190 Topics
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| | What is the way that need to be implemented in java to make a server broadcasts a voice to multiple clients, instead of broadcast voice only to one client? for example I am doing a server which can broadcast voice to multiple clients at the same time, now my server … |
| | Hello all I am writing a solicitor allocation application that will be used by multiple users at one time. Because of this, the database needs to be updated with every change. This is my code when a solicitor is chosen for allocation: private void FindSolicitor(int type, bool stype) { table … |
| | public class Thread7 implements Runnable { public static void main(String r[]) { Thread t = new Thread(new Thread7()); t.start(); public void run() { System.out.println("C"); System.out.println("D"); } System.out.println("A"); try { t.join(); System.out.println("B"); } catch(Exception e){} } } Query1: On compiling this program I get "illegal start of expression" error pointing to … |
| | If a child process encounters exit(0) statement, where is this exit status returned in the parent process? Is there any variable associated with every process that holds this information? If not, how do children and parent processes communicate? |
| | Can somone please explain to me what does fork() != 0 mean? From what I understand I think it means if fork is not false? Or if fork is true then.... I dont understand how Fork() can be true or false, seeing that it just creates a copy of a …  |
 | Hi guys, So I'm busy writing an application that needs to update a list from the web after a certain amount of time. main.py file class Gui: def ...... def ...... def ...... def on_update_click(): update() app=Gui() Gtk.main() So when the program loads up, user will click the update button … |
| | Being on a core i5 sandybridge mobile processor, I have the option to have dual core, hyperthreading, or both enabled. Which should be disabled to lengthen the battery life and still have decent performance?  |
| | Hi there, I have a piece of code that I made to handle the joining of 'characters' in to a 'raid' on a game. The program refreshes a page to check if the 'raid' is available, if it is, it 'forms' the raid and 'joins' the characters. The joining process … |
 | So awhile back I came here asking for help trying to read in data from a webpage, more specifically the HTML. I was running into an issue where the data wasn't actually being read (as if it hadn't loaded in). I had to put the program aside for awhile as … |
| | Hey Guys i am doing a small project and i am using vb.net with MS access database. i am facing a Concurrency issue sometimes when i try to save data in the datagried view. i have added the datagried view by draging and drop the table from the data source. … |
| | So, my problem is that I want to run a process every 5 minutes, however I also want a console input which can modify its preferences and call functions depending console input. How can this be done system-independently?  |
| | Hey Guys i am doing a small project and i am using vb.net with MS access database. i am facing a Concurrency issue sometimes when i try to save data in the datagried view. i have added the datagried view by draging and drop the table from the data source. … |
| | Hey all, I was hoping I could get some advice on designing the proper threading for our project. A little background info - our company does simulators of complex electrical/mechanical systems. These simulators could have fuel systems, electrical systems, pneumatic pressure systems, etc. I suppose you can just think of … |
 | what does fork() do in c.? Is it same as fork operation in OS ? What is the o/p of following program ? #include<stdio.h> main() { int i=0; fork(); printf("%d",i++); fork(); printf("%d",i++); fork(); wait(); } |
| | I have developed an application that loaded many images in a listview using ImageList in c# .net framework 4. The images are also compressed. When many many images are loaded and compressed then it takes a long time. So I call the method in backgroundworker. In the backgroundworker I had … |
| | there are three methods called in a backgroundworker_dowork() event in c# .net 4. I want to execute three methods synchronously. that is, 2nd method will execute after 1st method is fully executed and 3rd method will execute when 2nd method is fully executed. because 2nd method can exetue properly only …  |
| | [CODE]/* * To change this template, choose Tools | Templates * and open the template in the editor. */ /* * MainMenu.java * * Created on Feb 22, 2012, 7:28:37 PM */ package f1carracing; import java.awt.Color; import java.awt.Graphics; import java.awt.Image; import javax.swing.Icon; import javax.swing.ImageIcon; import javax.swing.JOptionPane; /** * * @author … |
| | You cannot vote on your own post 0 I have loaded many images in a listview using ImageList in c#. When many many images are loaded then it takes a long time. So I call the method in backgroundworker. In the backgroundworker I had to add images to ImageList and … |
| | Hi, I have a MDIParent and forms that i want to show as child. But because each individual child performs heavy tasks I want each child to have it's own thread. here's what I am trying to do... [CODE] void showStartPage() { Form1 p = new Form1(); p.MdiParent = this; … |
 | Hey guys, I am playing with the .NET 4.0's new class Parallel. I tried to open files in a directory and calculate the total bytes of them. However when I run the code, I get a different result every time. Can you explain me the problem I have? [CODE]using System; … |
 | Hi all, I am looking to have a long process running in the background to my main form with a timer ticking on the main form animating the elipsis on the end of some text. Was looking for some insight into the best way to go about this and any … |
| | I have a project that requires us to perform matrix multiplication via multi-threading, using the Windows API. I've got the basic code running and everything is well under sane/ideal conditions. But if my input matrices go beyond 10x10 the program ends up failing on WaitOnMultipleObjects(...) and runs the main thread … |
| | I want to learn multithreading in C++. somewhere on internet I got a piece of code using popen() function of stdio.h. I just wanted to know that if this function helps in creating the new threads or it doesn't come under multithreading. Please guide me in multithreading.  |
| | Hello... I'm working on an application that contains a "BackgroundWorker", the "BackgroundWorker" worked fine but after I started to change some stuff it gives me an error ("Exception has been thrown by the target of an invocation.")... I used a breakpoint to see where it happens, the exception gets thrown … |
| | I'm trying to do some socket programming in java. what i have is, i've written this program to create a server and client on my local machine and make separate two threads for socket input and out put in [B]Se.java[/B] file. Similarly two separate threads for socket input and output …  |
| | I was asked to write a program, based on parent-child cooperation, which uses a “parallel” merge sort to a sequence of 800 numbers from a text file.I have to read the sequence of 800 integers, which I store in an array, and then pass half of them to a child, … |
 | I am trying to create a a splash screen... I have attached the image file..please have a look.. the splash screen performs a diagnostic procedure and displayed the results in a multi-line label.. I have used another thread to write msgs as results in label.. and its working as it … |
 | I am designing an application which communicates with another device via a serial port. My application buffers the received binary data until the data is valid/of known format, does some processing and then writes back a response. I understand this model is known as the consumer/producer model. The issue I … |
| | Hey everyone. I have recently decided to try and learn how to use java Sockets for client/server communication, as well as swing and threads, etc. and have (pretty much) completed a small client server application. The application is basically a syntax-highlighting notepad, a client swing GUI which connects to a … |
| | hi, how can i pervent from crontab concurrent run ??? thats mean when my crontab Take too long , with this crontab another crontab not runs... please help me ... best regards, amir  |
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