Software Development Forum

Should I use cmath to use PI and trig functions? I dont think math.h has it - and cmath and math seem like redefine alot of the same things. What is standard practice? Thanks, Dave

so, im trying to make a simple funtion to see if there is a file in a folder. been looking everywhere but havent found one that worked out. annnnnnnnnnnnnd code snippet: ` WIN32_FIND_DATA FindFileData; HANDLE hFind; hFind = FindFirstFile(_T"C:\\Dev-Cpp\\notes", &FindFileData); if (hFind == INVALID_HANDLE_VALUE) { cout << "No File found\n"; …

Hi there! I am making a space invaders game for iphone with xcode. You can move the ship to the right or to the left when pressing the right or the left part of the window. The "enemies" appear randomly at the top of the window, but the problem is …

Hi Dw I'm trying to copy a chosen file to a directory under 'C:\example' directory folder, I have a textbox to store the address (path) to the selected file, a OpenFileDialog to enable the user to browse to the file to copy and also a FolderBrowserDialog which let the user …

I'm making a messenger app and I need to know how to set up connections so that somebody could send messages to other via WI-FI.I googled a little and I find something at this page [Click Here](https://code.google.com/p/simple-android-instant-messaging-application/source/browse/trunk/src/com/mekya/communication/SocketOperator.java)but I don't understand it.Here is my main class/StartingPoint (all my code is just …

private void Form1_Load(object sender, EventArgs e) { cn.Open(); } ERROR:Cannot open database "Persons" requested by the login. The login failed. can anyone tell me how to fix this?

hi everybody! I really need your help here. I am developing a 3D game. so far I have came no further than finishing the 3D engine and print out some basic 3D-models. everything works okay, with exception of a bug, occuring after a couple of minutes of running time. it …

I've seen a few different ways to convert a string to ascii and I was wondering what is the best way and why. char str[100]; int i=0; printf("Enter any string: "); scanf("%s",str); printf("ASCII values of each characters of given string: "); while(str[i]) printf("%d ",str[i++]); ----------------------------------------------------------------------------- int main() { char *s="hello"; …

hmm, think I figured it out

How could I change the column header of the Data Grid to center or right but not left as default? [Pls pay attention, We are talking 'bout Data Grid here, recently I always receive answers for Data Grid View instead :( ] I just want to re-align the header only, …

Hello, I have a quick question about c/c++ syntax. Basically I am wondering when it is allowable to have numbers in identifiers. My compiler happens to allow numbers in: * Function names * Class names * Variable names * Pre-processor names As long as they do not begin with numbers. …

i've been working on a program and i want it to be accessed by multiple users. so i have an admin account and an other users account what i want to do is for the other users to be able to access the program and its database from another computer …

return the first count multiples of number in desc order in a list. e.g call with input (3,2) returns [6,3] call with input(5,3) returns [15,10, 5] plz help me with this how can i do it using map()??

Hi Dw I have folder which has all the files and the folder can have as much files inside as possible so I have created the function which gets all the files inside this folder and populate it on a listbox so now the problem is that it shows with …

so i am new to c++ and my teacher told me to make a hotel management programme... well to make it more cool looking i wanna add those arror keys scroll selection this " --> " when press up key it goes to the first option, down to the other …

I am working on a basic classified ad system that when used prompts the user with several questions. The user input answering those questions is then printed out when the user enters a show command. I am trying to figure out a way to store the previous input while still …

I need to generate 40 random numbers between 50 and 100 using rand(). How do I do this? cout << sizeof(a) << endl; for(int i = 0; i < 40; i++) { if(rand() % 1000+1 >= 50 && rand() %1000+1 <= 100) a[i] = rand() %1000+1; } I was doing …

Companies using IBM's Rational and Tivoli product will breathe easier today, thanks to new, integrated versions of nine tools that the company says will facilitate communication and closer collaboration between software development and support teams in the enterprise. What's more, prices will remain where they are, and the updates are …

I don't know what's wrong but the succeeding strings are not properly read by fgets. else { initArray(word1); //first string fgets(word1, 29, fileIn); printf("word1: %s\n", word1); len = strlen(word1); if(word1[len-1] == '\n') word1[len-1] = '\0'; while(!feof(fileIn)) { //succeeding strings in next line initArray(word1); fgets(word1, 30, fileIn); printf("word1: %s\n", word1); len …

Hi everybody, I would need and advice. I work with binary tree in language C and I wanna to save data from binary tree to file. I try to make similar way to C++, but proposed code notice failure. How I modify it to put it into operation. that's the …

hi everyone my question is how to clear a datagrid view in vb.net 2010 i have tried DatGridView1.Clear() but it only works once and i would like to clear my datagrid every time i click the load button hers my code Private Sub Button15_Click(sender As System.Object, e As System.EventArgs) Handles …

I want to print data from XML in readable formate which is the last section of XML file .My code writes data from database to XML file . Here is a code i use to write XML Note: myread is a dll containing dataset,data adapter and connection string. ds As …

I am supposed to complete an java assignment which satisfies the following constraints 1)read an .html file which is given as input(This is not an weburl) just an file stored in hard-disk 2)Count the occurences of all the tags which are present in the html file but it must exclude …

I'm trying to use this code to get all directories on a drive. It works good until it gets an access violation. A lot of people have said to use try-catch to get around the exceptions, but the way I'm trying to do it I only get the directories up …

Guys, I want to make a purchase list of buyers example : buyers buy 3 products in 1 Purchase Order. what tools I use in C #? What data types used in SQL SERVER database?

In this line -> `tcpSerSock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)` what is the first 'socket' after the '=' sign, is that refering to a socket class making tcpSerSock an object or just to a module called socket? After reading the documentation I see that socket.accept returns a connection and an address pair, …

Hi all . I would really much appreciated if some one can help and guide me how to do login page by visual studio . Basically im trying to build helpdesk project . login page with database connection . Thanks in advance

Hello, so I am trying to get a Netbeans application on the web, specifically in this location here: http://hellojar.elementfx.com/FunGame/index.html As you can see it loads, but then crashes as it cannot find "main". (my attempt at trying to find the right run location of my Main) Here is my HTML …

Write an application that finds the total and average of odd numbers from 1 to 15. Your program must use a counted loop to accomplish this task. So far all I have is > public class OddLoop { public static void main(String[] args) { { int total = 1; for …

I have tried every possible way of connecting the database to the program, but its just not happening! Help me please :( final static String fileName ="Netlync.mdb"; static{ try{ Class.forName("sun.jdbc.odbc.JdbcOdbcDriver"); String url = "jdbc:odbc:Driver={Microsoft Access Driver (*.mdb, *.accdb)};DBQ="+fileName; con = DriverManager.getConnection(url,"",""); }catch(Exception exx){ exx.printStackTrace(); }} private static Connection con;

I'm hoping this is the right place to get some expert advice on putting an app together. I have a Beaglebone Black (BBB, a credit card sized Linux platform) that collects bursts of sensor data. Even though I'm relatively new to Linux, I'm pretty comfortable with the data collection end …

I am trying to learn a bit of Haskell but I am having some problems with understanding how to make programs with pow*. For example I have to create the following program: What the program does is 1+2(pow2)+3(pow2)+n(pow2) and then to make sure that n is positive number. If someone …

I wrote a code which fills numbers into the file and when the file exceeds the size given, it stops adding data. But whenever i run the code there is an indefinite run in the data and the size of file just goes off the chart! Please help!! def create_file_numbers(filename, …

I have the following html code: <name>Username</name> <kills>1</kills> <ach_count>3</ach_count> And on and on..... I am looking for a code that extracts the value from <tag></tag> and puts them into variable. I don't want to use HTML Agility Pack, don't ask why.Also XML is not an option for me. I hope …

I have following problem: I have 2 structures: Clients and items for example structure clients would have name and list of items from another structure asigned to this specific name I have to do this with singly linked lists. I simply have no idea how to do this would be …

Hey guys.. i am currently doing my java assignment can i dont get how to do this question. A) Using the for statement, write a Java program that reads 10 integer values from the user and prints the highest value entered. B) Using a relevant conditional loop, write a Java …

Write a C++ program that reads a set of eight temperatures values and display the number of HOT, WARM and COLD records according to the following classification HOT >35 warm Between 27-35 cold <27 by using if statment

Well I have created this one and on my computer it is working. I would like to hear about some alternative solutions. INTRODUCTION This time I have one algorithm, but to understand it we need to consider a few terms. First of all, we should be familiar with the pangrams. …

Hey guys so I'm having an issue with my program. Some information about my program it stores a const char* str converts it to int which is in ascii then it runs a test on the number and converts it back to a string. Then it will also add these …

Private Sub btnsave_Click(sender As Object, e As EventArgs) Handles btnsave.Click 'to check if the records already exists... Dim sqlQRY As String = "SELECT COUNT(namee) AS namecount from staff WHERE namee='" & TextBox7.Text & "'" Dim queryResult As Integer Dim com As New OleDbCommand(sqlQRY, conn) queryResult = com.ExecuteScalar() If queryResult > …

Hello Friends, i am trying to convert image files (ie. jpg, bmp, png) in DICOM images. but i dont get any help of article to convert it. i try such articles but still not find any help. [Click Here](http://isonline.in/dicom) [Click Here](http://code.isonline.in/convert-image-to-binary-string) if you have any idea please suggest us. Thanks

Hi guys. I need help in copying selected row from DataGrid to another. What I want is if I click a row it will be copied to another DataGrid. I set my DataGrid Selection Mode to FullRowSelect. Is it possible for me to update my database using the copied rows. …

Hi All, How do i get user choice Radio button text from multiple radio button, When i save as word document. Below code is what i did: "Food :" & ComboBox1.Text & ", Quantity :" & txtCountFood & vbNewLine & But instead of using ComboBox (as above code) i want …

my question is , where & when are `static` and `extern` used ?

kindly tell what is #pragma warning(disable: 4996) in the above program????and how can we cout the locations of each vowel in the sentence..

Hello everyone, this is my first help post on daniweb so please excuse me if I have done something wrong. So as for my question, I have to shuffle an array of card objects. This is the code I have come up with so far. public void shuffleDeck(){ Random seed …

hi every one am a beginner and need help with a guessing game am writing an any one help me out ?

Hi just starting learning java .. is there drop and drag for objects in java like visual basic without importing a lot of modules and write a big code to show a window.. writing program for consol it is very good but gui a lot of code for small result.. …

using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Windows.Forms; using System.Data.OleDb; namespace WindowsFormsApplication1 { public partial class Form2 : Form { OleDbConnection con = new OleDbConnection(@"Provider=Microsoft.ACE.OLEDB.12.0;Data Source='login.accdb'"); public Form2() { InitializeComponent(); } private void label3_Click(object sender, EventArgs e) { } private void button2_Click(object …

I'm right at the start of designing a small E:Mail control program for a friend, but would just like to ask some advice on best practice before I dive in at the deep end. I have a Form with 2 ComboBoxes and the data selected decides what to send, what …