I have next to no programming experience, and absolutely none with Java, so I'm looking for some good online tutorials/primers. Please point me to good ones for beginners like me.
Thanks.
Hi! all,
I am writing an application which is a kinda video streamer.The client is receiving a video stream using udp socket.Now as I am receiving the stream I want to play it simultaneous.It is different from playing local video file lying in your hard disk in which case it can be as simple as running the file using system("vlc filename").But here many issues are involved like there can be delay in receiving and player will have to wait for the incoming data.I have come to know about using vlc to run a video stream.Can you please elaborate the step for playing the stream using vlc.I am implementing my application in c++.
EDIT: Can somebody give me some idea regarding VLC API which can be used to stream a given video to particular destination and receive that stream at other end play it.
with regards,
Mawia
I'm coming from an XHTML/CSS background. I don't know much about JavaScript. Would you recommend learning JavaScript before learning a server programming language?
Hi there ,
i always asked myself. Why are there so many DB management systems?
I am not an DB expert and i never thought about using another DB than mysql.
Programming languages offer different paradigms, so there it makes sense to choose a specific language for your purpose.
What are factors to choose a specific DB management system ?
Problem
I send the message "12345" from the socket server to the client:
myPrintWriter.println("12345");
After that I read this message on client:
int c;
while ((c = inputStream.read( )) != -1)
{
byte[] buffer2 = new byte[1];
buffer2[0] = (byte) c;
String symbol = new String(buffer2 , "UTF-8");
String symbolCode = Integer.toString((int)buffer2[0]);
Log.v(symbol, symbolCode);
}
Log.v("c == -1", "Disconnected");
What I see in log:
With
out.println("abcrefg");
Why? I think it's line termination symbol. I need to get string "12345" or any other and next strings correctly. Help me please.
I want to improve my design and programming skills by understanding design & code of open source projects. I downloaded hadoop,groovy but they are very difficult to follow. I am not having a clue of how to follow this code without having a high level overview of the design. Any suggestions??
Thank you.
I have read lots of programmers saying and writing when programming in C/C++ there are lots of issue related to memory. I am planning to learn to program in C/C++. I have beginner knowledge of C/C++ and I want to see some short sample why C/C++ can have issues with memory management. Please Provide some samples.
Hi all
I have followed the instructions on the Android website on how to download the latest android source code files but it gives errors when i run this command:
repo init -u git://android2.git.kernel.org/platform/manifest.git
It gives the following error:
Getting repo ...
from git://android.git.kernel.org/tools/repo.git
android.git.kernel.org[0: 199.6.1.176]: errno=Connection refused
android.git.kernel.org[0: 130.239.17.12]: errno=Connection refused
fatal: unable to connect a socket (Connection refused)
On checking forums for its resolution, i was told that port 9418 was being blocked.
I use Ubuntu 10.04 and ensured that the firewall wasnt blocking the port and also enabled the port and the above IP addresses.
I also spoke to the networking peeps who ensured that no traffic from the internet is being blocked.
I would be glad if i could get directions on how to proceed next.
Many thanks as you respond.
Saheed.
Hi,
since moving to Windows 7 (IIS 7.5), the debug assertions do not prompt a pop up dialog anymore.
I have tested this in a separate project, and noticed that they do work when using the integrated Visual Studio Developer server (Cassini) but they do not work when using IIS Web Server.
This is a big issue for us since we are counting on debug assertions to identify potential programming errors, so any help would be appreciated.
Thanks. Eyal.
Hi,
a colleague and I are trying pair programming for the first time. We both remote into a development machine; I'm using RemoteDesktop and my colleague is using UltraVNC. This works great except that he can't see the Intellisense dropdown in Visual Studio 2008. According to online posts, this may be something to do with DirectDraw, but I don't see much by way of a workaround.
Has anyone else experienced this?
Thanks,
Andrew
This has got to be a FAQ, so can someone please just direct me to a "network programming for dummies" URL?
The server wants to push information to a client or broadcast to all, when an event happens - as opposed to the clients constantly polling the server "just in case". The client then updates a browser page display.
How do I do that? (toldya it was a n00b question)
Should I have a thread which receives info on a socket and then writes it to a database which the browser display (PHP) can process with an HTML refresh tag, or what?
Sorry to sound so dumb.
Please give me some titles, preferably not free books.
I don't need it to be free; it would be better if published by McGraw Hill, Prentice-Hall, Springer, or any other good publisher.
Note that I'm interested here in programming with C++ only.
[Queston asked in ML Interview]
Design an server/application which handle multiple incoming stock information ( stock symbol and values ) Server need to store the information in some cache ( need to design the data structure ), There are multiple client connected to server using tcp/ip socket. They will subscribe to particular request say stock symbol XYZ , and may be for more then one. As and when there is change the stock symbol server should broadcast the information to subscribed client. If tcp/ip write failed, server should handle the unregistration of the client.
What various data structures will be used and how threading model will be ?
New to programming, I am trying to graph the following Gaussian function in Matlab (should graph in 3 dimensions) but am making some mistakes somewhere. What is wrong?
sigma = 1
for i = 1:20
for j = 1:20
z(i,j) = (1/(2*pi*sigma^2))*exp(-(i^2+j^2)/(2*sigma^2));
end
end
surf(z)
Hello,
I want a framework (or anything) that helps me make rich client guis. I know my server-side, but I don't like programming in ajax, javascript, css etc.
Something that wraps the ajax code in some objects/methods with clean syntax, would do the trick. I want to write code in java instead of defining css and html tags.
Does Java Spring, JSF, Django support this ?
Languages: Java, Python
Thank you
I've been tasked with providing a workshop for my co-workers to teach them Django.
They're all good programmers but they've never done any web programming.
I was thinking to just go through the Django tutorial with them, but are there things in there that wouldn't make sense to non-web programmers?
Do they need any kind of webdev background first? Any thoughts on a good way to provide the basics so that Django will make sense?
Please share and vote for the best!
Please do not close this. This is a subjective question, but is programming related and can be beneficial to people.
Hi. I have a TCP Server application that serves each client in a new thread using POSIX Threads and C++.
The server calls "listen" on its socket and when a client connects, it makes a new object of class Client. The new object runs in its own thread and processes the client's requests.
When a client disconnects, i want some way to tell my main() thread that this thread is done, and main() can delete this object and log something like "Client disconnected".
My question is, how do i tell to the main thread, that a thread is done ?
There are two connected sockets. How can I interconnect them?
Data appeared on the one socket should be written to the other.
EOF/FIN should propogate well. If one is half-closed, the other should also be half-closed.
int client = get_connected_client_socket();
int proxy = get_connected_proxy_socket();
negotiate_with_proxy(proxy);
iterconnect(client, proxy);
// Now forgot about both client and proxy.
// System should handle IO/shutdown/close.
// Ideally even without any support of the user-space process.
Can Linux do it? Can it be done by tricking connection tracking to change tracking status of existing connection?
@related http://stackoverflow.com/questions/2673975/determine-how-much-can-i-write-into-a-filehandle-copying-data-from-one-fh-to-the
What is the meaning of "parallel software" and what are the differences between "parallel software" and "regular software"?
What are its advantages and disadvantages?
Does writing "parallel software" require a specific hardware or programming language ?
How to explain CSS Float in general language (not Programming) ? Is there any real life example to take a example to explain CSS Float?
Is there any Slideshow in very simple way to explain float?
Why are there so many Database management systems? I am not an DB expert and I've never thought about using another Database other than mySQL.
Programming languages offer different paradigms, so it makes sense to choose a specific language for your purpose.
Question
What are the factors in choosing a specific Database management system ?
I'm currently learning the fascinating J programming language, but one thing I have not been able to figure out is how to filter a list.
Suppose I have the arbitrary list 3 2 2 7 7 2 9 and I want to remove the 2s but leave everything else unchanged, i.e., my result would be 3 7 7 9. How on earth do I do this?
I've been playing around with the Reactive Extension for a little while now, but mostly limited to handling/composing user driven events within a WPF frontend.
It's such a powerful, new way of doing async programming, and I'm curious as to what other people are doing with it, and where do you think it might be able to improve the way we're currently doing things?