Software Development Forum

Hi in this program i want it to run for 720 loops but it keeps stoping short for some reason. There is no compilation error or runtime error. [CODE]import java.util.LinkedList; import java.util.Random; public class Simulation { private LinkedList<Customer> customerList; private int minutesThatHavePast; private int customerNumber; private int customerProcessTime; private int …

Hi all, i'm developing a web-base system.user enter the data in mysql.my main system retrieve the data using jdbc.my problem is, i dont know how to make the system keep on checking the new data in database.i want it always check the mysql for any new data. i need your …

This list box will contain the name of processes that are currently running. My function to update the list first checks to see if it does not contain the name of a process that is running, then adds the process if it needs to. Then it checks to see if …

Doing an assignment to create a struct that holds keywords and then is used with a binary search to counter the total keywords in a program. Below is my code and below it is the errors i get when I attempt to compile it. First question is what is wrong …

All, This is driving me crazy. How come only the last thing I send to a textbox is displayed? In the following example I would expect 'abcdefghi' to be displayed then, 1 second later, '123456789' should be displayed. But the only thing I see is 123456789. What is going on …

Is it ever acceptable to make instance variables public? If so, when?

Can somebody explain to me why every time i subtract currency it displays the negative sign, even if the number used to subtract was small. for example: $ 5.00 - $ 3.00 = $ -2.00

Whats up guys? This program has given me nightmares lol. When input is a positive integer, the program should reduce it to prime factors. The integer is less than 900. The program should Output the prime factors as a series that when multiplied together, will return the original integer. If …

Hi friends! What is the difference between these two definitions of variables? [CODE]const char *msg; char* const msg;[/CODE] thanks in advance)

Hello Members, I am trying to add weights to a Graph that is implemented using JGrapht. I keep getting a NullPointerException, which I am unable to understand as all other edges seems to be added fine. I would be grateful for any help. The code so far: [CODE]import org.jgrapht.*; import …

hi,I am trying to write a simple code that visit page every x seconds.I prefer timer function because thread freeze the browser and the program.Somebody whit idea?

hello frndzz... just wrote a piece of code in c++....bt this didnt create any .DAT file as expected.....dun knw wats wrng.... #include<fstream> #include<iostream> using namespace std; class person { int age; char name[40]; public: void get() { cout<<"enter age:"; cin>>age; cout<<"enter name:"; cin>>name; } void show() { cout<<"age is:"<<age<<endl; cout<<"name …

okay i've got a problem with this code its going to be a apart of a word guessing game, the problem is that my code reads the file i want it too, but when i ttry to guess the letter it will only read the first letter, i know that …

hi can anyone tell me why the netbeans ide generates a null pointer exception. here my code. for class CustomFileFilter [CODE]import java.io.File; public class CustomFileFilter extends javax.swing.filechooser.FileFilter { private String extension; private String description; public void setDescription(String description) { this.description = description; } public void setExtension(String extension) { this.extension = …

I am currently writing a program in which you input a word and the program then outputs all of the different ways the characters can be moved round into anagrams. I have wrote a way of turning the command line argument into a char array using the toCharArray() now I …

Hello, im a noob with C++ at the moment and Im trying to create a BMP image from pixel data stored in a array. Everything seems to work except that when i look at the file generated in a hex editor i get an extra '00 00' in between the …

Hey everyone!! I am having trouble printing the whole of a multidimensional char array. [CODE] #include <iostream> using namespace std; int main(){ char array [5][10] = {"---------", "| |", "| |", "---------"}; cout << array << endl; system ("pause"); return 0; } [/CODE] It just gives me random numbers and …

Hi mates!) If somebody can - please explain me - what does mean "[U]the lowest[/U]" in this context - [QUOTE]The open() function shall return a file descriptor for the named file that is [B][U]the lowest[/U][/B] file descriptor not currently open for that process.[/QUOTE] the QUOTE is from here - [URL="http://pubs.opengroup.org/onlinepubs/009695399/functions/open.html"]http://pubs.opengroup.org/onlinepubs/[/URL] …

Hey I am trying to do a project on Test Engine. I need to retrieve random rows of questions from access database. I did the following code, but every time I once close and run it again, the sequence of questions is same. How can I change the sequence every …

hi, I have the following code and it compiles on Netbeans with no errors or warnings but when I load the applet in a browser the browser does not display all of the pictures that I got it to draw. The only picture it draws is my_gif. I have tried …

hey all i want to put [B]£[/B] symbol in my textbox but don't have it on keyboard can any one help me? Thanks

I'm working on a simple program, but I help with a part of it. When I click the submit button I need the name field to be cleared and for all of the checkbox to be unchecked. I have the name field done, but I need help with unchecking all …

Can anyone clear my concepts of IsDaylightSavingTime() function of DateTime in C#. I am really confused about it. I want to ask exactly what is the need and use of this function? Thanx

Hi guys im trying to generate 5 random numbers that return a string so i can compare it to a file. so far i have this but i have no idea how to make it a string. Since i have to compare it to the file i mentioned earlier. This …

hello I have added a checkbox column in my C1TrueDBGrid i want to check all of the checkboxes with single click i have been looking for a solution i found one for DataGridView which is to add a check box in the header of column and check all of the …

Hi! For the past few months I've been self-learning C++ with the book "C++ Primer Plus" by Stephen Prata. After having gotten through chapter 7, I decided to check my progress by writing a little program, Baztro. Baztro stands for Basic Astrology Tool. It asks you for birthdate(s) and will …

hey all can any one tell me how to insert a checkbox column in C1TrueDBGrid it is really showing me hell I am stuck in it.. Please please any one help Thanks

Hi All, I try to store Korean langguage in Microsoft jet OLEDB 4.0 database, but I cant retrive it back. [CODE]catNewDB.Create("Provider=Microsoft.Jet.OLEDB.4.0;" & _ "Data Source=" & sDatabaseToCreate & _ ";Jet OLEDB:Engine Type=5;")[/CODE] I try to google around for weeks..but still cant find the solution, I believe microsoft jet 4.0 should …

hi, i would like to create an uniqueID where it must add +1 behind the CurrentTranxDateTime for the transaction 1 to 10....I have coded as below but the problem is the number doesnt +1 for each transaction.....any1 have idea to solve this..... eg: 300111 01:45:29 AM 1 300111 01:45:29 AM …

The program below crashes anytime I run it, can anyone tell what I have done wrong?. [CODE] #include <iostream> #include <cstring> using namespace std; class Human { private: char *fname; char *srname; char *phone; public: char * getFirstName(); char * getLastName(); char * getPhone(); Human(char *fn, char *sn, char *ph); …

Good afternoon, I'm trying to alter an application that calculates the area of a square using the following guidelines: For the Square class: 1) Add a Private variable named _area 2) Associate the _area variable with a Property procedure called Area 3) Change the CalculateArea method to a Sub procedure. …

I am developing a network chat application, I am using Winapi, my main window is a dialog (created from a .rc file). I am looking into a way of doing an text box where my outuput text can be like this: [QUOTE] [COLOR="Green"]Welcome to ##### chat server![/COLOR] [COLOR="Red"]Person1[/COLOR] says: Hi …

Greetings, My app saves a bunch of stuff to an XML file. This is my line of code- [CODE] Using writer As XmlWriter = XmlWriter.Create("C:\vdx2k\MWS\RE\EXTReportsInbox\TK" & frmCitation.txtCiteNumber.Text & "Traff.xml", settings)[/CODE] So that saves it at that specific location. I need to duplicate the XML and have it also save in …

Hello how to read from a file,which contains only nimbers(int) and to record them in an array.It's sounds easy,but i can't do it:( for file example: 1234 4353 2345 2345 2312 1267 I mean they are in collom. Thanks in advance.

Maybe it's a noob question ... anyway, I create a dynamic number of PictureBox controls. I keep them inside a List. What I want now is to make them clickable: same event handler for all (opening of the image source file) with a parameter. The question is: how can I …

New to Java! We have to create a "sales" 2D array and initialize it with 100.00. Then we have to up the 3rd quarter by 500.00 and then lower the 4th quarter by 50.00. I know there's something simple I'm missing, but I can't quite figure it out. Any help …

Hi, I have a program which needs to accept a date, it can only accept under 30 days, and the entry has to be over 0 My problem is that it accepts anything, it doesnt make sense because i have used the exact layout on other bits of code which …

I have to read in a file and do dot product calculations on two arrays but I get an error whenever I try to run it. Here is my code, [CODE]#include <stdio.h> #include <stdlib.h> #include <string.h> #include <math.h> int main() { FILE* input; FILE* output; int product=0; int length=0; int* …

Hi, I have some basic knowledge in programming however it is not enough to solve the problem I faced currently. So I would like to ask for the pros for guild and help. I have attached the print screen of my program's GUI 1)From the GUI, the combobox next to …

Im trying for a message box to pop up but this code gives me always "Absent".How can i fix this. [CODE] Dim time As Date Dim CurrHour As Integer Dim CurrMinute As Integer time = DateTime.Now CurrHour = time.Hour ' Get current hour value CurrMinute = time.Minute ' Get current …

Alright, I admit that I'm struggling a bit with Java but for the project that I'm trying to do I need to create a bunch of bank accounts and then calculate the interest and return the names of the account holders and their balance and interest, as well as the …

[CODE]if(count == 4){ qFinal.enqueue(q.peek()); if(count3 == 0){ System.out.println(qFinal); break; } else{ sort(qFinal); } } [/CODE] this code is inside a while loop, and with the break statement, it should break out of the loop right? instead i think the program also executes the sort(qFinal) method b/c after it prints qFinal …

Hi For my interface i don't want to use the typical rectangle buttons instead i want to use buttons of different shapes can any one help me in this regard

hey can any one tell me how to create text effects in c#.... e.g. flame text

I need to make a string for a description textbox so later it can be added into a listbox and I dont know how to do this and this is all I got, which isnt much [CODE] Dim desripition As String Private Sub textbox2_TextChanged(ByVal sender As System.Object, ByVal e As …

I have a combobox which contains the different values from database. However, if the user types another name into the combobox, it is accepted. I want to allow only the names already associated with the control. But there is no readonly property form a combobox in VS 2010

i have a problem to sum up the value. for example: in my richtextbox1: 0.94 0.83 1.67 0.50 0.67 1.25 0.98 now i wan to total up the value. if the value is less than 1 , then total is 5. if the value is greater than 1, then total …

Hi I want to create a c# program where i have to check processes which are currently running and close a particular of them can any one help me Thanks.

i have a problem to do calculation part. i need to do 3 calculation part. Now my problem is , my answer for conf and lift loop many times. may i know how to correct it? below are my coding: [CODE] string b = txtTotalItems.Text; double e = Double.Parse(b); double …

I have put together a program using a class AbstractSort that can be used to analyze the number of comparisons performed by a sorting algorithm. Anyway, I built the programs( I have 2 here) and the first one counts the passes but does not order the array created and the …