class,interface, or enum expected?

**Eimaj** · September 28th, 2012, 01:27 PM

Sorry if I'm bothering anyone, I'm very new to java and i need some help with a code in my java file.

class,interface, or enum expected

On these lines:

package stickemu.Tools;
package stickemu.Types;
package stickemu.Lobby;

Before them i have
package stickemu;
But the error shows for only them lines

Here's the actual java file(Main.java)

/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
 
package stickemu;
package stickemu.Tools;
package stickemu.Types;
package stickemu.Lobby;
 
import java.util.Properties;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.nio.charset.Charset;
import java.net.InetSocketAddress;
import stickemu.Tools.*;
import stickemu.Types.*;
import stickemu.Lobby.*;
 
import org.apache.mina.core.session.IdleStatus;
import org.apache.mina.filter.codec.ProtocolCod&#8230;
import org.apache.mina.filter.codec.textline.Te&#8230;
import org.apache.mina.transport.socket.nio.Nio&#8230;
import org.apache.mina.filter.executor.Executor&#8230;
 
/**
*
* @author Simon
*/
public class Main{
public static String IP = "5.175.221.236";
private static final int PORT = 80;
private static LobbyServer LS;
 
/**
* @param args the command line arguments
*/
public static void main(String[] args) {
 
NioSocketAcceptor SocketAcceptor = new NioSocketAcceptor();
SocketAcceptor.getSessionConfig().setIdl&#8230; IdleStatus.BOTH_IDLE, 10 );
SocketAcceptor.getSessionConfig().setRea&#8230; 2048 );
SocketAcceptor.setHandler(new StickNetworkHandler());
ExecutorFilter executor = new ExecutorFilter();
SocketAcceptor.getFilterChain().addLast( "codec", new ProtocolCodecFilter( new TextLineCodecFactory( Charset.forName( "UTF-8" ), "\0", "\0")));
SocketAcceptor.getFilterChain().addLast(&#8230; executor);
LS = new LobbyServer();
 
Properties ConfigProps = new Properties();
try {
ConfigProps.load(new FileInputStream("config.properties"));
} catch (FileNotFoundException fnf)
{
System.out.println("Unable to start server: config.properties was not found.");
return;
} catch (IOException e)
{
System.out.println("Unable to start server: Error reading from config.properties.");
return;
}
 
Main.IP = ConfigProps.getProperty("server_IP");
DatabaseTools.user = ConfigProps.getProperty("db_user");
DatabaseTools.pass = ConfigProps.getProperty("db_pass");
DatabaseTools.server = ConfigProps.getProperty("db_server");
DatabaseTools.database = ConfigProps.getProperty("db_database");
 
 
try
{
SocketAcceptor.bind(new InetSocketAddress(PORT));
 
System.out.printf("Server started on port %s \n", PORT);
System.out.println();
}
 
catch (Exception e)
{
System.out.printf("Unable to bind to port %s, Exception thrown: %s \n", PORT, e);
System.out.println();
return;
}
 
DatabaseTools.dbConnect();
}
 
public static LobbyServer getLobbyServer()
{
return LS;
}
 
}

Please help me fix, been searching up fixes but i can't find anything to help!

Thanks !

**Norm** · September 28th, 2012, 01:51 PM

A class can only be in one package.
The compiler is confused by the extra package statements and is looking to find a definition for: class,interface, or enum after the first package statement.

**Eimaj** · September 28th, 2012, 02:03 PM

Thank you,
I also just tried removing the following, but now i get the following errors in the compiler.

Main.java:15: error: package stickemu.Tools does not exist
import stickemu.Tools.*;
^
Main.java:16: error: package stickemu.Types does not exist
import stickemu.Types.*;
^
Main.java:17: error: package stickemu.Lobby does not exist
import stickemu.Lobby.*;
^
Main.java:19: error: package org.apache.mina.core.session does not exist
import org.apache.mina.core.session.IdleStatus;
                                   ^
Main.java:20: error: package org.apache.mina.filter.codec does not exist
import org.apache.mina.filter.codec.ProtocolCodecFilter;
                                   ^
Main.java:21: error: package org.apache.mina.filter.codec.textline does not ex
t
import org.apache.mina.filter.codec.textline.TextLineCodecFactory;
                                            ^
Main.java:22: error: package org.apache.mina.transport.socket.nio does not exi
 
import org.apache.mina.transport.socket.nio.NioSocketAcceptor;
                                           ^
Main.java:23: error: package org.apache.mina.filter.executor does not exist
import org.apache.mina.filter.executor.ExecutorFilter;
                                      ^
Main.java:32: error: cannot find symbol
    private static LobbyServer LS;
                   ^
  symbol:   class LobbyServer
  location: class Main
Main.java:86: error: cannot find symbol
    public static LobbyServer getLobbyServer()
                  ^
  symbol:   class LobbyServer
  location: class Main
Main.java:39: error: cannot find symbol
        NioSocketAcceptor SocketAcceptor = new NioSocketAcceptor();
        ^
  symbol:   class NioSocketAcceptor
  location: class Main
Main.java:39: error: cannot find symbol
        NioSocketAcceptor SocketAcceptor = new NioSocketAcceptor();
                                               ^
  symbol:   class NioSocketAcceptor
  location: class Main
Main.java:40: error: cannot find symbol
        SocketAcceptor.getSessionConfig().setIdleTime( IdleStatus.BOTH_IDLE, 1
);
                                                       ^
  symbol:   variable IdleStatus
  location: class Main
Main.java:42: error: cannot find symbol
        SocketAcceptor.setHandler(new StickNetworkHandler());
                                      ^
  symbol:   class StickNetworkHandler
  location: class Main
Main.java:43: error: cannot find symbol
        ExecutorFilter executor = new ExecutorFilter();
        ^
  symbol:   class ExecutorFilter
  location: class Main
Main.java:43: error: cannot find symbol
        ExecutorFilter executor = new ExecutorFilter();
                                      ^
  symbol:   class ExecutorFilter
  location: class Main
Main.java:44: error: cannot find symbol
        SocketAcceptor.getFilterChain().addLast( "codec", new ProtocolCodecFil
r( new TextLineCodecFactory( Charset.forName( "UTF-8" ), "\0", "\0")));
                                                              ^
  symbol:   class ProtocolCodecFilter
  location: class Main
Main.java:44: error: cannot find symbol
        SocketAcceptor.getFilterChain().addLast( "codec", new ProtocolCodecFil
r( new TextLineCodecFactory( Charset.forName( "UTF-8" ), "\0", "\0")));
 
       ^
  symbol:   class TextLineCodecFactory
  location: class Main
Main.java:46: error: cannot find symbol
        LS = new LobbyServer();
                 ^
  symbol:   class LobbyServer
  location: class Main
Main.java:62: error: cannot find symbol
        DatabaseTools.user = ConfigProps.getProperty("db_user");
        ^
  symbol:   variable DatabaseTools
  location: class Main
Main.java:63: error: cannot find symbol
        DatabaseTools.pass = ConfigProps.getProperty("db_pass");
        ^
  symbol:   variable DatabaseTools
  location: class Main
Main.java:64: error: cannot find symbol
        DatabaseTools.server = ConfigProps.getProperty("db_server");
        ^
  symbol:   variable DatabaseTools
  location: class Main
Main.java:65: error: cannot find symbol
        DatabaseTools.database = ConfigProps.getProperty("db_database");
        ^
  symbol:   variable DatabaseTools
  location: class Main
Main.java:83: error: cannot find symbol
        DatabaseTools.dbConnect();
        ^
  symbol:   variable DatabaseTools
  location: class Main
24 errors

Please help!

**Norm** · September 28th, 2012, 02:10 PM

package stickemu.Tools does not exist

You need to find the definitions for those packages and make sure they are on the classpath for the compiler.
Are those packages in a jar file or are they files in a folder?

How are you compiling the program? What is the command line you are using?
The javac command has a -cp option that is used to specify the classpath.

**Eimaj** · September 28th, 2012, 02:18 PM

My compiler

"C:\Program Files\Java\jdk1.7.0\bin\javac.exe" -cp . Main.java
pause

stickemu is the folder they are in, and then Tools,Game,Lobby are folders again.

**Norm** · September 28th, 2012, 02:25 PM

With this package: stickemu.Tools the Tools folder must be in the stickemu folder
The stickemu folder must be in the current folder.

**Eimaj** · September 28th, 2012, 02:32 PM

Sorry i don't understand,
could you make it clear what the problem is?

**Norm** · September 28th, 2012, 02:36 PM

what the problem is

The compiler can not find the packages the import statements refer to.

The classpath needs to point to the folder that contains the first folder on the package path: stickemu

**Eimaj** · September 28th, 2012, 02:37 PM

So how can i fix this?

**Norm** · September 28th, 2012, 02:41 PM

Set the -cp option to point to the folder with stickemu folder. Make sure the other classes are in the folders that reflects their packages.

Try using google to get more info on how to use packages and classpaths in java.

**Eimaj** · September 28th, 2012, 02:44 PM

Sorry i really am a newbie in Java.
But like this?

"C:\Program Files\Java\jdk1.7.0\bin\javac.exe" -cp . stickemu/Main.java
pause

If not please correct me for me!

**Norm** · September 28th, 2012, 02:45 PM

What happens when you execute that command?

The command line to use depends on where the files and folders are located.
Please copy the full contents of the console window where you enter the javac command.
Also enter the dir command to list the contents of the folder.

On windows: To copy the contents of the command prompt window:
Click on Icon in upper left corner
Select Edit
Select 'Select All' - The selection will show
Click in upper left again
Select Edit and click 'Copy'

Paste here.

**Eimaj** · September 28th, 2012, 02:47 PM

Here it is, Hope you can help!

"C:\Program Files\Java\jdk1.7.0\bin\javac.exe" -cp . stickemu/Main.java
pause

**Norm** · September 28th, 2012, 02:49 PM

Please re-read post #12.

**Norm** · September 28th, 2012, 02:51 PM

Take a look at the tutorial: Creating and Using Packages (The Java™ Tutorials > Learning the Java Language > Packages)

**Eimaj** · September 28th, 2012, 02:51 PM

C:\Users\Jay\Desktop\StickEMU - Release\src>"C:\Program Files\Java\jdk1.7.0\bin\
javac.exe" -cp . stickemu/Main.java
stickemu\Main.java:19: error: package org.apache.mina.core.session does not exis
t
import org.apache.mina.core.session.IdleStatus;
^
stickemu\Main.java:20: error: package org.apache.mina.filter.codec does not exis
t
import org.apache.mina.filter.codec.ProtocolCodecFilter;
^
stickemu\Main.java:21: error: package org.apache.mina.filter.codec.textline does
not exist
import org.apache.mina.filter.codec.textline.TextLineCode cFactory;
^
stickemu\Main.java:22: error: package org.apache.mina.transport.socket.nio does
not exist
import org.apache.mina.transport.socket.nio.NioSocketAcce ptor;
^
stickemu\Main.java:23: error: package org.apache.mina.filter.executor does not e
xist
import org.apache.mina.filter.executor.ExecutorFilter;
^
.\stickemu\Types\StickClient.java:21: error: package org.apache.mina.core.sessio
n does not exist
import org.apache.mina.core.session.IoSession;
^
.\stickemu\Types\StickClient.java:32: error: cannot find symbol
private IoSession session;
^
symbol: class IoSession
location: class StickClient
.\stickemu\Types\StickClient.java:52: error: cannot find symbol
public StickClient(IoSession _session, String new_UID)
^
symbol: class IoSession
location: class StickClient
.\stickemu\Types\StickClient.java:223: error: cannot find symbol
public IoSession getIoSession()
^
symbol: class IoSession
location: class StickClient
stickemu\Main.java:39: error: cannot find symbol
NioSocketAcceptor SocketAcceptor = new NioSocketAcceptor();
^
symbol: class NioSocketAcceptor
location: class Main
stickemu\Main.java:39: error: cannot find symbol
NioSocketAcceptor SocketAcceptor = new NioSocketAcceptor();
^
symbol: class NioSocketAcceptor
location: class Main
stickemu\Main.java:40: error: cannot find symbol
SocketAcceptor.getSessionConfig().setIdleTime( IdleStatus.BOTH_IDLE, 10
);
^
symbol: variable IdleStatus
location: class Main
.\stickemu\Tools\StickNetworkHandler.java:34: error: package org.apache.mina.cor
e.session does not exist
import org.apache.mina.core.session.IdleStatus;
^
.\stickemu\Tools\StickNetworkHandler.java:35: error: package org.apache.mina.cor
e.service does not exist
import org.apache.mina.core.service.IoHandlerAdapter;
^
.\stickemu\Tools\StickNetworkHandler.java:36: error: package org.apache.mina.cor
e.session does not exist
import org.apache.mina.core.session.IoSession;
^
.\stickemu\Tools\StickNetworkHandler.java:38: error: cannot find symbol
public class StickNetworkHandler extends IoHandlerAdapter
^
symbol: class IoHandlerAdapter
.\stickemu\Tools\StickNetworkHandler.java:45: error: cannot find symbol
public void sessionOpened(IoSession session) throws Exception
^
symbol: class IoSession
location: class StickNetworkHandler
.\stickemu\Tools\StickNetworkHandler.java:78: error: cannot find symbol
public void exceptionCaught( IoSession session, Throwable cause ) throws Exc
eption
^
symbol: class IoSession
location: class StickNetworkHandler
.\stickemu\Tools\StickNetworkHandler.java:84: error: cannot find symbol
public void messageReceived( IoSession session, Object message ) throws Exce
ption
^
symbol: class IoSession
location: class StickNetworkHandler
.\stickemu\Tools\StickNetworkHandler.java:123: error: cannot find symbol
public void sessionIdle( IoSession session, IdleStatus status ) throws Excep
tion
^
symbol: class IoSession
location: class StickNetworkHandler
.\stickemu\Tools\StickNetworkHandler.java:123: error: cannot find symbol
public void sessionIdle( IoSession session, IdleStatus status ) throws Excep
tion
^
symbol: class IdleStatus
location: class StickNetworkHandler
.\stickemu\Tools\StickNetworkHandler.java:130: error: cannot find symbol
public void sessionClosed(IoSession session) throws Exception {
^
symbol: class IoSession
location: class StickNetworkHandler
.\stickemu\Tools\DatabaseTools.java:21: error: package org.gjt.mm.mysql does not
exist
import org.gjt.mm.mysql.Driver;
^
stickemu\Main.java:43: error: cannot find symbol
ExecutorFilter executor = new ExecutorFilter();
^
symbol: class ExecutorFilter
location: class Main
stickemu\Main.java:43: error: cannot find symbol
ExecutorFilter executor = new ExecutorFilter();
^
symbol: class ExecutorFilter
location: class Main
stickemu\Main.java:44: error: cannot find symbol
SocketAcceptor.getFilterChain().addLast( "codec", new ProtocolCodecFilte
r( new TextLineCodecFactory( Charset.forName( "UTF-8" ), "\0", "\0")));
^
symbol: class ProtocolCodecFilter
location: class Main
stickemu\Main.java:44: error: cannot find symbol
SocketAcceptor.getFilterChain().addLast( "codec", new ProtocolCodecFilte
r( new TextLineCodecFactory( Charset.forName( "UTF-8" ), "\0", "\0")));

^
symbol: class TextLineCodecFactory
location: class Main
.\stickemu\Tools\StickNetworkHandler.java:44: error: method does not override or
implement a method from a supertype
@Override
^
.\stickemu\Tools\StickNetworkHandler.java:77: error: method does not override or
implement a method from a supertype
@Override
^
.\stickemu\Tools\StickNetworkHandler.java:83: error: method does not override or
implement a method from a supertype
@Override
^
.\stickemu\Tools\StickNetworkHandler.java:122: error: method does not override o
r implement a method from a supertype
@Override
^
.\stickemu\Tools\StickNetworkHandler.java:129: error: method does not override o
r implement a method from a supertype
@Override
^
32 errors

C:\Users\Jay\Desktop\StickEMU - Release\src>pause
Press any key to continue . . .

Is this the correct thing your looking for?

**Norm** · September 28th, 2012, 02:53 PM

Did you read the error message? Now the compiler can not find another package: org.apache.mina...

Where is dir command used to show what was in the folder?

Read the tutorial given in post#15

**Eimaj** · September 28th, 2012, 03:03 PM

I really REALLY am confused with what your trying to say to me, As i stated i am VERY VERY new to java. i really don't understand the problem and i don't understand what your trying to show or tell me to do. Please explain a bit more noob friendly.

Thanks

**Norm** · September 28th, 2012, 03:07 PM

Have you read the tutorial about packages: Creating and Using Packages (The Java™ Tutorials > Learning the Java Language > Packages)

If you have questions after reading the tutorial, copy the parts you don't understand, paste them here and ask your questions about it.

**Eimaj** · September 28th, 2012, 03:09 PM

I've read it but i don't know how this helps me, neither do i know how it can help me. :/

**Norm** · September 28th, 2012, 03:11 PM

Sorry, I don't think you could have read through the 7 or so pages so quickly.

**Eimaj** · September 28th, 2012, 03:16 PM

Sorry i didn't seen "Next Page" , I'll continue reading.

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