Software Development Forum

i have a little program that searches for[URL="http://en.wikipedia.org/wiki/List_of_perfect_numbers"] perfect numbers[/URL]. now it took it 36 minutes to get to the 5th number(and last one for longint) which is 33550336. as it worked i noticed in the task manager that it only used 25% of cpu the whole time and the …

hello everyone i am trying to make a list that contains name with following option add till name write out names in the list remove name from the list sort the list look efter a name from the list save the list to a file please i will appreciate if …

Hi, I have a text file with characters. I must able to read the length of characters in the file by every line and count the frequency of each characters for each line. I have tried on writing this program but this does not work. Can anyone help me on …

Hey guys, This is my first official post on DaniWeb :) I am new at programming in C++ using visual studios, and right now I am fooling around with storing user input into Arrays. I am having a problem with my code, using an array size of 3 to store …

It,s me having the same problem.. I want to pass some parameters from the main method to some other method. u cannot declare any variable names or pointers. I'm having an array of int with size 12500. if u want any variable or a pointer, use array blocks for it. …

write a program to get a 2 d character array and arrange them in alphabetical order. i've tried it,but its not getting compiled. im jus a beginner.so, someone plz help me. given below is my program.... #include<stdio.h> #include<conio.h> #include<string.h> struct st{ char a[5][10]; }ppl; int main() { int i,j; char …

I can understand that the subtype covariance relation should not hold for parameterized types, but why should it hold for arrays ? One of the books (Khalid Moghul) said [QUOTE]This relation holds for arrays because the element type is available at runtime[/QUOTE] How does the element type being available at …

I have a combobox called combobox1 and I dont know how to save the selection. For example if i selected Sub Compounds, how would i save this so when i loaded it again from the hd Sub Compounds would be selected.

when it asks for the output file, what is it?

Okay, this is just a simple trick to determine whether CAPS is pressed because some people here use API to determine whether the CAPS Lock is pressed. [QUOTE] KeyDown and KeyUp don't detect exactly the same information as KeyPress. KeyPress detects a character in its KeyAscii parameter, but KeyDown and …

Does anyone know why the SessionBean in the netbeans keep disappearing? I did nothing but some hard coding. But when I go back to the design page, I realised that my SessionBean is no longer there. In fact it has happened several times and even resetting netbeans doesn't help. Is …

I need to add to my project several two columns tables of data (from MS-Excel) I have saved in txt form, and I suppose I want to manage them in the form of lists or arrays. Which is the easiest way to incorporate those files into the project?

How do you set the FileSystemWatcher.Filter to check only two files. Here's my code that doesn't even work. [CODE=vb]watcher.Filter = "*.txt|*.ini"[/CODE] Thanks Alot

I'm trying to write a script that downloads and image off the net with wget. The script should save the file named as the date it was downloaded preferably with a suffix. Any ideas on how to accomplish this using wget?

Has anyone got any clever tricks for determining the size of the contents of a directory without doing the obvious (descend recursively and count bytes)? I'm trying to make a progress bar happen for a recursive descend-read-and-load of a directory, and it would be cool if I could track it …

[code] Imports System.Data Public Class Section Dim con As New OleDb.OleDbConnection Dim ds As New DataSet Dim da As New OleDb.OleDbDataAdapter Dim dv As New DataView Dim inc As Integer Dim maxrows As Integer Dim cmd As OleDb.OleDbCommand Dim constr As String Private Sub Section_Load(ByVal sender As System.Object, ByVal e …

Hi All, I have a combo box in a form, I want to fill it with names I have stored in a database. I know I have to use the fill command, but I am not sure what code I need to use. I imagine I need to place this …

Hi there i wanna make a query like this [CODE]SELECT * FROM accounts[/CODE] accounts table has 3 columns ID Name Password so i wanna get every column value in variable like char name= column[name]; so i can cout << name ; is there away to do it?

Hello All, I was wondering how to click a button on the internet or another program via a program in visual basic 2010. An example would be: Have a program being able to click the "Search" button in google or the "I'm feeling lucky" button??? Does anyone know how to …

I cannot copy 2d array. There are no errors in my error list. What is wrong with my code? The problem might be located in create(). Thanks in advance. Here is my code. [CODE]int **map void randomize(int numberToSelect,int range, int *list){ int* remainingNumbers = new int[range]; int* chosenNumbers = new …

hey. How to load and save to XML. xml like: [CODE][track1] name= url= starttime= [/track1] [track2].... [/CODE] and how to load only name to listbox without all link.

What are some hints or tips on writing efficient functions? I read about converting the code to assembly, and I've also read about the stack and functions. However, I fail to understand how data stored higher can be accessed before the end on a FIFO stack, as any local variable …

Dear team, I have done some java programs .Still i am confused what is the difference between j2se vs j2ee vs j2me . Can any one explain what is the diffrence . I want to do sun certificate in java.Can any one have idea about the sun certificate. Thank you, …

Im pretty new to Python, so i apologise in advance. My main goal is to parse a csv file (as per below) and to create a list named based on column 5 which includes values from column 7 as the elements. 01/11/2010,DEB,12345,12345,CREDIT CARD,,44 01/11/2010,DEB,12345,12345,TAKE AWAY,,20 01/11/2010,DEB,12345,12345,TAKE AWAY,,22 01/11/2010,DEB,12345,12345,TAKE AWAY,,24 The …

Hey again ...:P Now i have problem with save & load from/to text file. [CODE]private: System::Void załadujPlaylisteToolStripMenuItem_Click(System::Object^ sender, System::EventArgs^ e) { OpenFileDialog^ dig = gcnew OpenFileDialog(); dig->Filter = "PlayList(*.PLS)|*.PLS"; if(dig->ShowDialog() == System::Windows::Forms::DialogResult::OK) { listBox1->Items->Add(IO::File::ReadAllText(dig->FileName)); } } private: System::Void zapiszPlaylisteToolStripMenuItem_Click(System::Object^ sender, System::EventArgs^ e) { SaveFileDialog^ dig = gcnew SaveFileDialog(); dig->Filter = …

hai i want to embed browser in my java program i google and find JDIC.I dont know how to use it. So i really wanna ask can i use Jdic to emmbed browser in my java program. Is there any good tutorial. .

So, this is probably a bit abstract, and I apologize if the title was imprecise: I have a simulation class, which contains a vector of objects of class A, the member functions of which depend on parameters a,b,c: [CODE] class SIMULATION { vector<A> array; }; class A { A(a,b,c); } …

Hi I consider myself fairly new to VB.NET, so maybe you could help me here. I have a bindingSource which is bound to a dataset. I have a filter on the bindingsource. My problem is that when I add a new row, with BindingSource.AddNew, even if it does not match …

Hi, DO somebody know how to remove the rectangle graphics, I'm able to draw a rectangle graphics using this code: [CODE]Dim g As System.Drawing.Graphics Dim myPen As New System.Drawing.Pen(System.Drawing.Color.Red, 2) Dim myRect As New Rectangle(x1, y1, x2, y2) g = Me.CreateGraphics() g.DrawRectangle(myPen, myRect) g.Dispose()[/CODE] Is it possible to remove this …

2D vector data types should be different or same only .. for ex:: for one sub script with int data type and with another subscript with class name is it possible to declare with diff. data types

Hi, I am new member. I am not from any technical background but still like very much on how to develop application software and doing research regularly. My question form expert like you is Is there any powerfully software available that automatically create software without and coding knowledge. still conceptualizations …

Hi everybody I wanted to retrieve data from sql server and save them in arrayList I use the following format [CODE] sql="select bookid,bookname from BookTable"; Sqlcommand cmd=new (sql,conn) // I define reader here while(reader.Read()) { list.Add(new book(reader[reder.GetName(0)],reader[reader.GetName(1)])); } [/CODE] in book class I build a constructor [CODE] public book(int id,String …

I'm trying to use lucene in my project to search for people. I created the index using records from a db table of people (firstname, lastname, social, phone, address, etc). However, in the db, some of these fields are missing (ie, no address supplied). In my project, users can search …

hi there, i have a text box in a form to enter a float value.say that the user types in 1234567789.09 it should be formatted and display as 1,234,567,789.09 how can i do this. i am using a text box. please can someone help me in this or give me …

I have spent 4hrs+ trying to figure out why I can't catch an IOError. Most of the solutions I find, seem to be python-2 specific. I'm using python-3. Take a look at this: [code]def getfile(cfg): try: with open(cfg, 'r', encoding='utf-8') as tmp_file: tmp = tmp_file.read().strip().split('') except IOError as err: print …

Hey guys! Me again. I want to change some text inside a textbox when a checkbox is checked. I tried many things, but none seems to work. I need that, when checkbox gets checked, the textbox value gets deleted from backwars until a dot. Then, place another predefined text immediately …

Hi! my dear all. [CODE]#include<iostream.h> #include<stdlib.h> #include<fstream.h> #include<conio.h> #include<stdio.h> class payroll { private: char address[50]; float basic,allowence,deduction; public: void add(void); }; void payroll::add(void) { clrscr(); int e_no,choice; char name[50],ch; payroll e; cout<<"Enter Employe Number: ";cin>>e_no; cout<<"Enter Employe Name: ";gets(name); cout<<"Enter Employe's Address: ";gets(e.address); cout<<"Enter Employe's Basic Salary: ";cin>>e.basic; cout<<"Enter Employe's …

Hi pals, I try a code in my Dev -C++ Environment v 4.9.9.2 in Windows XP. I save file as "satwant_mysql.cpp" in E:/C++/ Directory.... [CODE] #include <mysql/mysql.h> #include <stdio.h> int main(){ MYSQL mysql; MYSQL_ROW row; MYSQL_RES *result; unsigned int num_fields; unsigned int i; mysql_init(&mysql); if (!mysql_real_connect(&mysql,"localhost","root","","MyDatabase",0,NULL,0)) { fprintf(stderr, "Failed to …

why do we need data structures, if it is a way of storing data in computer in an efficient way, then the computer itself has the ability to store the data in an efficient way, why do we create linked lists n other stuffs. why do we use stacks,trees n …

HERES THE CODE: [CODE]#include <iostream> #include <conio.h> using namespace std; int main() { int a,b,c,d; cout << "Enter Four Digit positive number: "; a = getch(); cout << char(a); b = getch(); cout << char(b); c = getch(); cout << char(c); d = getch(); cout << char(d); cout << "\nOutput:\n"; …

Can someone help please. I have search all the forums about my problem and i cant find answer to it. -Decided to post a thread. Its about making a lotto program in C using only loop control structures and decision control structes( if..etc.). and most importantly random function. ' :-/Don't …

If the main() takes 3 arguments i.e. int argc,char * argv[],char *env[] and SINCE C DOES NOT SUPPORT FUNCTION OVERLOADING ,y does the c compiler does not give error for simply void main() //that is no arguments at all OR void main(int argc,char *argv[]) //2 arguments

Hi everyone. I'm facing a tricky problem with keyboard hooks in visual c++ (MFC). I have two global keyboard hooks set in my application and everything works smoothly when windows explorer is running. But my application needs to run without windows explorer (in kiosk mode), so i replace explorer.exe with …

Hi, How do I create ICON in vb6?

Hello. How can I protect my application against Memory Editors? Like, Cheat Engine, Debuggers, etc.

Can any one please tell me how to display the result in notepad For Example My code : import urllib a = urllib.urlopen("https://www.google.com") Source = a.read() a.close() print Source raw_input("*************Press Enter to Exit****************"); i have to display the result of it in a note pad.

Hello everyone. I've been trying to implement a linked list in C++. I found this implementation on the web, where they created a struct for the list's nodes. When trying to add a new node to the list, I get this error: [B]List.C: In member function `bool Linked::addNode(Point)': List.C:23: error: …

Hi everyone! :) Can somebody pls help me out here. Im still a noob at programming. Im creating this program in vb.net which is supposed to be used on a lan, say we have PC 1, PC 2 and PC 3. The thing is, after the user selects which pc …

Dear all, I need your help on tis programming assignment I have. I need to save all the atrributes information to a signle file. I need to have 2 options : Save to a default name backup.bak and to a users filename choice. I have found this code in an …

Code given below, suppose to give hourly pay * number of hours + if hours greator then 37 then calculate rest with given rate (overtime) and display final result but its just multiplying pay rate hourly with pay rate for overtime hourly and i made it in VS 2010 windows …