some old little IRC client

IRCClient.java

/*
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package communication;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.net.Socket;
import java.net.UnknownHostException;
import java.text.SimpleDateFormat;
import java.util.Date;

/**
 *
 * @author rEaCH
 */
public class IRCClient {
    private final BufferedWriter out;
    private final BufferedReader in;

    private String channel, host;
    private final Socket server;

    public IRCClient(String host, int port) {
        this.host = host;

        try {
            server = new Socket(host, port);
        } catch (UnknownHostException ex) {
        } catch (IOException ex) {
        }
        try {
            out = new BufferedWriter(new OutputStreamWriter(server.getOutputStream()));
            in = new BufferedReader(new InputStreamReader(server.getInputStream()));
        } catch (IOException ex) {
            ex.printStackTrace();
        }
    }

    public void connect(String myNick) {
        try {
            writeMsg("USER", myNick + " host irc " + myNick);
            writeMsg("NICK", myNick);
            String line;
            while ((line = in.readLine()) != null) {
                if (line.indexOf("004") >= 0) {
                    break;
                }
                parsePing(line);
            }
        } catch (IOException ex) {
            ex.printStackTrace();
        }
    }

    public void disconnect() {
        try {
            server.close();
        } catch (IOException ex) {
        }
    }

    private void writeMsg(String cmd, String msg) {
        writeIrc(cmd + " " + msg + "\r\n");
    }

    public void joinChannel(String channel) {
        String this.channel = channel;
        writeMsg("JOIN", channel + " blubber");
    }

    public void sendPong() {
        writeIrc("PONG " + host);
    }

    private void writeIrc(String msg) {
        try {
            out.write(msg);
            out.flush();
        } catch (IOException ex) {
        }
    }

    public void writePrivMsg(String msg) {
        writeMsg("PRIVMSG " + channel, ":" + msg);
    }

    public String recvMsg() throws IOException {
        String line = in.readLine();
        if (line != null) {
            parsePing(line);
        } else {
            line = "";
        }

        return line;
    }

    private void parsePing(String line) {
        if (line.startsWith("PING ")) {
            writeMsg("PONG", line.substring(6));
        }
    }
}