How To Create Chat Project
Jul 8, 2014i don't know how create that project ,
View Replies
ADVERTISEMENT
Java Chat Using MySQL / How To Keep Updating Chat
Nov 12, 2014Using MySQL to store the chat data/users and then recieve the chat data every time the chat table updates because someone entered a new message. I am woundering if this is the right way to do it or should try something else?
What I am looking for is someway to run a query each time the database has been updated or receive data from the database each 10 sec, is it even posible, if yes then how? Been trying to look into threading, but do not seem solve this problem and cant find any information about it.
Assembling Database Project From A Downloaded Project Zip File?
Apr 12, 2014i downloaded a sample database code of an online payroll system. How can i assemble it to know how it works.
the files include php and mysql files. it is to build an online payroll system
How To Return A String From Project Into Android Project
Jun 26, 2014I tried many times to return a string from java project to an android project But it keeps sending incorrect values as in 2 as it should be 1 here is an example.
Java Project:
boolean somethingboolean = false;
if(something.equals("1")){
somethingboolean = true;
}
public static String getString(){
if(somethingboolean == true){
[Code]...
Android project:
System.out.println(JavaProject.getString())
and in the android project it prints "FALSE"
So what should i do?
Small Chat Lobby
Feb 4, 2014Me and my brother are working on a small java project to learn network programming and get some experience working with networking code. We decided to make a relatively simple client/server program where clients get into a simple chat lobby and can invite others to play small games(like pong). The basic server code has been written, and we have made a special client that is used for debugging.
We use a self-defined protocol of Strings where a message looks like "4-|user,pass". The number before the delimiter "-|" is the operation code, that tells the server what kind of message this client sends. Based on that number, the server dispatches the message to the appropriate handler method. 4 is authentication for example, and the handler looks the user and pass up in a file and if found, returns true, otherwise, false. Then the server responds to the clinet with 2-|"any message" where the client will recognize opcode 2 as a "authentication accepted" and proceed with the next part of client code. In a similar way, we plan to write all message types(both in the game, in the lobby and in a game setup room).
While testing we ran into a problem where the BufferedReader .readLine() does not seem to be a blocking call like it should be, so the client keeps spamming 'null' in the output field that we made to see the server response to the message we send. When we try to debug the server code and set breakpoints at the suspicious locations, it strangely skips both while(true) loops without activating either breakpoint and executes the finally{} code, even though the client did not close the connection and the second while loop was never entered. The first while loop IS entered though, because the test client gets a "0" on its output, which is the server message indicating "please authenticate yourself".
Also, if we approach things in a dumb way that can be done way more efficiently or easier to read/manage, please do tell. Keep in mind we are beginners though! We decided to use messages in a string format and decode it at both sides as it seemed easier than transmitting java objects and making sure they are of the same type, also for reducing overhead as much of possible. URL....
The server code:
package Chatroom;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.HashSet;
/**
* This is the main server class. It is the core of the server functionality, and the listener for incoming clients that will spawn threads to deal with clients, track their information, change their states and ultimately, clean up after all clients by keeping the data structures up to date.
[code]...
Code For Multiuser Chat With GUI
Jun 19, 2014i am writing the code for multiuser chat with GUI and i wanna create a quiz game where the all the users i.e the clients can aniticipate in the game. is there a way where we can combine the game and the users together in a single gui screen. the game is on the left box of the gui and chat space on the right.
View Replies View RelatedVoice Chat Using Java MulticastSocket
Apr 13, 2014I am trying to implement the voice chat using java multiCastSocket programming. Taking the input from the microphone and trying to listen it on the speaker. Problem is am not hear any voice back. I debugged through it wireshark and i am receiving the packets from the multicast group address. Looks like there is some problem while i am trying to get the sound out of speaker.
/*Sender Code*/
public class MulticastAudioSender {
/** Port to use for IP Multicast sending. */
public static final int IPM_PORT = 7778;
/** Address to use for IP Multicast sending. */
public static final String IPM_ADDRESS = "235.1.1.1";
[Code] ....
Encrypted Video Chat Program Using JMF
Oct 23, 2014I am trying to make an encrypted video chat program using JMF. I have successfully written the "video chat" part - which includes getting data from webcam and transmitting it using RTP, but how to get raw data video to encrypt it before it stream between the webcam and the network.
For RTP I am using RTPManager, and for reading from the webcam I am using this code:
DataSource ds;
CaptureDeviceInfo di = null;
StateHelper sh = null;System.out.println("Started Video");
String str1 = "vfw:Logitech USB Video Camera:0";
String str2 = "vfw:Microsoft WDM Image Capture (Win32):0";
String str3 = "vfw:Microsoft WDM Image Capture (Win32):0 : vfw://0";
[Code] .....
I plan on using a stream cipher for encryption, maybe RC4.
Using Socket And JSP For Web-based Chat Application
Feb 13, 2014I am new to JSP !! and I'm developing a web-based chatting system using JSP and socket.
The problem I am facing is that the sender can send message but on the receiver side we have to manually refresh the page. The sender stays into blocking mode until the receiver refresh its page !
After that I've implemented auto-refresh on the receiver side and "Connection Refused" exception is generated.
Video Chat Tool Using Java RMI
Jul 3, 2014I am stuck in making a C/S video chat program using JAVA RMI technology. I am more familiar with Java RMI.
View Replies View RelatedJava Chat Application With Springs
Nov 28, 2014how to develop a CHAT APPLICATION using Java springs .this should be very simple client server project with rich front end IT contains login page and a chat page.
View Replies View RelatedSimple Server / Client Chat
Dec 28, 2014I've been trying to create a server/client chat program, but I keep running into areas where I'm not really sure how to work it. I've run into a wall where my client just sits and spins instead of working. URL.... I can work out the dynamic parts later, I just want to understand the meat and potatoes of reading from sockets and writing to sockets (and how to do both at the same time).
View Replies View RelatedClient / Server Chat Program
Dec 6, 2014So i wrote this text to try and create a simple chat program that does the following: Prepend names to messages, announce entrance and exit of chat, display user list, and share a whiteboard.So far the Server seems to be working but the Chat Client is throwing errors at me left and right..
CURRENT ERROR:
Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.
C:Windowssystem32>cd..
C:Windows>cd..
C:>Usersjaydesktopchat
'Usersjaydesktopchat' is not recognized as an internal or external command,
operable program or batch file.
[code]....
System For Emulating Conversation In Chat Rooms?
Oct 11, 2014So for my current work I do a lot of chatting to customers, but I spent 80% of my time answering things that could be automated, I'd like to know where the best place to start would be for the following.
Being able to compile data on certain conversation parts,
for instance "How many employees do you have?/How many people work there?/how many people do you employ" would be a bunch of different ways of saying the same thing, so i could have a stock answer to that: "x employees work at Acme"
So what language and/or framework would be best for having a program like that running, and giving me an alert when it encounters a conversation direction it's not used to, so i can add in an option, so its sort of like I'm teaching at as we go, but I think it's a lot simpler than most AI haha.
Also a way of selecting and reading chat windows, like how old runescape bots used colours.
I'd like do all the data input myself, and I'd like to write or design the framework if possible, but I don't even know what keywords to use find out where I should start.
Multi-User Console Chat Program
Nov 22, 2014My task is to create multiuser console chat program. During whole day of poking around , i finally stand on such concept:
1. When running , Server part must stay into while(true) loop and create threads on each ServerSocket.accept() call, providing socket object inside thread. i.e.
while (true){
System.out.println("Waiting for client to connect");
Thread t = new Thread(new Runner(servSocket.accept(),listOfClientSockets));
System.out.println("Starting thread");
t.start();
}
2. Client side always stays within while(true) loop and waiting for user input with ScannerInstance.nextLine() method.
As soon as user prints something and hits enter, data being captured from scanner and thrown to socket output stream to the server.
My question is : if all parties (X clients and server) are actually in waiting mode (server is waiting for connections and each client is waiting for user input), who will refresh the screen for each client to draw the messages other parties sent?
At this time , each party see updates only when he hits enter and while loop does next iteration reading data from buffer and displaying on console.
How To Make Video Chat Possible In Java Web Application
Mar 15, 2014How to make video chat possible in java web application??
View Replies View RelatedJSP :: How To Make Interactive Chat Like Gmail / Facebook
Feb 24, 2014How can i make interactive chat like GMAIL, FACEBOOK.
Can it possible .. using ajax that frequently updating a portion/part/ chat box.
If we do in this way, I am sure our server will be overloaded.
Simple Chat Program With Client / Server EOFException
Feb 13, 2015When I Start Server and login from client everything goes fine but as soon as I want to send amessage or use showIn or even logOut .
Get below error
Exception creating new Input/output Streams: java.io.EOFException
Chat Application Working On Dynamic IP But Not On Static (server) IP
Apr 25, 2014I have developed a window based chat application for chatting, screen sharing, file sharing, video playing.
All are working well on my local network systems (eg. dynamic server ip is 192.168.1.122). But if i try to run on my server (e.g. static server ip 50.62.8.22) it is not get connected..,
Send Emotions In Chat Application Built In Java Using Netbeans
Jan 26, 2014how to send emotions in a chat application built in java using netbeans ?
View Replies View RelatedUDP Voice Chat - Play With The Index Of Mixer Info Array
Jan 18, 2012I was trying to make a UDP voice chat but i couldn't make the receive method work! so i just move on to work with TCP. I found a simple code that i found it pretty easy to understand,but i couldn't make it work, always stuck within exception.
Here is the output I got:
Available mixers:
Java Sound Audio Engine
Microsoft Sound Mapper
WinOS,waveOut,multi threaded
java.lang.IllegalArgumentException: Line unsupported: interface TargetDataLine supporting format PCM_SIGNED, 8000.0 Hz, 16 bit, mono, little-endian, audio data
And here is the code
sender:
Java Code:
package sender;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.net.ServerSocket;
import java.net.Socket;
import javax.sound.sampled.AudioFormat;
[Code] ....
I tried to play with the index of mixerInfo array in the line
Java Code:
Mixer mixer = AudioSystem.getMixer(mixerInfo[1]); mh_sh_highlight_all('java');
But nothing happened. How I can fix that?
GUI Project Won't Compile
May 6, 2014I'm doing a project and my code won't compile.
import javax.swing.*;
import java.awt.event.*;
public class BookStore extends JFrame{
private JPanel panel;
private JLabel question; //This will be where the question is.
private JTextField NumofBooks; //this is where the user will enter the number of books
private JButton OKButton,ClearButton,ExitButton; //Will give the user the points, cancel the points, and exit
private final int WINDOW_WIDTH = 310; //Need to make it visible
private final int WINDOW_HEIGHT = 100;
[code]....
JSP :: Access Project Through VPN
Nov 24, 2014I am deploy my project in a machine and access it through VPN. In one page i am sending parameters array through hidden input field. When i access it in process page through request.getParameterValues it return null values, you can see it in attachment.This page work fine without VPN.
View Replies View RelatedExporting Project In Eclipse?
Feb 10, 2015i have programmed a game using JPanel and JFrame. My App is of this type (if this is relevant to the problem):
public class Main extends JPanel {
private JFrame frame;
public static void main(String[] args) {
new Main();
} public Main() {
frame.setSize(WIDTH, HEIGHT);
[Code] ....
The problem is, When i export the file in eclipse as Runnable jar file,and run the exported file, it gives me a blank screen (white default) and nothing is running. Whereas, normal debugging of the game is working quite well.
PostFix Calculator Project?
Apr 2, 2015So I am working on a PostFix calculator that is used in command line for a class project, and I am having a little trouble on developing a memory for it. I have been told to create a hashMap and I have researched it and understand the basics of it. I have the calculating method working, but what I am having trouble trying to implement a way for the user to declare variables. For example this what the user should be able to do:
> a = 3 5 + 1 -
7
> bee = a 3 *
21
> a bee +
28
[code]....
I just need to be able to save the answers as a variable the User names, such as the example and let the user be able to use the variables later.
Strings And StringBuffer Project
Mar 5, 2015So, I've been working on a school project for a couple days, and I have my code written out but I can't fix the compile-time errors. The prompt for it is here:
Write two programs: one using the String class and one using the StringBuffer class. Your programs should store a set of Strings in an ArrayList and print those Strings in the order by which they are added. The output of your programs should create a complete sentence.
I am stuck on the first program.Here's my code for the first program:
Java Code:
import java.util.ArrayList;
public class SentenceNormal {
public static void main(String args[]) {
String n1 = "My ";
String n2 = "favorite ";
String n3 = "football ";
String n4 = "team ";
String n5 = "is ";
String n6 = "the ";
String n7 = "Seahawks";
[code]....