " 0 * :" + IRC_USERNAME + "\r\n" + "NICK " + IRC_USERNAME + "\r\n");
        //o.print("JOIN #bulgarian" + "\r\n");
        o.flush();
        if (s.isConnected())
            System.out.println("Connected!");
        while (s.isConnected()) {
            str = i.readLine();
            //System.out.println(str);
            if (str.startsWith("PING")) {
                o.print("PONG " + str.substring(5) + "\r\n");
                o.flush();
            }
            if (str.charAt(0) != ':')
                continue;
            if (str.split(" ")[1].equals("PRIVMSG")) {
                String USERNAME = str.split("!")[0].substring(1);
                USERNAME = USERNAME.split("\\s+")[0];
                USERNAME = USERNAME.split(":")[0];
                String[] split = str.split("!");
                if (str.split(":")[2].contains("listening") || str.split(":")[2].contains("playing")
                        || str.split(":")[2].contains("watching")) {
                    if (str.contains("http://osu.ppy.sh/b/") || str.contains("https://osu.ppy.sh/b/")) {
                        int bm = Integer.parseInt(str.split("osu.ppy.sh/b/")[1].split(" ")[0]);
                        o.print("PRIVMSG " + USERNAME + " :"
                                + SendCommand(USERNAME, "np", bm, "0")
                                + "\r\n");
                        o.flush();
                    }
                    TimeUnit.SECONDS.sleep(3);
                }
                if (str.split(":")[2].startsWith("!mode")) {
                    String[] split1 = str.split("!mode");
                    if (split1.length > 1 && !split1[1].isEmpty()) {
                        String usr = str.split("!mode ", -1)[1];
                        o.print("PRIVMSG " + USERNAME + " :" + SendCommand(USERNAME, "mode", 0, usr) + "\r\n");
                        o.flush();
                    }
                    TimeUnit.SECONDS.sleep(3);
                } else {
                    if (str.split(":")[2].startsWith("!")) {
                        if (split.length > 1 && !split[1].isEmpty()) {
                            String COMMAND = str.split("!")[1];
                            if (activeQueue.contains(USERNAME)) {
                                // Active Queue
                            } else {
                                o.print("PRIVMSG " + USERNAME + " :" + SendCommand(USERNAME, COMMAND, 0, "") + "\n");
                                o.flush();
                            }
                        }
                    }
                    TimeUnit.SECONDS.sleep(3);
                }
            }
        }
    }
}