Software Development Forum

Hello, I have a code which generates QR codes from a csv file: #Importar base de dades pathFile = ('E:\Usuarios\Daniel\Documents\APNAE\QR\Llistat_socis_alta.csv') socisAPNAE = pd.read_csv(pathFile, delimiter = ';', encoding='ISO-8859-1') #generar codi QR for i in range(0,len(socisAPNAE.index)): soci = socisAPNAE.iloc[i,1:6] nom = socisAPNAE.iloc[i,1] nom = nom.encode('latin-1') qr = QRCode(version=20, error_correction=ERROR_CORRECT_L) qr.add_data(soci) qr.make() im …

I have an array of seven numbers and I would like to sort the numbers from the smallest to the largest. How should I do it?

So I have like 20 errors in here can someone tell me what I did wrong or how I can fix them? I'm trying to write a program to get the area and perimeter of a triangle. import java.util.*; public class myTriangle3 { //Declarations static double area; static double perimeter; …

Sup peeps, hope you guys can give a mate a hand with this default constructor problem. I get this error when i instantiate a class: error LNK2019: unresolved external symbol... This is my LavaLand.h ... class LavaLand { highscore &h; public: LavaLand(); void setup(); }; ... LavaLand.cpp void LavaLand::setup() { …

Ok so first off, I've recently returned to C++, and I'm very new to both OpenGL, and Code::Blocks IDE (used to use Bloodshed Dev before) .. so please don't flame me if there's a basic solution to this I'm trying to read a ".asc" file which has the vertices of …

Please suggest alternate code for Traingular matrices. #include <iostream> using namespace std; int main(void) { int rows = 5, cols = 5; int **arr; // allocate and initialize the array arr = new int * [rows]; for (int r = 0; r < rows; r++) { arr[r] = new int[r …

This is writen using vb.net and sqlCe. I'm interested how this could be written in SQL server 2008 and vb.net. Dim rs As SqlCeResultSet = cmd.ExecuteResultSet(ResultSetOptions.Updatable Or ResultSetOptions.Scrollable)

Hi I wrote a Singleton class but i got an error while controlling instantiation captain.h #ifndef CAPTAIN_H #define CAPTAIN_H #include <iostream> #include <string> class Captain { private: Captain(); Captain(const Captain&); Captain &operator=(const Captain&); std::string name; public: //Controll Instantiation static Captain &GetInstance(); //Set Name of the Captain std::string GetName(); //Get his/her …

i have few txt files in one folder. i need a program that will open that folder and read all files one by one to find a string and give me output. so far i got code to do this from only one particular txt file. but i cant make …

Hi, I have written an application that identifies if the fisrt number entered is a multiple of the second number. The application also displays the multiplication table of the second number. What I am now trying to do is to identify which postion the multiple is. For example, 5 * …

Am trying to build a function that will take string, sub_string that will be replaced, and new string that will replace that sub_string. Now before you all go with strstr, i dont want to use <string>. Anyway I got my code working to find a index of a char array …

What I want to do is add videos to a list available for rent. In the “main” form when I click “Add” then the frmAddVideo appears where I need to insert all the video’s information. (This works 100% but…) In the frmAddVideo form there is a comboBox with values “Yes” …

In the program below what is the difference between rand and srand? My book says that rand returns an int between 0 and RAND_MAX, which is never smaller than 32,767. Yet this code returns a number from 1-6, how is that? I see the line `( rand() % 6 ) …

Hello great programmers at this website. Hopefully your day has been good so far. I was wondering if you could help me with some Java errors related to the header of my program that I am doing for an assignment. Thank you millions for your help. Here is the code: …

What should i study to master data structure? do you any sugestions? im a newbie programmer.

A large program has been written for a company which rents out properties to tenants for long or short periods. There are separate data files which hold information about A the tenants B the properties C the payments made by tenants D the payments made by the company for the …

Hello All, I am developing an application in WPF in which I need to set a generic input bindings for TAB key for every field present in the view. I somehow managed to create a common method but now I wnat to retrieve on which field the TAB key has …

Hi All, Just wanted to know on how to dynamically set the focus on a TabItem of a TabControl in WPF at runtime using bindings etc. Thanks

There used to be a Python module called pyglet that allowed graphics and sound. I can't find it anywhere.

I have underconstruction project and my table is made via VISUAL DATA MANAGER, and Im using the DATA CONTROL OBJECT as my connection...Surprisingly, this error appeared when I click the button where I am calling a form that is connected to the database....What's the cause of this error?......Please Help....

Hi guys I am trying to build a simple calculator but I cant get the answer to show in the output in Jtextfield here is the test // Testing Calculator import javax.swing.JFrame; public class CalculatorTest { // Main method public static void main( String[] args ) { Calculator calculator = …

hi, i have written a function that can search through a folder and display a picture in a new window if the file is present but i always have to add the image file format or extension before the function can work. is there a way i can work around …

Hi, I have a class named 'roomOne' and another named 'StoneAdventure'. 'roomOne' inherits from 'StoneAdventure'. Heres the Problem: Whenever I create an #include "roomOne.h" in the header file of 'StoneAdventure' I get an error C2504: base class is undefined. Note: Everything works fine if I remove the #include "roomOne.h" from …

Hello, I have this C# code but I get the error in the title. on the "FromFile" part. I want to simply publish images in my PC on a WPF application. How can I get rid of this error? Thanks. Code : using System.Drawing; namespace Photo { public partial class …

When i install window form application another machine database not connect ERROR :- Unhandle Exception has occurred in your application. A network related or instance- specific error occurred while establishing a connection to sql server. the server was not found or was not accessible. verify that the instance name is …

Hi, I have a `string *input;` and that variable is initalized with `getInput();`. I initialize input in `setup()`. `setup()` is run once. this is where my problem is: I'm looking for a better logic that let me initialize `input` without getting a prompt which came from `getline(cin, line)` that is …

i want to import excel file into sql database in window form application c# plz give some easy and right code

Hello, I've been trying to read txt from a file, and breaking each line into words and storing them in Array. Example. txt file C001 John Smith 999999 C002 Mary Agnes 888888 Here is my code. public class Customer implements iCommand{ static List<Customer> cust = new ArrayList<Customer>(); static private String …

For this programming exercise, you may use ONLY these instructions: and nor or ori sll srl xor Start a program with the instruction that puts a single one-bit into the low order bit of register eight ($8 or $t0): ori $t0, $0, 0x01 Now, by using only shift logical instructions …

Hello, I used to use Code::blocks and eclipse for code editing, but started to find them slow. I started searching for lightweight IDE's and found that the prevailing opinion is that if you are looking for lightweight code creation you should use vim/emacs, gcc and the other gnu utilities. I …

Hey everyone, Just trying to add to a scoreboard from a different class. The problem is that i'm not sure how to add to a scoreboard that has been previously defined in a different class. As i've instantiatied i'm assuming that has made a whole new Game (with a new …

Here is one that is stumping me. I have an Access 2000 database backend. It got corrupted. It is a large database. I compacted and repaired it and a record came up corrupted. There was a compact error table created that has a binary column in it. The binary column …

hey there i am trying to make quadratic equation problem solver.

Hey guys, Im implementing a binary tree in C and i add values one by one into the Binary Tree , Once i select the Function to display the minimum and Maximum values the Program Crashes , Please help me fix this , greatly appreciated. Thanks . this is my …

I am thinking to develop a program/software to simulate autonomous driving car (artificial intelligent agent) using java. A car(agent) will move forward avoiding the obstacle in the dynamic environment. How do i start?

I Need To Move a Record from one Table in a Database To another Table I am using ado in vb 6.0 plz help me!

Hi guys when i search record between two dates it works ok success but you must enter date from and dateto first to to make search i will show what i need from this example I need to search dynamic by 4 textbox 1-datefrom 2-dateto 3-EmployeeNo 4-EmployeeName but search i …

New to VB.NET :( I have a MDI form that has a menu item that can change the environment the application is running in (e.g. Prod, Test, Dev, etc.). The environment name and folder are written to the statusbar on the MDI from. There are several other forms in the …

hi all, i have started recently learning c# and when i do some code using the hashtable, i could n't get the value of a particular key we can get a value for a particular key but do we can do the verse ?

Hi I am new in WCF and i am working on a desktop application in which i want to get data from my database on webserver where my domain is hosted. To connect to my database i must whitelist my ip, i want to get data from anywhere with any …

For this programming exercise, you may use ONLY these instructions: and nor or ori sll srl xor Run the programs by verifying the value of the PC is 0x00400000 (right-click the field and use Change Register Contents to set it) and then single stepping (pushing F10) and observing the results …

Good day to all! I'm totally lost here. I am just beginning programming lessons by reading How to Design Programs and use Dr. Racket. I bump into C++ and got confused which one should I learn first. Or should I study them at the same time. Please advise.

I want to select a node based on an attribute value. I am using C# program to derive on the attribute value which is stored in a variable. The below code returns null. How can I compare the attribute value against a variable? string posSecond = "test"; SelectSingleNode("//viewentries/viewentry[@position=posSecond]"); Thanks!

Hi Everybody. Was hoping someone could clear this up for me. My understanding is not good in this area. The below code simply reads a string from a text file two characters at a time. It then outputs them to console then casts them to an int and then outputs …

(The power station problem) A power station is on one side of a river that is one-half mile wide, and a factory is eight miles downstream on the other side of the river (see Figure 7-21). It costs $7 per foot to run power lines over land and $9 per …

Hi There, This comes under a few forums on DaniWeb, so I've guessed and posted it here... I have two computers, both connected to the internet and running Windows 7 (Home Premium + Professional). One is my main one, the other is one I do not use. If I installed …

I am in the process of converting a program from vb 6 to VB.Net. I am taking a large amount of data and placing it in the proper sql collum. Any help will be greatly appreciated. I am getting this error code here: If ExistsInrsTemp("NextMthDue") = True Then If InStr(NullSafeValue(rsTemp, …