getIp Function finding wrong type

[Dom]

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

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)

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

[Spike_CT]

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.

[Dom]

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

Fixed Function:

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

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?

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());
            }
        }
}

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(":");

[Norm]

this file is giving errors

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

[Dom]

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)

This Line:

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

needs to work for this function:

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

[Norm]

int cannot be dereferenced

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.

[Dom]

yea...

public int channel = 1;

private int world;

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

[Norm]

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

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.

[JvlShz]

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

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)

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

Nice, compiling odinMS

[Tolls]

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.