Software Development Forum

hello dear community, first of all - i hope that my beginner-question will fit into this sub-forum. I hope so. Servo Control with Micropython - with the ESP 8266 ...- compared to Arduino I work with young kids and I'm always looking for economical platforms to build intriguing projects. While …

I created a simple Point of Sale program without database in Visual Studio 2008 (VB.NET) and I want to output the number of money bills that are needed to complete the change of the customer This is the preview of my program - https://ibb.co/R94400g In the image, at the bottom …

I have an issue when building for iOS in Xamarin Studio: I open Xamarin Studio and create a Single Project View App for IOS, I then run the project, but the project does not load onto the simulator all I get is the message "Waiting for the debugger to connect …

Hi there I’m learning vb.net and my main outcome is to be able to find out how to create from scratch custom GUI controls like 7 Segment displays in vb.net mind you and once I have accomplished that to be able to connect the hardware to a serial port like …

I am making a program, and I don't know why my program becomes unresponsive, when I click the button ): I have a feeling its because of this: "connection = server.accept();" I don't know how to fix it. I am trying to recreate this: https://stackoverflow.com/questions/18505123/how-to-use-client-chat-on-different-pc but in javafx. package yeetYeet; …

Hi developers! I have made a POS software. I have added the functionality of "priniting to Thermal printer" and "barcodes". Firstly I added the functionality of Reciept printing which worked perfectly. Then I added the functionality of barcode scanning. As you know barcode reader device automatically scans the barcode and …

I've problem about using Genymotion Android emulator for xamarin development. I have intalled Genymotion desktop app and several Android devices within it. Whenever i run any of the installed device in Genymotion desktop app via start button, it works fine but there is no Genymotion emulator in the list of …

hi, I have a vb program that wants to retrieve data from MySQL dbase. this code is working fine : Dim vDATE As String vDATE = mDATE.ToString("yyyy/MM/dd", System.Globalization.CultureInfo.InvariantCulture) Dim connstring As String = "server=xxx.xxx.x.xx;database=dbname;uid=idko;Pwd=passko" Using con As New MySqlConnection(connstring) con.Open() Dim query As String = "SELECT issue_date, inc_date, exp_date, total …

Hello Everyone. I am trying to create a code to decode an PostScript RLE image and save it. However, my output is always invalid (the raw image). I try to open it on photoshop but its always an invalid image or something like that. I've wrote at least three versions …

Hi developers! I have made a POS software. I have added the functionality of "priniting to Thermal printer" and "barcodes". Firstly I added the functionality of Reciept printing which worked perfectly. Then I added the functionality of barcode scanning. As you know barcode reader device automatically scans the barcode and …

When we build an application, which layer should we start with? From top (UI) to bottom(Data Layer) or bottom to top?

I have been wrestling with this for two days now and getting nowhere. Something is broken, either the GridSizer control or me. I'm hoping it's me and someone can show me the problem. I've stripped my app of non-essentials. What I am building is a Sudoku app which consists of …

Can anyone help me with this: I made a program where the user will choose a product from a menu and i want after the products that the user chosen will be output also below where there is like a "receipt-like" or a summary of what the user bought. I …

[B]I've highlighted the code in question in red. Can somebody tell me how the red code makes Pac man and the Ghosts move?[/B] [code]// // PacMan // Another 1 day game (created in 5 hours). // // (C)2000 // Brian Postma // [email][email protected][/email] // [url]http://www.homepages.hetnet.nl/~brianpostma[/url] // import java.awt.*; import java.applet.Applet; …

Hello, I have a ComboBox in my WinForm which has data from SQL server (used LINQ to bring up the data). I'd like to have an option just like AutoComplete in VB.NET but not only by the first letter but for a search LIKE. For Example: My ComboBox has there …

I have looked on the web for a solution to print scrollable panel larger than can be fitted on the screen but couldn't find any solution and it looks like that many people has this problem! PrintForm (printform powerpack component) can not do this because it only capture that part …

I need an answer for this question ( write 2 program that takes grade as input and display the range of marks use the select case and if() A. 90 to 100 B+ 80 to 89 B. 70 to 79 C 60 to 69 D 50 to 50 F. F

Hello all, I've actually seen a few posts floating around the web (most of which are rather old and none of which were solved) about the same question that I'm having which is this: I have a combobox that is populated with movies with a number corresponding to where it …

I have an assignment to create a card game that compares to dealt cards between players to see who has the highest valued card. It must first be determined by the cards value, then only if it is tied, the suits value. The code below is what I have so …

My program fail to generate the auto ID on my text can help me. Private Sub getNextNumber() If Not app.State = ConnectionState.Open Then 'open connection app.Open() End If Dim da As New OleDb.OleDbDataAdapter("select top 1 ID from ADMIN ORDER BY ID desc;", app) Dim dt As New DataTable 'fill data …

Hi guys, as part of an exercise I was involved with, I had to use the factory pattern to create a series of different objects, however I'd like to keep a list or map for what it matters of these objects and I'm getting a bit into troubles here. So …

I got this assignment and I'm stuck. I have to write a function that takes an integer value and returns the number with its digits reversed. For example, given the number 7631, the function should return 1367. Can someone help? :confused:

Hi guys, Am developing a clinical management system in VB.net and using Microsoft Access for the database. Everything else is working very well. But the login code is not working. It's throing an error message "Object reference not set to an instance of an object" on line 12. Below is …

hello, i recently joined the USACO's training gateway [url]http://ace.delos.com/usacogate[/url] I made the first problem([URL="http://ace.delos.com/usacoprob2?a=n4y3olVXOJ9&S=ride"]http://ace.delos.com/usacoprob2?a=n4y3olVXOJ9&S=ride[/URL]) and it ran successfully in my dev-cpp compiler. but the online grader threw some runtime error. it was like [COLOR="Red"]Compiling... Compile: OK Executing... > Run 1: Execution error: Your program (`ride') exited with signal #6 (abort()). …

hi everyone. been a while since i have been on here, alot has changed. I am in the middle of amending/adding features to an installer using python. I have the dropbox API (for business) set up and working, upload and downloading without issue. The potential issue i see is during …

Above program takes input of coefficient and power separately of 2 different polynomials add them up to a new polynomial.It is successfully compiled and executed in DEV CPP as C file.It Turbo C compiler add void before main function to avoid warning messages.

In this case I display values into datagridview from Projects table which it has only 2 columns: PROJECT_NAME VARCHAR ID INT // Which is hidden in datagridview, and as AUTOINCREMENT I have already done with editing values in this table and it works fine: `private void dataGridView4_CellEndEdit(object sender, DataGridViewCellEventArgs e) …

I´m need to parse a json object into a c# class, my problem is that json object has a nested array and it´s throwing some errors when parsing. I have tried a couple of options: a) do foreach in the elements of nested array, and add them to a new …

i want to remove a card from a randomly shuffled deck. so that each time a card is picked from the again shuffled deck. that card is eliminated from further play until all 52 cards are drawn. in python3.7

In mysql database i created "leave" table: CREATE TABLE `leave` ( `ID_LEAVE` int(11) NOT NULL, `ID_WORKER` int(11) NOT NULL, `BEGIN_DATE` datetime DEFAULT NULL, `END_DATE` datetime DEFAULT NULL ); INSERT INTO `leave` (`ID_LEAVE`, `ID_WORKER`, `BEGIN_DATE`, `END_DATE`) VALUES (1, 26, '2019-03-19 07:00:00', '2019-03-19 15:00:00'), (6, 26, '2019-03-22 07:00:00', '2019-03-25 15:00:00'); "Sickness" table: …

I have storing major data in mysql and logs are stored in cassandra. Cassandra db getting heavier and difficult to do queries. So I want to migrate all my cassandra's table in mysql is it possible?

How can I write a C++ program that lists all students whose CUMMULATIVE SCORE is K or higher?

Hello, I wanted to ask about web hosting. I am new here and I want to know what is the best virtual server for it?

This simple isprime(number) function checks if the given integer number is a prime number and returns True or False. The function makes sure that the number is a positive integer, and that 1 is not considered a prime number. To find out if an integer n is odd one can …

I have a python script which extracts unique ip addresses from snort log but how to modify or use regex to extract IPs only if they are logged more than 10 times per second? more specific: using "regex", if the second (i.e 41 in this scenario) doesn't change for more …

I have a 2D array of characters (m x n) and i am trying to find all possible pattern that have a fixed length (example 5 characters) I have no clue how to start this if anyone could point me in the right direction that would be great!

In desktop application used in technologies like C#, .Net and MySQL I import data from large file (which is about 37 MB) to datagridview. The table from Excel file is in below:  After loading data from Excel to datagridview I'm inserting that data to MySQL database. Later when I …

I need an answer for this question ( write 2 program that takes grade as input and display the range of marks use the select case and if() A. 90 to 100 B+ 80 to 89 B. 70 to 79 C 60 to 69 D 50 to 50 F. F

Design a function named max that accepts two integer values as arguments and returns the value that is greater? For example: if 7 and 12 are passed as arguments to the function, the function should return 12. Use the function in a program that prompts the user to enter two …

hello everybody who can help with this task Now I will talk little about monoalpahapit cipher This is cipher is based on substitution the characters with another characters So in the encrypt.java file it counts how many the characters appeared in the cipher text , so in the picture that …

Hello friends I would love to have your help with a blocking for hours. In summary, I have to read an XML file and retrieve information with the VB.Net language. I would like to recover the "name", the "checkvalue" and the "compositekey" That's the structure of my xml file: <supercollection …

I have a C# project that creates a COM object for use with a POS terminal. Before I give it to the customer, I want to make sure that it will work as a COM dll. The RegAsm says it works. using System; using System.Runtime.InteropServices; namespace POS { [Guid( "0135bc5c-b248-444c-94b9-b0b4577f5a1a" …

I like Agile, I really do but a few times it has me walk out on the process as a few think that everyone must "buy in." That's just part of the problems I've run into and kind of glad I'm no longer on such teams. In fact if a …

Hi guys, I was trying to sort an arrayList using a comparator but I didn't have much luck, or at least it seems like there is something slightly wrong with it. I have these objects in the arrayList employeeCollection.add(new Employee("Dan", 112)); employeeCollection.add(new Employee("Tim", 2)); employeeCollection.add(new Employee("Rick", 11)); employeeCollection.add(new Employee("Jack", 19)); …

Hi, I have a .csv file in an AWS machine i wanted to convert that .csv file to .dat file? Can you please help me? Thansk, Swetha. G

I have an sql database names SubJobs with a column named Date. The data type is Time(7). I have a datagridview named DataGridView1. I want it to display a time like 04:30 PM. I’ve tried the following command to format the column but it gives me an error saying that …

Hello. I wanted to download a "Python IDE" called "PyCharm" to type code using the coding language "Python" for class. Here is the problem: When I open up the IDE called "PyCharm", it says that the "Python Interpreter" is not found. I suspected it was because I downloaded the "IDE" …

# Major Reasons # ## Unclear or vague project requirements ## Defining project specifications is the first step in executing a successful project. In their eagerness to please potential clients and close a deal, companies often overlook details that could derail a project down the line. ## Poor or limited …

The insurance business was conservative quite a long time; however, the appropriation of new advances isn't only a cutting edge pattern, but a need to keep up the competition. In our computerized era, Big Data innovations help to process various data, improve work process productivity, and reduce operational expenses. Learn …

As I continue my conversion from vbScript to Python I am finding the gotchas. For example... A lot of my utility scripts take a file name or a file pattern as a parameter. My script, bitrate.vbs, for example allows me to invoke it as bitrate file bitrate pattern Technically file …