Software Development Forum

Does anyone know how to list all variations of vector elements in C++ ? Is there a function like for permutations (next_permutation) ? tnx

[QUOTE] Hello friends i have tried my code to get the values from the database n display it in JTables but i am getting two errors.please help me. [/QUOTE] [CODE] import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.JScrollPane; import javax.swing.JTable; import javax.swing.JButton; import javax.swing.table.AbstractTableModel; import java.awt.Dimension; import java.awt.Component; import javax.swing.BoxLayout; import java.text.MessageFormat; …

So my coding is a temperature converter. I have gotten everything down the way that it is wanted by the assignment except for one part. When I run the program, put in a value and select the radio button for conversion, no output ever shows up. Was hoping that someone …

Hello, I have a code which has public void run() and I have no problems compile the code. When I try to execute the class file I get an error Exception in thread "main" java.lang.NoSuchMethodError: main. Does the command line execution needs main() ? Is there a way to execute …

Hello :) I am working on a CRUD app to directly change a MySQL database on a remote server. I have a section where I can edit or delete entries. I choose an entry from a JList (populated by a ResultSet in a loop), and a JTextArea populates with the …

This is a section of a program I made that keeps track of some money I'm saving. :cool: When I enter how much I want to add it saves what I enter to a file and updates the current amount I have saved, also in the file. When I enter …

Hello Community i am using Linux (fedora) gcc compiler. Normally i use Java but for the Interprocess communication part we got C. My problem specifically is that when I read from a file with the fread() function and save it in a char buff[somesize] I cant use printf() to display …

I am trying to find a way to create a transparent overlay that I can put anywhere on the screen, but that does not stop keystrokes and mouse events from passing through. If you have ever seen the program Camtasia, they do it... when you define a portion of the …

I have been thinking about order operations and generalized * in Python recently. I want to share some of my thinking here, even the topic is quite theoretical, considering the beauty and orthogonality of the language. [B]Point one[/B] You can do comparison with tuples of numbers in Python [CODE]>>> (0,0)<(1,1)<(2,2) …

[CODE]string name; char gender; string address; cout << "Enter the name : "; getline(cin,name); cout << "Enter the gender (M/F) : "; cin >> gender; cout << "Enter the address : "; getline(cin,address);[/CODE] I don't understand why this skips the input action for the address.

I'm testing to get my python script to still run if the smtp server it uses went down. I have a local mail server im testing this with. The issue is when testing it, i get a large spew of text. It checks all its libraries and such, untill its …

Okay so I'm making a basic spellchecker. I'm using a relatively small dictionary with about 1000 of the most common english words, all on separate lines in a text file. I'm on windows so I can't use the Linux dictionary. Anyways, It's not working. And I'm not quite sure why. …

I am beginning to write a tkinter program that will generate a DnD 3.5 Character Sheet. I haven't gotten very far. I'm using Python 3, and for some reason the sticky option of the .grid() method isn't working. When I run the code below, I get an error that says: …

Hello, pls can somebody have a look at my script and tell me why I can't get a value from d1? (print d1). Thank you for help. here is a script: [CODE]def subtract(): d1=file1(filename) dd2=file2(filename) res = dict() print d1 ## for key in d1: ## if key not in …

I have a JDesktopPane that opens and with a login it will add an InternalFrame with the InternalFrame 'innerclass'. The problem is that when I want to add another InnerFrame to the desktop I can't call the inner class to add an Internal frame because it wants me to login …

Say I have a file structure that looks like this [CODE]root folder/ main.py -folder a -script.py -folder b -img.png[/CODE] How could I load the img.png file from script.py? Should I just have a function in main.py that gets the path of the root folder, and then tac the 'folder a' …

I need to create a program for reading two numbers,printing them,confirming them and then summing them up. Here is my attempt [CODE]#include <stdio.h> #include <conio.h> void main() { clrscr(); int a,b,s; char c,d; s=a+b; printf("Enter any two numbers "); scanf("%d %d" , &a, &b); printf("The numbers you have entered are …

Hi, I trying to get the LAST modified text file in a folder, but unsure how to do it. I am using the following code:- [url]http://www.adrianxw.dk/SoftwareSite/FindFirstFile/findfirstfile3.html[/url] [code]#include <windows.h> #include <iostream> using namespace std; int main() { SYSTEMTIME SysTime; HANDLE hFind; WIN32_FIND_DATA FindData; cout << "A very basic FindFirst/Next demo.\n" << …

Hi there I am trying to design a flexi sheet calculator for work so that the users can use this program to calculate their working hours. They enter their times manually over the week. This is a calculator for them to use at the end of each week to calculate …

I have an MDIParent form with a button in it. I have it so that when i click the button it gets disabled. What i need help on is that, I need to know how to re-enable the button after i exit out of the form that opens when i …

HI guys how can i insert todays date in my query,my query is as follows: [code] myString = @"INSERT INTO wordTbl(word,text,date) Values('" + (string)row["word"] + "','"+richTextBox1.Text+"','"+DateTime.Now.ToString()+"')"; [/code]

how can i redirect from one form to another in visual studio.Or even better would be if i can just change few panels in the form when i click change or save button for eg. Thanks

Hello, I can't seem to get my program to build correctly. It seems I've finally gotten close because now it will build with no errors but with 2 warnings. I'm not sure what else to change in my code to fix it. Could anyone please help? Here's my code: [CODE]// …

Trying to create 20 files using ofstream. I could name each individual file on creation, file01.txt, file02.txt ect but wondered if it was possible to use a string variable in place of say the file name (file01.txt) and then use a loop to create the other files. Does the name …

Hi, I have the picture box in which i draw the rectangle (using graphics paint) and inside that rectangle I typed some name using label box and stored the work, have done When I opened the saved Image the position of text I typed in the label box not in …

Hello ..i am trying to get the factorial of large integers but i get 0 every time i try,,can anyone tell me why ,,,Thanks in advance . [CODE]#include<stdio.h> #include<conio.h> int factorial(int n); //main main() { int x,fact; printf("Enter a positive interger \n"); scanf("%d",&x); fact=factorial(x); if (fact==-1) printf("the number is not …

The Xml: Micfosoft(TM)'s modified Books.xml: The price attribute of the last book item was modified by me, now it appears two times, once as attribute of book and second time as a separate item inside the book item. [code=xml]<?xml version='1.0'?> <!-- This file represents a fragment of a book store …

Hi, I'm trying to iterate through an stl list object list(customer being my struct that holds the name, age and gender variables[customerList being my list]), but I'm getting an error. [code] void store::listCustomers() { vector<customer>::iterator it; for(it = customerList.begin(); it != customerList.end(); it++) { cout << it->name << endl; cout …

Now I HAve Written The following Programs [CODE] # include <iostream> # include <string> # define MAXSIZE = 300 using namespace std; bool findTitlePrice(string allTitles[300], double allPrices [300],int totalRec,string title,double price); string allTitles[300] = { "Book 1", "Book 2"}; double allPrices[300] = { 78.5, 66. }; int main () { …

So I have a boolean representation and inside that representation contains shapes. All the points of the shape must be true in the boolean array. For some reason its not putting the points on the array. Here is my code, please help me! [CODE] for (int d = 0; d …

Hey guys, I am having a problem with this program. It's actually part of an example from Michael Dawson's [I]Beginning c++ Game Programming[/I] This program pretty much randomized a number between 1 and 100 and has the user input his/her guess. The user can deduce what the number is each …

I am new new in OOP stuff.I have read the Herbert Schildt's C++ reference.But it just gave me the idea, about how it work.Not how to make it work. I am read few chapters from "Object-Oriented Programming in C++ by Robert Lafore"(old edition featuring UML 1, i guess).But it was …

Okay so I know this is probably an easy question but I am tired and I want to find a good way to do this. The code below will show what I am getting into (I'll explain more after it) [CODE]string loc = dataGridView1.SelectedRows.ToString(); int loc2 = Convert.ToInt32(loc);[/CODE] Anyway this …

Hi, I have to somehow modify a C-code by introducing a new array. We are in the chemical field: I have a small molecule (guest) inside the structure of a larger one (host). The existing array stores the square of the distance between a specific class of atoms: they are …

Hello I am trying to compile my project in VC++ Express Edition and get the error below. The project did compile fine before I reinstalled XP windows. But now when I have installed everything again, I receive this error. I dont understand what this can mean ? When clicking the …

Hi all, I am trying to do an action by clicking a button. So if I press the button 1, it will do action1 (showing an image), and if I press it again, it should go do action 2 (which is reverting action one, so disable the image), press again …

Been working on this for hours now. but most of it has been trying to fix these two errors. I've been googling my heart out and keep getting cryptic answers about the [B]const[/B]. Really need help. it's supposed to take in names of students and their scores, sort them, then …

i have this code which input 3 numbers into ascending order. i know make it 10 i just change the array size but then it is only ascending the numbers that were inputing that are under 10. how can i change it so it's any number. [code]#include <iostream> #include <conio.h> …

Hallo ... I am very new to Python programming & I have this Question ... I am asked to write a program to calculate the No. of words & the length of each (letters) in this sentence : (An Oligonucleotide is a short segment of RNA or DNA, typically with …

I am trying to teach myself C#. I recently completed this exercise. The code works the the way its suppose to. My question is how could I make this more efficient or is there bad programing practices? Thanks [CODE] using System; class testcontact { public static void Main() { InputWrapper …

Hello everyone I know that one cannot pass a parameter to destructor functions in classes. Is there a reason why this functionality was left out of c++, and is there a way to get around it? Thanks!

Hi Guys, I want your help with , how to navigate between forms.I have one form that has a drop down list.first list item is to add new list item.So when user select add new item it pops up a new form to eneter item and save it.When i save …

hello can you please help me in my registration...my problem is that i don't know how to check if the user input numbers, character, and letters....i want that if the user inputed this in password,example password=jem125@# this will display in my lblvpass="Strong password",if the user input only jem125 it will …

[CODE] char in[100], *temp[10],var[10][10]; int i, n = 0,fulval=0; double val[10]; var[10][]="ANS"; [/CODE] it should be simple but i cannot figure it out. I want to assign "ANS" to var[0][0,1,2] but it did not work?

Write the assembler instructions that will read the text document located starting from memory location 020AH. The last line of text document is specified by escape character ‘\’. While reading print out the text that starts from character 11 to character 20. Comment your assembler instructions. this is the assignment. …

hi, how to restrict the text box input to allow user to write only Arabic letters, without english letters or numbers or ponctuation symbols. i searched on the net and i tried this code but it does't do what i want [CODE] private void nomTextBox_KeyPress(object sender, KeyPressEventArgs e) { if …

Hey, I want to create an image from a file, and then have the file deleted (or moved) after. How could I achieve this? I tried using using(), streams, Bitmaps etc. I'm completely stumped. Any help would be great. Thanks Edit, the problem is that I cannot delete/move the file, …

Hi, i'm new to Python and i'm currently following the "How to Think like a Computer Scientist" tutorials. I'm at Chapter 4: Conditionals and doing the last exercise where i need to create six colored houses on a black background. I've successfully created the house at the bottom left, but …

I m new to programming .Can anybody tell me where do we use Nested Class in piratical(i dont need the code )? and Why do we use it with out using regular class Plz explain me

hi everyone...i needed to find a code that opens a database directly....kindly assist. Regards,