getIp Function finding wrong type

Code:

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public String getIP(int channel) {
        return channelServer.get(channel);
    }

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Code:

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C:\Users\Dan\Desktop\Source\src\net\login\LoginServer.java:81: incompatible types
found  : java.util.Map<java.lang.Integer,java.lang.String>
required: java.lang.String
        return channelServer.get(channel);
1 error
BUILD FAILED (total time: 3 seconds)

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What is wrong? If you need any whole files, please post so.

Most likely:

the function channelServer.get() returns a map of Integers to Strings instead of one single String. Because getIP wants to return a String and you are returning an map of Intgers to strings ( channelServer.get() ) it will complain about a mismatch.

I figured it out, I had it so instead of just channel, it needed to find the world as well.

Fixed Function:

Code:

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public String getIP(int world, int channel) {
        return channelServer.get(world).get(channel);
    }

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But now I have another problem, this file is giving errors cause the 2 lines don't include world, only channel. Can you explain what I need to add to the lines?

Code:

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package net.login.handler;

import java.net.InetAddress;
import java.net.UnknownHostException;

import client.MapleClient;
import net.AbstractMaplePacketHandler;
import net.login.LoginServer;
import tools.MaplePacketCreator;
import tools.data.input.SeekableLittleEndianAccessor;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class CharSelectedWithPicHandler extends AbstractMaplePacketHandler {
        private static Logger log = LoggerFactory.getLogger(CharSelectedWithPicHandler.class);
        @Override
        public void handlePacket(SeekableLittleEndianAccessor slea, MapleClient c) {

        String pic = slea.readMapleAsciiString();
                int charId = slea.readInt();
                String macs = slea.readMapleAsciiString();
                c.updateMacs(macs);

                if (c.checkPic(pic)) {

                if (c.hasBannedMac()) {
                        c.getSession().close(true);
                        return;
                }
                try {
                        if (c.getIdleTask() != null) {
                                c.getIdleTask().cancel(true);
                        }
                        //c.getSession().write(MaplePacketCreator.getServerIP(InetAddress.getByName("127.0.0.1"), 7575, charId));
                        c.updateLoginState(MapleClient.LOGIN_SERVER_TRANSITION);

                        String channelServerIP = MapleClient.getChannelServerIPFromSubnet(c.getSession().getRemoteAddress().toString().replace("/", "").split(":")[0], c.getChannel());
                        if(channelServerIP.equals("0.0.0.0")) {
                                [B]String[] socket = LoginServer.getInstance().getIP(c.getChannel()).split(":");[/B]
                                c.getSession().write(MaplePacketCreator.getServerIP(InetAddress.getByName(socket[0]), Integer.parseInt(socket[1]), charId));
                        } else {
                                [B]String[] socket = LoginServer.getInstance().getIP(c.getChannel()).split(":");[/B]
                                c.getSession().write(MaplePacketCreator.getServerIP(InetAddress.getByName(channelServerIP), Integer.parseInt(socket[1]), charId));
                        }
                } catch (UnknownHostException e) {
                        log.error("Host not found", e);
                }

                } else {

            c.getSession().write(MaplePacketCreator.wrongPic());
            }
        }
}

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I bolded the 2 lines.

I would think it would be something like this, but its not because it says "int can not be deferenced"
String[] socket = LoginServer.getInstance().getIP(c.getWorld().getCh annel()).split(":");

Quote:

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this file is giving errors

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Please copy and paste the FULL text of the error messages here.

Code:

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init:
deps-clean:
Deleting directory C:\Users\Dan\Desktop\Source\build
clean:
init:
deps-jar:
Created dir: C:\Users\Dan\Desktop\Source\build\classes
Compiling 433 source files to C:\Users\Dan\Desktop\Source\build\classes
C:\Users\Dan\Desktop\Source\src\net\login\handler\CharSelectedWithPicHandler.java:42: int cannot be dereferenced
                    String[] socket = LoginServer.getInstance().getIP(c.getWorld().getChannel()).split(":");
C:\Users\Dan\Desktop\Source\src\net\login\handler\CharSelectedWithPicHandler.java:45: int cannot be dereferenced
                    String[] socket = LoginServer.getInstance().getIP(c.getWorld().getChannel()).split(":");
C:\Users\Dan\Desktop\Source\src\net\login\handler\RegisterPicHandler.java:39: int cannot be dereferenced
                    String[] socket = LoginServer.getInstance().getIP(c.getWorld().getChannel()).split(":");
C:\Users\Dan\Desktop\Source\src\net\login\handler\RegisterPicHandler.java:42: int cannot be dereferenced
                    String[] socket = LoginServer.getInstance().getIP(c.getWorld().getChannel()).split(":");
Note: Some input files use or override a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
4 errors
BUILD FAILED (total time: 2 seconds)

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This Line:

Code:

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String[] socket = LoginServer.getInstance().getIP(c.getWorld().getChannel()).split(":");

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needs to work for this function:

Code:

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public String getIP(int world, int channel) {
        return channelServer.get(world).get(channel);
    }

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Quote:

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int cannot be dereferenced

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The error message says you are using an int for a reference.
For example:
int notObject = 1;
notObject.toString(); // int can't be used here

Check what ALL the methods return in your long chain. One must return an int.

yea...

Code:

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public int channel = 1;

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Code:

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private int world;

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So how do i fix the fact I cant reference an int?

Quote:

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So how do i fix the fact I cant reference an int

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An interesting question for a programmer!
Use the int to index an array of objects.

You can only reference objects. An int is an int. It has no members or methods. Only a value.

Quote:

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Originally Posted by Dom

Code:

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public String getIP(int channel) {
        return channelServer.get(channel);
    }

---

Code:

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C:\Users\Dan\Desktop\Source\src\net\login\LoginServer.java:81: incompatible types
found  : java.util.Map<java.lang.Integer,java.lang.String>
required: java.lang.String
        return channelServer.get(channel);
1 error
BUILD FAILED (total time: 3 seconds)

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What is wrong? If you need any whole files, please post so.

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Nice, compiling odinMS

Presumbaly getWorld returns an int...
So just pass that in for the world parameter.
And presumably you also have a getChannel on MapleClient, so use that to pass the channel through.