Software Development Forum

Hey all. I'm facing a bit of a challenge and and having a hard time trying to figgure out how do do this. Basically I have two computers (Raspbery Pi's) that I'm using. One (Pi A) is acting as a remote and sends a request to the receiver (Pi B). …

Group, I'm now having to merge several of these text files together. At the end of each of the text files is a line that says "End of Report". I need to eliminate this line completely. This code does the merge for me: RestranName = getRestranName(0) RestranName2 = getRestranName(1) System.IO.File.AppendAllText(RestranName2, …

im trying to make a simple example in threading this error msg can anyone help me to solve it ? Cross-thread operation not valid: Control 'cmb1' accessed from a thread other than the thread it was created on. Imports System.Threading Public Class Form1 Inherits System.Windows.Forms.Form Dim th1 As Thread Dim …

is there a way to search database viwable in datagrid view by selecting rows through a combo box, values trough a text box and display resoult in label? here is the code that doesnt work: Private Sub Command1_Click() 'populate datagrid trough textboxes DBGrid1.Columns(0).Text = Text1.Text Text1 = "" DBGrid1.Columns(1).Text = …

i couldn't edit my previous post or can't delete. so i open new. sorry again i have two text file one is a.txt and another is b.txt content of a.txt is a b c d content of b.txt is 1 2 3 4 5 6 7 8 9 i want …

Hi, I have been trying to create a game loop that is paused when a certain key is pressed. This seemed to work ok in Swing but in javafx the loop locks up the UI, even if i create a seperate thread. @FXML public void setPaused(KeyEvent e) { if (e.getCode().compareTo(KeyCode.P) …

why we use "<< " thes signs in cout function?

How can I find the width of a command line window from a GNU C++-program ? I'll use this information to display a progress bar when copying files, so I need to know the width to be able to display the progress bar correctly.

Hi, Let's say I have an array of 10 elements. I want user to enter 9 numbers so that they fill arrays 0 to 8 (9 numbers). Now I shift the arrays +1. so array[0] is now array[1] and so on. Now I ask user to enter 10th number (fills …

Hello -- When using the PrintForm component in VB.Net 2010 I would like to change the back color of the form from black to white just prior to printing to preview. Then once the print preview window is closed the back color returns to black. Here is the code I …

I am developing a Java application that uses a JTable. I want to allow the user to enter data in a JTable that can later be printed or saved as PDF file. The issues is: Suppose the user has entered some data and the cursor is on the last cell …

hello everyone, i am developing a quotation generator application using Java. I am using a JTable to capture user input(this input is taken from a database i.e. each cell of the tale will have a combobox where the user can select an input value). when the user is done he/she …

Hey! I'm a beginner and I am making a code about getting the directory of a file, but I have something that I don't understand. What's the meaning of "./" in `DS = opendir ("./");` I have searched a lot of sites about C programming, but nothing gave me a …

I am trying to get character matching when comparing two strings. The result would display the two words side by side with the matching (and non-matching) characters displayed. This would be similar to mastermind. Example: (test word) - HALE (sample word) - HELP This would be displayed as: H?L? HELP …

Hello, what can i do to convert a date that is dd/mm/yyyy to yyyy-mm-dd? public static Paginacao<Solicitacao> PaginarParaLote(int paginaAtual = 0, int itensPorPagina = 20, int? TipoId = null, long? ProtocoloId = null, int? StatusId = null, DateTime? DataSolicitacaoInicio = null, DateTime? DataSolicitacaoFim = null) { StringBuilder strWhere = new …

Hi. I am not exactly new to python but I have never done anything related to time and I don't know how. I want to make a count down timer that starts when I start a program and then either closes when I close the program or when it counts …

Hey guys, I have a quick question here, I have Python 2 installed on my machine and I read a book on Python and Vega's great threads. However, my next book that I am about to read states that I need Python 3 to compile the code on their examples, …

I'm writing some custom encryption code in Java for my server. The only problem is that in my encryption I'm using XOR. The data gets encrypted fine, but when I decrypt it doesn't decrypt correctly. I am not sure what is cuasing this problem. Here is my code that I …

Whenever we talk about open source we only talk about big coding projects with contributions from aound the world. An openly available source code and all. I was wondering going with the spirit or the philosophy of open source aren't freely available books also part of open source. I also …

I copied this code from page 11 of http://personal.denison.edu/~krone/cs173/files/PythontoC++.pdf and assigned it to a Python string. Alas there are still line numbers. How could I use Python to remove these? Help, I have a mental block. s = ''' 1 #include <iostream> 2 using namespace std; 3 4 int gcd(int …

Group, I'm counting the number of files in a folder using the following code: Dim counter = My.Computer.FileSystem.GetFiles(folderName) This produces a value that doesn't appear to be either a string or an integer. Would you know how to convert this value into an integer that can be used? Don

Hello to all, I'm trying to use the function below to print strings to a file. When I use Console.Write() or Console.WriteLine() the output file grows up 3MB or 4MB per seconds, but when I try to use StreamWriter or File.AppendAllText the output in the way shown below, the file …

I'm making some "cleanup" changes to my 1st VB.net project that I'm publishing. The project has an "Assembly Name". But I've just realized that the Root Namespace has the default name of "WindowsApplication1". I've got to believe this needs to be changed. How important is the name I put here? …

I have canny edge detection and steganography source code.I want to combine these.How should I do? I want to test with PSNR for image quality.How can I add where steganography source code? Thanks and best regards, Maythu

Group, I've published my first VB.net program (woo hoo!). This prompts me to ask a couple of questions: 1) I'm using a couple of text files to hold some user updated info. Is there a way to have the setup program to create the folder and attached the text files …

it is told that in object oriented language every thing is an object.. ihave written two lines:- int a; Object b; when i do b. options appears but when i do a. options do not appear..accourding to theory a is also an object then why the same option appear for …

Hello everyone, I am working on Linux PC and want to make a program to get data from RaspberryPi(another Linux machine). Both machines are connected together by CAT5 cable directly without any Switch or Hub. Linux PC hostname is mike and IP is 192.168.93.12 Raspberry hostname is pi and IP …

Hi guys, I've got a little problem.A part of the project I'm working on reads data from an excel file and stores it in the database. It works fine for 15-20 records but fails after that. I have properly closed the connection and the reader I'm using. But ut doesn't …

I have a datagrid on the form bind with recordsets. I need to know if is it possible to assign that datagrid object into a variable? I have created a preliminary code but its not working dim dbgridvar as DataGrid Private Sub Assign_Click() set dbgridvar=Form1.Datagrid1 End Sub Thank you for …

Hi, I want to use Lazarus on my mac, and I went through the steps, installed the three packages at http://sourceforge.net/projects/lazarus/files/Lazarus%20Mac%20OS%20X%20i386/Lazarus%201.2.6/ . I also typed xcode-select --install into my terminal, which installed some necessary command line tools. The 'Configure Lazarus IDE' has recognised the compiler, FPC sources, and 'make', but …

Hello i have an problem with an inheritance query using JPA (There is my Class Hierarchy) +UsuarioGenerico (MappedSuperclass or Entity - but is Abstract) -+Usuario (Entity) -+UsuarioPorEmpresa (Entity) Then, when i try make an select for Usuario, i not obtain results i try with an NamedQuery: `@NamedQuery(name="Usuario.findAll", query="SELECT u FROM …

Hi. I have a program that detects all the folders that are open and displays each one in a ListBox item.  What I want it to do is if a certain folder is closed, I want it to start a batch file and close itself. I know how …

In the following program it says that there is a conflict between my getline and the getline in stdio.h. I understand what it's saying because stdio.h has it's own getline function. What's confusing me is that this is the program that my programming book (The C Programming Language) is giving …

I have the following query that list all chemicals(chemical tbl) and its consumption(receipt tbl). However if the chemical codes are not in receipt tbl, it does not show the chemical name. It should display the name and put the consumption as zero. My codes below: SELECT Chemical.ChemicalCode, Chemical.ChemicalName, GroupDetails.GroupName, Chemical.LastRate, …

Hi, i want to ask u something guys. i have one textbox. While writing in, after pressing Space, i want to intstead of white space, write this "|" . This is my code void TextBox1KeyPress(object sender, System.Windows.Forms.KeyPressEventArgs e) { if (e.KeyChar == (char)Keys.Space) { textBox1.AppendText("|"); } } Problem is it …

Hi guys, I'm creating the width size for the buttons when I'm getting a list of arrays so I can store the buttons size in a database. The types of arrays that I stored for the buttons and the buttons width size is a list. I have stored a list …

PLease write a better code which is rather advance form using #include<queue> && #include<list> #include<iostream> #include<conio.h> #include <iomanip.h> using namespace std; const int size=20; // Patient Class class Patient { int age; char name[30],phy; public: Patient() { age=0; strcpy(name,""); phy=NULL; } void SetName(char* P_name) { strcpy(name,P_name); } void SetAge(int P_age) …

hi all again i want to save my 3 columns of listview with data in vb.net built in settings saver how i can do that and how i can load it back when form load. i write something like this My.Settings.advance_settings.Add(TextBox2.Text) My.Settings.advance_settings1.Add(TextBox1.Text) My.Settings.advance_settings2.Add(Date.Today) my.settings.save() it will save the data but …

Hey Pals, I was trying very hard to compare 2 numbers when one is not in any sequence. EG: First number: 1233 Second Number: 3321 In this case above, i want it to match because they both contains same numbers, just that it is not in sequence. I have tried …

Tell me the best IDE for Python 3.4 version(Windows7 64bit)

I was working on my raspberry pi creating a game called raspberrysnake from code out of a book. I entered the code exactly as shown... I had a few errors which turned out to be missing characters or mistyped characters. Finally, after catching these, I ran it through the command …

I am just wondering if I target the lowest .net framework, does it follow that all subsequent/later versions are able to run it?

I am making my own component similar to the JOptionPane, but with some added GUI components specialised for my current project. I have finished with the GUI of the component, but I do not know how to make wait for the user to enter input before continuing, as the JOptionPane …

I have a move function which moves the files from one folder to another folder.. I am wondering how can i show the total numbers of files moved and moved filenames in a dialog box. or any idea..!!!! Here the problem is Once i press Move all the files moving, …

Hi boys and Girls, Quick question I cannot seem to find the answer to: Why use CodeDOM to generate a class over say saving the structure of your code as text to a notepad and renaiming it to .cs? or just save it as a .cs file outright? Why go …

Hi How to merge two binary files into one in python and make them both execute. For example 1.exe+2.exe = OutPut3.exe when you run 3.exe both 1 and 2 execute def Main(): File_1 = raw_input("Location path of 1.exe:") File_2 = raw_input(" Location path of 2.exe:")

I creating an application in visual studio where I have a client to request specific information to multiple servers. Someone Knows i can make this communication? For one server i know to create that, for many servers i dont have idea. Code example!!! One client for many servers! For one …

I have a 2d array and I want to check if its in increasing order. here is a example of 2d array increasing order: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, here …

Hello Geeks; In the eve of new year i have some fresh topics for you. I heard that web is full of real life oop design samples and comprehensive object oriented design guides. Which sites would you offer or which tutorial sequence should i follow ??? PS. Of course other …

Hi I have manage to install vb5 and trheed32.ocx Trying to install vb6 okej. when I go to components and mark sheridan then it comes up that threed32.ocx is not a valid ocx. Confused how can vb5 run with threed32 and vb6 **NOT** Any help it will help me lot. …