How do i fix these errors?

Code:
client.java:82: cannot find symbol
symbol  : variable duelLine
location: class client
                for (int i = 0; i < duelLine.length; i++) {
                                    ^
client.java:84: cannot find symbol
symbol  : variable duelNames
location: class client
                                sendQuest("@red@" + duelNames[i], duelLine[i]);
                                                    ^
client.java:84: cannot find symbol
symbol  : variable duelLine
location: class client
                                sendQuest("@red@" + duelNames[i], duelLine[i]);
                                                                  ^
client.java:86: cannot find symbol
symbol  : variable duelNames
location: class client
                                sendQuest( duelNames[i], duelLine[i]);
                                           ^
client.java:86: cannot find symbol
symbol  : variable duelLine
location: class client
                                sendQuest( duelNames[i], duelLine[i]);
                                                         ^
5 errors

REP++ if helped and no errors.