public void onJoin(String channel, String sender, String login, String hostname) {
if (sender.equalsIgnoreCase(getNick())) {
    sendMessage(channel, "Sup Guys");
}  
else if (sender.equalsIgnoreCase("Vesuvius27")) {
    sendAction(channel, "praises his creator");
}
else{
    sendMessage(channel, "Welcome " + sender + " to GUILDS IRC");
}
}