Software Development Forum

hello, Attempting to connect HSQL db by calling a config file from a java command line. However, receiving the following error message: Failed to retrieve connection info for database 'personal': Please set up authentication file 'C:\Documents and Settings\user\sqltool.rc' Here's a sample of the command: [CODE] java -jar \pathto\hsqldb.jar personal /pathto/Export_Data.sql …

I have a code that play's an animation on a JFrame.. On top of that, I have added a Jpanel with few buttons. my problem is, mybuttons are not visible on the animation screen until i hover a mouse on them?? what am i doing wrong..

Hi guys! I have started learning geometry and wrote a code to calculate the distance between a line(or a segment) and a point. Here is my code: [code] #include<stdio.h> #include<math.h> #include<stdlib.h> int dot_pdt(int a[],int b[],int c[]) { int ab[2],bc[2]; ab[0]=b[0]-a[0]; ab[1]=b[1]-a[1]; bc[0]=c[0]-b[0]; bc[1]=c[1]-b[1]; // printf("%d\n",(ab[0]*bc[0]+ab[1]*bc[1])); return (ab[0]*bc[0]+ab[1]*bc[1]); } int cross_pdt(int …

This is cited from Stroustrup third edition [CODE] void f () throw (x2 , x3 ) { // stuff } is equivalent to: void f () try { // stuff } catch (x2) {throw; } / / rethrow catch (x3) {throw; } / / rethrow catch (...) { std: :unexpected() …

hey, Just starting to learn how to use classes in c++ and when i try to split my class out of the main code and put it in a headder or a headder and a second source file dev C++ is giving me loads of errors and i dont know …

how to display the value of a variable using graphics in c or c++?

Hi, I am using the following code to send mail from a open window in maya application. This gives me following error. I think it says that A2 is not created. What is a possible way to have this code send a mail. BRgds, kNish # Error: name 'A2' is …

I am deleting a pointer using "delete" in C++. That pointer is holding the address which is used by OS like 0x00000210. What will happens?

I have time to complete this, I have to add 2 void functions, 2 value returning functions, 1 structure and on array. I just need some ideas on where to start, what should I convert to functions, how should I instill stuctures and arrays to this particular program. I'm going …

I made this code to make an object move by time here is the code for form1.cs: [code=csharp] using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Text; using System.Windows.Forms; namespace Project1 { public partial class Form1 : Form { public Form1() { InitializeComponent(); } // C# Code …

Hello everyone, I have a web browser which is used to display html files that are stored locally. However when I try to use the webBrowser.GoBack() method to navigate back to previous files nothing happens and the webbrowser window continues to display the current file. Does anyone know of a …

hi i am dipali i am trying to store multiple objects in file but it will store only one object with the help of read & write function plz tell me solution.

[code=cplusplus]#include <iostream> #include <string> using namespace std; char *goodmsg = " I feel fine today \n"; string badmsg = "I am not feeling well today \n" ; int main(){ //prototype definition void printMessage( bool ); //objects declaration bool isFine; bool &isGood = isFine; char *answer = 'y'; //while loop will …

Hi I'm was a c++ programmer for 7 years past with VC++ then go to Java and now return to c++ , I've search for VC++ and its seems big change now (VC++ Express Edition ) . I looking for free VC++6.0 or any other easy/free editor for c++ programming …

how can i access data that i have entered to the database in msflexgrid. like for example i have putting three categories the noofitem,scores, and totals. that was displayed on the top of msflexgrid horizontally..? is there anyone can help me... please...

Hi guys, I am doing multithreading in my C++ program. Now i seriously STUCK in my program.:confused: Ok, My program have 2 different base class, and each of the base class have a sub class, Example, subclass1 inherited from baseclass1, subclass2 inherited from baseclass2, HOW to make subclass1 and subclass2 …

Hi, I'm just starting out with programming in C++, and would like some clarification on something.. What is the meaning of the '&' in this line: [code=c++]void Stack::push(const StackElement & value);[/code] I would assume that it takes a reference as a parameter, however, why is it that it works when …

Hai all, I want to get to know about the file summary like last saved by, last printed on, authour etc... How can get it using file info function. Thanks in advance.

i using acsess 2003 or xp. but when i click in record source property to show the table a massage was shown. but when i use office 97 then there was no problem

thank u.

I trying to take an image file which is present in some folder of local machine and trying to load it inside a server. If i give the path its trying to access the server path,not the local machine's path where the actual file is present, this works fine when …

i using getopts but when i type in the argument it not working. Is there anything wrong wif my script? bcos when i enter bash filename -P -S , i should see "hello" msg but i don. [CODE]#!/bin/bash while getopts "PS" opt; do if [ $# -eq 2 ]; then …

Hello ya'll, I stumbled over here looking for some help with Bash shell scripts.. See, the problem was I needed to copy a data DVD into (onto?) the system file space. Since this is a virtual machine, copying a DVD takes a very long time, the drive gets hot, starts …

Hello All. I am quite new to programming, I have a question in regards to creating a script that reads data from a file and then prints how many time each value ( number in my case occurs). I was wondering if you could help me write a similar script, …

is there any simple way to do this? im making a chat client and i want it to display text like all chat clients do, which is buttom to top. Thanks!

Script to Remove duplicate lines from a text file.

So i am trying making a simple calculator in pascal but i am having trouble adding fractions. Like for example i am trying to add 1.5 and 1 so the result should be 2.5 but the output i get is something like 2.5000000e+00 something like that. How can i change …

I would eventually like to get into writing my own very simple command line OS but I am looking for maybe somewhere to start. I know C++ but I am not an expert at it and I was wondering if someone could point me in the right direction to getting …

Hello all, First post here, I'll try to make it understandable heh. I have a question concerning object creation. Let's say I have a class called Node and I want to create an object called myNode. What's the difference between: [code=c++] Node * myNode = new Node(); Node myNode; // …

I want to make a simple application which its databse is on another PC in my LAN,What do I need to do to make such connection? I can make connections on the local PC.What do need to do to make a remote one? I want the exact syntax of the …

I've been searching for a memory leak detection tool for windows, something similar to valgrind under Linux, but all tools that i find cost, or just have free trials. Does anyone know a FREE memory leak detection tool for windows ?

Hi All Im working on an exercise from a book im learning java with. It is a console app, i have to make a menu 1-4 and then evaluate what number the user entered, carry out the command and then return to the menu. My problem is that i tried …

For a challenge, we have to code a script that can pull information from a web page and then use it to automate an action on that site. What I've chosen to try and do is code an IPB Forum Advertiser. The process is easy, but I can't seem to …

[CODE=cpp] #include <windows.h> #include <iostream> #include "resource.h" #include "Main.h" HWND hWnd, hwScreen; CCalc szCalc; LRESULT CALLBACK MainDlgProc( HWND hDlg, UINT Msg, WPARAM wParam, LPARAM lParam ); int WINAPI WinMain( HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nShowCmd ) { DialogBox( hInstance, MAKEINTRESOURCE(IDD_MAIN), hWnd, (DLGPROC)MainDlgProc ); return 0; } LRESULT CALLBACK …

I was reviewing some material over pointers in a book called [U]C++ Primer[/U] [I]4th Edition[/I] and it said there were four possible values that you can set to a pointer. [LIST=1] [*]A constant expression with a value of 0 [*]An address of an object of an appropriate type [*]The address …

Hi all Is it possible to trap the ESC key during the execution of an mdi form? I want the esc key to be trapped and when it is pressed I want the current form to be unloaded. Is it possible? Any help will be appreciated. Rajesh Khanna

how do we read the memory at a particular address of a particular device. for example if i have floppy and usb plugged into my system and i want to read the information present at a particular address in usb then how i will do this???

hi all, I want to do and (&) operator betwneen 2 string, 2 number, 2binary and there is an error displayed when i do that, the error is: operator & cannot be applied to operands of type string and string (binary and binary), (integer and integer), How I can Solve …

can someone convert this c++ code to C# code... I'm very new to C# pls help the main.cpp [code=cplusplus]// Main Program // #include "square.h" // Derived Class square int main() { //******************************************************************************* cout << "\t\t\t+y"; cout << "\n\t\t\t +"; cout << "\n\t\t\t +" << "\tpoint a" << "\t\t\t\tpoint b"; cout …

Hi all, I have encountered a peculiar problem when performing some simple arithmetic in a program I am developing. As the function of the program is pretty specific to my field I have included a smaller program which illustrates the same problem without the technicalities. Given a function (in the …

If you were creating a graphic design drawing program for creating small images like 32x32 pixels but the windows was like 600x400. How would you create it so it could have more of a zoomed in vision of the 32x32 image so you could draw on it pixel by pixel …

Hi, I'm reading Programming Windows Fifth Edition by Charles Petzold. In the part I'm reading, it talks about GDI functions. I'm trying to get the pixels that are 1 to 100 + the mouse x coordinate and the y coorinate, then draw them on my window. It's hard to explain. …

Hi everyone. Here is a program I made which will find patterns in a list of primes. It does this by finding the difference between each prime and adding them to a vector like this: [CODE] Primes: 2 3 5 7 11 13 ^ ^ ^ ^ ^ Difference: 1 …

Just wanted to know, I'm just doing a little dice rolling thing thats storing dice values according to how many times they come up every so often, just wondering if instead of making 50 lines of code doing if(sum==1) { ones+=1; } else if(sum==2) {... and so on, I'm thinking …

Hello, I am trying to retrieve data from my MS Access table but keep getting a "Syntax Error on the FROM statement" error. I was hoping someone could lead me in the correct direction in resolving this error. Particulars of the VB program: I am trying to create a "Control …

I am running a thread that does something, then sleeps for a while. If the program closes it continues to sleep to completion. How do I get it to abort immediatly, even if in the middle of sleeping? [CODE]void commThread::ThreadEntryPoint1() { while(1) { //do work Sleep(15000); //15 second sleep } …

Hallo everybody. I am a student trying to extend my knowledge in cPP while using UML and system modelling. I created a "vector template class" using the rhapsody system modeling tool for storing different data types. I used the template to store int and float data types successfully using either …

how are graphic's API's created such as DirectX and OpenGL. And is using GDI which is the graphic portion of the winapi, a graphic API itself? or are you able to create your own with C++ for 2D rendering instead of using anyone elses. Or does writing an API involve …

I need to choose a value from a combo box and check if that exists in a table and if it does..i need to make a button glow green.. I am not sure how I have to check if the chosen value exists in that table.. can you please help …

the code worked perfect on Friday and when I come back today and try.. the RAM alone works fine in the T-SQL but the Mfg, Make, GraphicsCard and GraphicsVersion do not work atall.. they dont give me any queries atall in the data grid view o/p.. why am i stuck …