Software Development Forum

I was browsing the web for examples on how to partition in Java. [URL="http://www.cs.princeton.edu/introcs/23recursion/Partition.java.html"]I've got to this website that has a detailed example about Partitioning[/URL] so I've tried to run it on my JCreator Pro. I've only got one error, but I've tried all I can do to fix it …

error message: No value given for one or more required parameters. that falls in dr = cmd.ExecuteReader need help Imports System.Data.OleDb Public Class Form1 Dim conn As OleDbConnection Dim cmd As OleDbCommand Dim strSQL As String Dim dr As OleDbDataReader ' Dim ctr As Integer Private Sub Form1_Load(ByVal sender As …

How can I retrieve data from a DB in Access to labels, or radiobuttons in VB.NET? I've search and to retrieve data people usually show Datagrids. I just need to know how to navigate in records, by the number of their position (?) and to place that data in labels/textbox …

I need to convert array of char to hex one char at a time , I tried to use sprintf,but it did not work. ?

Hi everyone, I am trying to build a code to get the website asynchronously using webclient.downloadstringasync I want to pass the data thus retrieved from dowloadstringcompleted to another function. This is the code I am using, [CODE] dim myString as String Function GetSite(ByVal as URL as String) StartDownload(URL) WebBrowser1.DocumentText = …

def sort(l, x) if len(l) <= 1: ### if my list is smaller than 1, simply return l return l else: ### Here is the problem i don't know how to solve - how to find smallest element within a list using recursion? I've tried to call another function in …

hi there... i am very new (and i mean VERY NEW at visual basic) programming, lets just say this is my 5th hour (and counting) learning programming, i googled since hour 1, i even read almost all i can read while im installing visual studio 2010 coz i really want …

I'm working on a program in C++ that is supposed to output som data from a couple of classes. I thought I'd let the user choose what to output (what function) through a switch in main. This is basicly how the main looks now. (Just a general overview of the …

I'm creating a library which when everytime i add new book, i always get the [B][B]'Update or CancelUpdate without addnew or edit[/B][/B]'.The condition is when the user inputs a new ISBN that is already in the database, the message box will prompt as "That book is already listed!', else if …

Hi, I am new to C++, for my home work for intro to C++, well it would be easier if I just copy and paste the assignment. [I]In this program, you will continuously track the minimum and maximum values of a file of integers as the file is read. Your …

Hi, have tryed and everything below gives me 0 [CODE=c++] sizeof(array) / sizeof(*array); sizeof(array) / sizeof(array[0]); sizeof(array) / sizeof(array data type); //even the thing which i do not understant: template< typename T, std::size_t N > inline std::size_t size( T(&)[N] ) { return N ; } [/CODE] I need to get …

Hi everybody, I have following code: Public Class Form1 Private Sub btn1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btn1.Click Dim dayChange As Date = dtp2.Value Dim answer As Date answer = dayChange.AddDays(1) dtp2.Value = answer End Sub End Class Working : each time I click btn1 datetimepicker changes …

any suggestions? <%@ page language="java" %> <%@ page import="trader.webservices.data.LeadDAO" %> <%@ page import="trader.aabacrm.LeadsList" %> <%@ page import="trader.webservices.data.*" %> <%@ page import="trader.webservices.presentation.Lead" %> <%@ page import="trader.webservices.data.UserInfoDAO" %> <%@ page import="trader.webservices.data.UserDataVO" %> <%@ page import="trader.webservices.data.ButtonDAO" %> <%@ page import="trader.webservices.constants.UserConstants" %> <%@ page import="trader.webservices.util.Utils" %> <%@ page import="java.math.*" %> <% RequestDispatcher dispatcher = …

Hey guys, quick question: I have been experementing with the _popen() function to get the stdout from programs. I'm trying to wrap it in a function for quick reuse, but the prog crashes every time! Here is the function (as well as the quick test main() function): [CODE] // crt_popen.c …

Hi there, [CODE] #include<stdio.h> main() { int i; i=1,2,3; printf("Value of i with assignment as i=1,2,3 is %d\n", i); i=(1,2),3; printf("Value of i with assignment as i=(1,2),3 is %d\n", i); i=1,(2,3); printf("Value of i with assignment as i=1,(2,3)is %d\n", i); i=(1,2,3); printf("Value of i with assignment as i=(1,2,3) is %d\n", …

Hey I am trying to do a tic tac to game, and im getting a few errors that I don't understand, Please help me. Here is my code: [CODE] #include<iostream> using namespace std; const int num_rows = 3; const int num_colm = 3; void xPlayer(char board[][num_colm], int); void oPlayer(char board[][num_colm], …

Hey Say I have a login and the main form. If the login window is closed then the other form shouldn't load. I tried using a if condition to suppress initializeComponent but it still shows the main form, but empty. How would you do that?

Hello:) I am asking the user to input a numerical grade into one textbox and then I want to show the corrosponding grade in the textbox below when they push a 'calculate' button. I have put it the code below and I am puzzled because I have listed 6 conditionals …

Hey There, its Ruan. uhh, i need help, as i did indeed hit a brick wall. at the moment, i can connect to a database through textboxes, ill put the code at the bottom. What i want to do/know, is, How or What is the code or manner to read …

hopefully I can explain this well. I have an application built in vs 2008. The main form is a MDI form with a datagrid for record selection. When the user double clicks on the datagrid it opens a child form with the selected information. the problem I'm having is once …

How can I change the color of the font or text? I've tried area.setFontColor, area.setColor, comic.setColor. area is the JTextArea. comic is a font. arial is a font. I have a [code]final Color red = new Color(); red = Color.red;[/code] but I don't know how to set the Font or …

Hi.. I want help in C++, I want to read a file reversly and write it in a new file, how can I do that? Thanks for your time..

[code] class Node { private: int integer; Node *pointer; public: Node(int x = 0, Node *y = NULL) { integer = x; pointer = y; } int getInteger() { return integer; } Node getPointer() { return *pointer; } }; [/code] [code] private: Node *stack; Node *top; int listSize; int pushedValue; …

I tried [CODE]DBCC CHECKIDENT('Customer', RESEED, 0)[/CODE] but there's an error. Incorrect DBCC statement. Check the documentation for the correct DBCC syntax and options.

This is my code [CODE] string srch1; string srch2; if (cb1.SelectedItem.ToString() == "Book Title") { srch1 = "Book_Title"; } else if (cb1.SelectedItem.ToString() == "Call Number") { srch1 = "Call_Number"; } else { srch1 = "Accession_Number"; } if (cb2.SelectedItem.ToString() == "Ascending Order") { srch2 = "ASC"; } else { srch2 = …

I thought i already assigned it? [CODE] string srch1 = ""; string srch2 = ""; if (cb1.SelectedItem.ToString() == "Book Title") { srch1 = "Book_Title"; } else if (cb1.SelectedItem.ToString() == "Call Number") { srch1 = "Call_Number"; } else if (cb1.SelectedItem.ToString() == "Accession_Number") { srch1 = "Accession_Number"; } if (cb2.SelectedItem.ToString() == "Ascending …

Hi, I am very new to Perl Scripting. I used Shell scripting before, but very little knowledge of Perl Scripting. I am given at task at my work: Here is info: I need to write a program that will listen to a port which will connect from Telnet. Also, the …

May i know how to sort a datatable?My code that show below got any problem? why the datatable cant sort by qFundCode? Firstly,my program is add sum datarow where qFundCode show below are to datatable. qFunCode WER WER WER THS THS THS AG AG AG After this,i add another datarow …

In this program i have input name and code in super class and print it, it also print in sub class [iCODE]Manager[/iCODE] I created the object for super class to input name and code, and another object to input Manager's Data, but in the output the Name is showing null …

hi friends, check this program beneath....... \\program to fin integere part and fractional part of given real number... #include<iostream.h> #include<conio.h> void intfrac(int,float&,float&); void main() { float number,intpart,fracpart; cout<<"enter any real number:"; cin>>number; intfrac(number,intpart,fracpart); cout<<"integer part is:"<<intpart; cout<<"\nfraction part is:"<<fracpart; getch(); } void intfrac(float n,float& intp,float& fracp) { fracp=n%1; intp=n-fracp; } …

Hello, I have a question about set and get, I tried to search the forum for answers but i didnt find what i wanted. Sry if this question exists:$ 1. How do i check that the StudentId to be at least 6 characters using the set? Can i do it …

I am having problems while trying to communicate with the serial port. I have read many tutorials online and found all of them either to be not useful or just too complicated for the task which I must achieve. The task is simple. I want to: 1) Open a port …

Hello, i have a question about string manipulation, i am supposed to write a function that takes a character array and returns a void, so far so good, but its supposed to reverse the array as output, for example, if the input is "Hello" the output is "olleH", here is …

Hello. i wrote a program to do the following: [B]Given two strings S1 and S2. Delete from S2 all those characters which occur in S1 also and finally create a clean S2 with the relevant characters deleted. [/B] This is what i tried: [CODE] void trimString() { char s1[] = …

Hello to all, I would like to ask if it is possible to transfer a text from a VB textbox to HTML textbox? If it is, how? Thank you in advance. Regards; nagatron

Hi all, I am new in c++ programming and I am trying to make some examples But unfortunately I have some problems My code is : [CODE] #include <iostream> #include <string> using namespace std; int main() { string firstname, lastname, fullname; cout << "First name: "; cin >> firstname ; …

Hi anyone can help me edit VB6 code to VB.NET code cause i have been working on it and still can't get any thing on it. there are some code which cannot be recognise by .net pls help.

hi, this is the code that i use to press enter. how do i make that enter to be pressed only once not more than that. PLEASE HELP!!! [CODE] Private Sub frmPasscode_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles Me.KeyPress blnPwdFromKeyboard = True If Char.IsNumber(e.KeyChar) Then Select Case Microsoft.VisualBasic.Val(e.KeyChar) …

I want to execute a command to query DHCP Server. For that purpose I have written some code in perl. Now when I execute that perl file in command prompt using c# I get following errer "The specified executable is not a valid Win32 application." I have pasted the code …

I have written the following code for converting infix to prefix.. [CODE] //Infix to prefix conversion #include<stdio.h> #include<conio.h> #include<string.h> #include<ctype.h> #define MAX 25 void initstack(struct stack *); void push(struct stack *,char); char pop(struct stack *); char *convert(struct stack *,char *); void show(struct stack); int priority(char); struct stack { char arr[MAX]; …

How do I make my array legal? It doesn't seem to like my style here. [CODE]import java.util.Scanner; public class solveQuadratic { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stub Scanner input = new Scanner (System.in); double[] eqn = new double[2]; double[] roots …

Hellur! Can somebody explain how exactly a fast fourier transform is performed on a wave file? What's happening behind the scenes? I need to get a basic idea of how it works. Thanks in advance drue

Hi,here is another interesting problem that will make you think. The tower of happiness is located in the garden of effort.Happiness is waiting for you in the top chamber of the tower.The stairs that lead you to the chamber has N steps and you are allowed to climb up one …

Hi, I'm new to this forum and would like to ask a question relating to C#. I am trying to make my custom OS, and shutting it down, but I am encountering a problem. Here is what I have so far: [CODE]using System; using Cosmos.Compiler.Builder; namespace CosmosBoot1 { class Program …

Hi, I have a question about constructors and the difference between passing by value and by reference. If you look at the two examples I attached. Example one has a constructor that passes by value and example two pass by reference. Now I want to know why example one will …

Hi all, I am trying to make sure that users can only input integers in my program and no other types. Here is the program: [CODE]#include<iostream> using namespace std; int main() { int numbers[9]; int k; cout<<"Enter 9 numbers: "; for( k = 0; k<9; k++) { cin >> numbers[k]; …

I'm having trouble with a for loop! I'm trying to solve a differential equation using Euler's method like so; [TEX]\displaystyle\frac{dy}{dx} = 7{y^2}cos(y^2)-3e^{xy}, \ \ \ 0 \leq x \leq 1 \ \ \ y(0) = 0[/TEX] This is solved using the algorithm [TEX]y_{n+1} = y_n + hf(x_n , y_n)[/TEX] Where …

Hi guys. This is my first post here and I've read through the forum quite a bit and can't wait to get more involved. So here is my main problem: getting my code to take the text I enter into an entry box to be recognized as a string so …

I am have some really weird iostream errors. This is my first time using functions. Maybe I did something completely wrong. I just need someone to point out my error and maybe help with building a function to find the minimum value out of 4 input numbers. [code=c] #include <iostream> …

The program I'm supposed to make a program where one thread starts three other threads. The original thread is going to wait until the three other has finished running and then the first thread can stop. The way I've built the program the three threads is started from one class, …