Software Development Forum

will anybody please tell me which is the best book for J2E?

Hi, I generated 10 random numbers ranging from 0 to maxrange to find out the running total to work out the fitness of each chromosome. Then I generated 10 more random numbers which range from 0 to the maximum of running total. The second set of 10 random numbers are …

Hi I'm just trying to create an appliation in java that can hold my expenses and save it to review every month or end of the year.The problem with it is how can i hold the data of everyday expense into it.this could be with help of oracle or MS …

hi i need sum help for 1. login page in vb.net 2. i can not connect with mysql database thank for help

ok so basically I am writing a small program that does a few different things in Delphi 2007. I am very new to coding and so I hope that my terminology will be up to par. If not, please forgive me. I am loading text files into a ListView... I …

I am writing a program that calls system( "c:\pathtofile.exe" ) to launch another program. Does anybody have a suggestionon how to make it so the console window doesn't show up.

In the following code, the object is not being written into file in line 30 [ICODE]stfile.write((char*)this,sizeof(item));[/ICODE] When line 26 :[ICODE]stfile.read((char*)&ob,sizeof(item));[/ICODE] is hidden the object is written into the file. Please help!!! [CODE=C++] fstream stfile; class item { int code; char name[25]; int price; int qty; public: int getcode() { return …

HI, if i have something like this [CODE]char string[16]; std::cin>>string;[/CODE] and i type something and press "Enter" then [ICODE]std::cin[/ICODE]would terminate, how do i get it to terminate when my first key input is "Enter" ? because normally if i do that , input will not terminate and i will only …

Dear Friends, I am developing a small project in which the users have to fill a form from which it will be saved into a database. Here i wanted to scan a particular folder in the hard-drive contineously so as to know if there is any new file saved in …

Hi I am trying to develop a project in Java as per the following requirements: 1. I need to store fingerprints in The oracle database, taken by any fingerprint scanner. 2. I need to access data using fingerprint matching process. 3. I donot know how to match the patterns using …

Hello Experts I am trying to parse a dbx file . But I won't be able to find the attachment offset,embeded's image offset, mail's offset,mail's size etc. If abybody know DBX file structure ,then please tell me .Its urgent. Thanks Kind Regards vikas

Hi all, I've created two columns on the list view as follows. [CODE] ColumnHeader colHed; // Header one colHed = new ColumnHeader(); colHed.Text = "Name"; colHed.Width = 100; this.lwDetails.Columns.Add(colHed); // Header two colHed = new ColumnHeader(); colHed.Text = "Address"; colHed.Width = 200; this.lwDetails.Columns.Add(colHed); [/CODE] Then on a separate function I …

I am able to Validate for 9.1 decimal Validation by regex expression "[0-9]\{0,9\}\.[0-9]?$" but If I call in KeyPress last character entered cannot be in textBoxVariable.text. Qusetion : I want to do e.handle=true; for keypress , if textBoxVariable.text Value not satisfy regex condition. Any solution? Thanks in advance

Hi, I want to make some kind of monitor for my PC and i want to have CPU load in form like "top" (something% , ex 23%). So i use C and : i'm opening the file /proc/stat and read the first line : cpu 92208 2282668 19432 79824 739 …

Hello,I am doing a project in which i need to send and receive data from a microcontroller.I was trying to do this in DEV CPP IDE 4.9.9.2 but couldn't succeed till now.The following is the code i tried compiling. The code: [code] #include <bios.h> #include <conio.h> #define COM1 0 #define …

Hello World! (to all of you DaniWeb guys!) I want to build 3D Online Chat but I don't know how to start. Does anyone can tell me how to send message between 2 PC? (An output of this message I want to show in 3D character's shout box.) Right now …

hey i have that singleton code in java but how can i check that it have an instance only? [CODE] class singleton { private static singleton instance; private singleton() { } public static singleton getInstance() { if (instance == null){ instance = new singleton(); } return instance; } } [/CODE] …

How to convert this algo into c++? [CODE]while 9more students) read studentID countexam =0 while(more examination) read exam code ExamID = GetExamID (examcode) Incerement Count exam examlist[count exam]=ExamID; endwhile for (i=1,to CountExam-1) do for (j=i to CountExam) do if (i!=j) Inceremnt conflict value of row exam List[i] and column Examlist[j] …

Hi, I have an existing .ocx file which contains a map. I need to open this file in C++ and not in MFC. MSDN help suggested me that it can be done throuch " #import "file_name" " However, the description is not descriptive and helpful. If anyone can provide me …

Hi guys I am trying to implement golden section search method to obtain n-th root of any number.I am testing it by finding the square root of 25 in range [4,6].the function to minimise is:[B]x^2-25.[/B] [CODE]#include<iostream> #include<cmath> using namespace std; int fnc(float &,float &); float n,num; int main() { float …

how can i view the database value in the table which was designed by me instead of using datagrid, i must get the datbase value in that... say in a table i av, name,age,number,dept even in de table i av same number of rows and colums.. how can i retrive …

I have been writing my program and everything works like it should unless the user inserts a character then the whole thing blows up... how can I fix this. Is there something I can add to block characters from being added? any help would be appreciated! here is my code: …

Hi. I've written a small static (Unix .a) library, as usual made from a bunch of .c and .h files. A lot of the functions in the .h files are internal to the final library. Only a few of the .h files containing the public interface. How can I hide …

Hi, I am trying to create a method that accepts a pointer to a (static) string so that it can modify the string. I have something similar to this: [code] void modifyString(char **pstr) { char *str = *pstr; // Make changes to str ... } void doSomething() { char str[] …

can anybody give me the cocept of 2d n 3d arrays in c++ i will be very thankful.i am using this type of site 4 da first time but i m sure it will be good.

Hey, I am trying to implement a ctrl + x to close my program when the user clicks on the exit menu item or hits ctrl + x, but so far it is unresponsive, here is my code: [CODE=java] package main; import javax.swing.*; import java.awt.*; import java.awt.event.*; import testing.Intro; public …

Hi. Do you know how to get and set cursor position in C language? I know this can be done using GetCursorPos and SetCursorPos from Win32 Api but I want it to work on several OS so I cant use Win32 specific functions. Thanks.

I need to query a database on a server. As a first step, I have written the following Java code to just make sure I can access the database. I thought that the Try-Catch blocks would take care of the exception problem, but apparently they do not because when I …

when user enters data it will save and i can add/edit data throughout the instance of my main form. when i close out of it and open it again there is nothing there main form to open add form: private void AddGamerTag_Click(object sender, EventArgs e) { NewGamerTag myGamerTag = new …

i am new to programming.. i am now facing a prolem on how to turn the value in the combo box by automatically by using visual c++ 6. let's say the value in the combo box is 5, after i click a button, the value will increase to 10, 15 …

Greetings!!! I need help in calculating the difference between 2 dates (the result should be like "1 year, 2 months and 15 days"). I am building an application for my team to show their tenure in the organization (LIVE TENURE FROM THE DATE OF HIRE TILL NOW). I have the …

when i start my program i write import graphics * def main(): but then when i try to create a button it doesn't work anyone know the problem??thanks

hey i am new in java and i need help for a project of scool i need a program in wich i form a matrix and the numbers in it will form like this 1 but there is a problem the o must not be there only the 1 o …

Hello, I have to create a double linked list array of pointers for the alphabet (one pointer per letter). Ok, so I tried starting by creating a double linked list: [code] struct word{ string newWord; word *next; word *back; }; struct wordList{ word *head; }; [/code] And then array of …

can someone explain this to me... coz i cant understand.. im trying to this one but i cant do it. Implement and test this method: static double max(double[] x) { // returns the maximum of the elements in the array x

hi, im having problems with my password textfield. for instance, my password is "default", and when i start typing in letter "d", the letter "d" is being displayed first before turning it into an asterisk. i was thinking if it is possible to make my entry entirely in an asterisk …

if this topic is already up pleas point me to it coz i dont even know how to search it.... what i want to do is a small screen in the big screen and have all my printf(""); to print there... i dont know what else to say so pleas …

can someone help me regarding my program? i am tasked to create a program called string censoring. it asks for two strings then it removes the characters in the first string which are similar to those in the second. Ex: 1st string= new york yankees 2nd string= absolutely result= nw …

I am just beginning in a C++ class and I am having a hard time setting up the code for using a modulus operator. The problem assigned has user input as name and hours worked. The program is to output the name, weeks worked, days worked, and hours worked based …

Hello guys, I have been working for a long time a project in vb.net using a database which is in SQL Server 2000.I am currently trying to upload an image!The file i want to upload is not type image but nvarchar.I have made save it inthe database as ID of …

Hello everyone. I have this problem recently when I change my OS from winxp to suse linux 10.2. I want to run my visual basic 6 in suse but I have no idea how to do it. Is suse is capable of running vb6? If not, is there any options …

Can anybody help? I have modified an original Visual Basic project to convert from set of binary code into a readable format. I am unsure of the actual type of code that the data file ("Mazatrol.dat") contains. I need to be able to convert it into a language, from binary, …

is there a way for me to write OOP programs in c++ for Texas Instruments TI 89 graphic calculator?

Hai, I write a simulation and need to set the time for running the simulation. the simulation should stop based on the time that heve been set .How to set start time, get the current time and lastly to get the total time of java running program? really hope u …

Hi folks. I decided to learn a functional language in order to increase my programming knowledge and was advised to learn Haskell. I didn't find any useful books, so one of my friends (former software engineering student) gave me his class notes, including tons of exercises. However, he claimed he …

Dear all In advance, thank you for your help. I am trying to initialize an object in C++ depending on certain parameter. Below is the source code I am using. if(ARG::metrn==metrnSMD) EventStream<complex<Lambda>> evstrTrain(fileTrain, evlsTrain); else EventStream<Lambda> evstrTrain(fileTrain, evlsTrain); if (ARG::FRandomEventOrder()) evstrTrain.SetRandomOrder(true); I am declaring and calling the constructor for 'evstrTrain' …

this is my code to convert characters into its decimal form...it is working and the next step is to convert the decimal form to its binary form...how can i do that....???? [CODE]#include<iostream> #include<conio.h> using namespace std; void input(); void process(); int main() { input(); system("PAUSE"); } void input() { string …

Hi, I have a project that I’ve been trying to do for months and months on my own, but it has got to the point where I can’t carry on because I’m so stuck, and all the tuts I try to follow don’t work for what I need. I am …

I have the following code which is working properly, what I'm looking to do is add an additional function to it, but I'm getting stuck. What I need to do is add a function to my class called DigitalTime::interval_since(const DigitalTime& a_previous_time, int& hours_in_interval, int& minutes_in_interval) What this function does is …

Hello, I am still working on the self study thing. I have decided to do or attempt to do a project that requires a header files with 2 other source files. The header file was given in the book. It is as follows: #ifndef GOLF_H_ #define GOLF_H_ //golf.h -- for …