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TeamSpeak 3 MusicBot in Java

I want to make a TeamSpeak 3 Musicbot in Java. But I don't find any Protocol from Teamspeak for the Voice transmission. And after searching for a Client API, for Java, I didn't find anything. Only for a ServerQuery but that doesn't help me I think.
I only want the Client to connect to the Server and then plays a Song, though that wouldn't be that hard!
Maybe you Guys can help me?

Teamspeak does not have an official client-api. You can only use the Query-API and create plugins. As the Query-API does not support any voice-communication, that's not the way you should go. The (most) official way of creating a Teamspeak3 MusicBot would be to run a client on your server which has a plugin installed which allows you to play music (more or less a soundboard). Sinusbot is exactly built this way.
Another "unofficial" option would be to make use of unofficial reverses of the teamspeak-protocol and built you own client from these. If you want more information about this, this repository might help you (and look for other projects the creator pushed, they might help you too).

I'm not quite sure if this helps, but have been developing a TeamSpeak 3 music bot using Kotlin, which is compatible with Java as it runs on the JVM (Java Virtual Machine)
The way it works is that it first launches the TeamSpeak client and connects to the desired server and channel, then it starts monitoring the chat log -> the bot can be controlled by entering commands into the chat.
The bot uses the TeamSpeak ClientQuery via Netcat to send messages to the chat.
It is completely client-side so you don't need to be server admin to get it working.
The bot currently supports Spotify, YouTube, and SoundCloud.
You can check it out at https://gitlab.com/Bettehem/ts3-musicbot

Android app need help connecting to a JAVA localhost server

I've had a look around and could not find what I'm looking for, so please feel free to redirect me.
I'm writing a card game that uses a Java server that stores the card information. I want to develop an Android app that connects to this server (via TCP/IP is my initial thought) and issues the commands i.e. pick up cards, play cards etc. (as the cards are stored in arraylists within the server app.)
My knowledge of Android is extremely limited and I cant find any good sources that could possibly help me, or explain how android networking works.

You need tcp server socket communication >
http://developer.android.com/reference/java/net/Socket.html

I would recommend to use a REST service and communicate via JSON. You can use for example Robospice in combination with Jackson2 which also brings you async communication and caching out of the box.
https://github.com/stephanenicolas/robospice/wiki/Starter-guide
Socket communication is really old school ;-)

Extern access to a Java EE webapp

When developing a Java EE 7 webapp (Win8, eclipse Kepler, JBoss Tools 4.1.1, wildfly8.0CR) I can use the application at localhost:8080/app/
But I wonder what to do, if I want an extern access to that app, e.g. from my other PC. What configuration is needed, or do you need a "real" server for such a purpose?
Thanks in advance

How public to you want your website to be?
If you want to access it from another computer on the same network(for example your home network) you need to adjust your network and firewall settings so that that you would have access from one computer to anoher on the same network. Then if on the computer that contains the app you would access it for example http://localhost:8080/myapp then on another network you would access it http://ip-of-the-comuter-that-contains-the-app:8080/.
If you would like to access it from outside the local network then the process is same, but a static IP would be recommended to the computer that contains the app.
If you would like the general public to use the app, then hosting it from your PC may not be such a good idea and somekind of server solution is adviseable. There are lots of different cloud solutions like http://aws.amazon.com/ec2/ or https://developers.google.com/appengine/ that would provide enough flexibility for majority of apps. Or you could ofcourse have your own server hardware, but this can turn out to be much more expensive to keep stable and secure.

For a quick-and-dirty solution you can choose the "Enable remote access" option on the server (double click the server, and you should see a check box in the server editor).
This will tell the server to start listening on all network interfaces and not just the local one.
btw. we only listen on local network interface by default for security reasons since we don't want you to unintentionally get hacked if a vulnerability is found and used by someone malicious.

How to put Java program online?

I am learning Java and am trying to do some experiments with networking Java programs.
I have a program made in 2 parts with a client and a server and it works in local testing but the program actually has usefulness for me and a friend of mine and I want to put the server online so both of us can connect to it and use it.
Where/How can I put the program online and have it running so that the client programs can connect to the ServerSocket with an ip address? (Preferably free)

If you dont want to pay server hosting then I would open a virtual server on my computer, then playaround with modem and forward related port to server ip. I would use a port more than 40000. Then just send your ip and port your friend or update application.

If you really want the application to go live within 5 mins, try Jelastic. If you have built a WAR file, simply sign up with their server,choose a provider closest to your geo location, configure Tomcat and you can upload the WAR file through their fantastic web console. Otherwise if you have some source control system(SVN,GIT etc), you just connect and build it with their Maven console and you can be ready. I used it for my start up(Cloudlabz) and really found it exciting.
Surya

You could also consider the cheapest Rackspace Cloud Server. You'll get a full fledged Linux server (distribution of your choice) for about USD 11/month. I've done that now and then myself to try things out.
Just install Java on it and you're good to go.
http://www.rackspace.com/cloud/cloud_hosting_products/servers/pricing/

http://ideone.com/
is that what you want for this?
This is a free web app for you to run your program online....so you can just paste your code and run it.

On the cloud you could use two different services in order to host your Java application.
IaaS (Infrastructure as a Service). Where you can just rent a specific infrastructure on the cloud and you could install and configure all the services that you need.
PaaS (Platform as a Service). In this case, you still enjoy the infrastructure on the cloud + the service Aaren full pre-configured. It means that you can deploy your application without installing or configuring anything. You just need to deploy your application. You have an example about how it works here. Also, you usually can test your Java apps on the cloud without paying.

You should host the server in Heroku ,they offer a free hosting with limits , I have an app there

Remote java program execution using ftp, very large dataset on remote machine - program to data vs data to program

I am developing a java based application; its pertinent requirements are listed below
Large datasets exist on several machines on network. my program needs to (remotely) execute a java program to process these data sets and fetch the results
A user on a windows desktop will need to process datasets (several gigs) on machine A. My program can reside on the user's machine. He will execute my program from his machine and initiate the dataset processing on remote machine(s)
Instead of getting the dataset over the network from the remote machine to his machine, he will execute the program on the remote machine and fetch results
The user may have open access to the other machines but ftp is the requirement
Data should not be brought through network to the user's machine.
Users have windows OS
My question(s)
How can I perform this kind of remote process execution ? Any ideas?
I am looking at hadoop; I am working on Windows XP. I was unable to get hadoop working for a single node cluster; I am unable to find good documentation. I therefore haven't quite tested hadoop. Any comments on if I am on the right track?
Any links any of you has found useful for installation of hadoop and trouble shooting?
Thanks in advance for any responses. Do please let me know if I should provide any more/specific details.
-jv

Java has a RMI API that you could use, assuming that you can have a JAVA VM running on your remote machines. That's the lightest weight solution. The next lightest weight would be straight socket communication. After that you're getting into EJB servers or Web Servers, which is probably overkill.

Have a look at how to write web services with Java 6. That allows you to publish a method as a web service with an annotation. A web service client is small and does not require additional software. I found the Idea IntelliJ IDE easy to use, and generated a pure Java 6 client.
Then it essentially boils down to making a "normal" method call, and processing the result.
Keep it simple. Grid software is most likely not what you want.