Software Development Forum

First off this is a homework question, please don't do my homework for me as nice as that would be... I have to make a program that can search a library for an author or title from a file and output all the matching lines. I am very close but …

In DataGridView, how can i input data then add row

Hey, I'm trying to create a simple Yatzy game in C++ (I'm new to programming) anyway here is my code: void gameMechanics(int& numberOfPlayers) //NumberOfPlayers are not used in this function at this point. { int diceResult = 0; int fiveDices[4]; string throwDices; cout << "Throw dices?(y/n): "; getline(cin, throwDices); if(throwDices …

i have just started learning c++ and i like to know after writing a c++ code how do u process it to become a software so that you can intsall it in another computer and use it

Can someone help me complete my code? I am having trouble with it and I need some input. //#include "bigint.h" #include <stdio.h> #include <stdlib.h> #include <assert.h> #include <string.h> /* Create and implement a bigint data structure that can represent integers whose size is limited only by the memory capacity of …

Hello I need to do it in ansi c Can't seem to get it to work at the moment. unsigned char *s scanf("%x", &s); I then want to do if statements based on the amount of characters contained in the variable s. Whats the easiest way to get this? An …

Hello everyone, I am working my way through the Forger's Win32 tutorial and am on the "Creating a Simple Application" part currently. I am using C++ (instead of C in the tutorial) and the WinGW compiler. When I compile the below code I get this error: main.cpp: In function 'LRESULT …

A question that I came across: Q: Can you pass a double to a method when it's argument is a float? A: No. Regardless of the double value, a double-sized variable is too big to fit in a float, so it can't be implicitly cast. Doubt: Shouldn't narrowing happen implicitly?

Program PRG3; Var { Declaring Varaibles } FileIn:text; FileOut:text; SECTION_NUMBER:string[5]; STUDENT_ID:string[9]; LAST_NAME:string[20]; FIRST_NAME:string[10]; RAW_SCORE:real; STUDENT_COUNT:integer; AVERAGE_SCORE:integer; AVERAGE_GRADE:integer; Percent:real; more_rec:boolean; {end of file flag} Computed_grade:integer; Grade:real; procedure read_record; begin if not Eof(fileIn) then readln(SECTION_NUMBER,STUDENT_ID,LAST_NAME,FIRST_NAME,RAW_SCORE) else more_rec := False end; {read record} procedure print_header; begin writeln(fileout,Space(14),'COMPUTE GRADE'); writeln(fileout,space(17),'SECTION','SECTION_NUMBER'); writeln(fileout); writeln(fileout,space(9),'LAST_NAME',space(11),'FIRST_NAME',' RAW_SCORE',' COMPUTED_GRADE'); …

This is a short bit of code that shows how to implement sorting on columns in a details-mode ListView. Suggestions for improvement are always welcome. One possible improvement would be to modify the column headers to indicate which column is being sorted and in which direction.

#include <iostream> #include <string> #include <cmath> using namespace std; //global varibals: char entered_characters[9999]; int direction_of_rotor1; int direction_of_rotor2; char alphabet_of_rotor1[26]; char alphabet_of_rotor2[26]; char rotor1_backward(char Letter); char rotor1_forward(char Letter); char rotor2_backward(char Letter2); char rotor2_forward(char Letter2); char print(char print_char); int main() { cout << "This is enigma machine:" << endl; cout << "*NOTE:This …

I am new to python but have experience with Java. I am creating a bouncing ball program which throuhg a for loop creates a large sum of bouncing balls. I appreciate any help! Thank you import time from random import randint x0 = 10.0 y0 = 10.0 ball_diameter = 15 …

I currently found a piece of code on a website but i can't get it to work it always reports fail. Pls help. Private Function FindImage(Image1 As Bitmap, Image2 As Bitmap) As Point For y = 0 To Image1.Height - Image2.Height - 1 For x = 0 To Image1.Width - …

I am looking for good C# .NET 4.0 database tutorials. I want to learn working with a database in C#, i already know SQL from another language PHP. Thnx

Hi everyone well currently I am working on a simple malloc and free implementation but I am facing some problems . I get a segmentation fault this is my output inserting node 0 0xc87000 inserting node 1 0xc87014 inserting node 2 0xc87028 inserting node 3 0xc8703c inserting node 4 0xc87050 …

Hello I am new here as well as with vb2008xpress and I have a question. I have a datagridview with 12 columns and 30 rows I want to use as a scoreboard for a game (no need to input or save data). Columns are for the players and rows for …

class Nines { public static void main(String[] arguments) { for (int dex = 1; dex <= 200; dex++) { int multiple = 9 * dex; System.out.print(multiple + " "); } } }

I currently use this to serialize data, write it to shared memory so that another program can reconstruct it and use it: template<typename T> void Serialize(unsigned char* &Destination, const T &Source) { CopyMemory(Destination, &Source, sizeof(T)); //Destination += sizeof(T); //Not sure if to add this or not. } template<typename T> void …

soooo. i saw a working code for a hindu arabic - roman numeral converter. the thing is. i need to fully understand the code. so i need someone who could explain the code clearly to me. line by line as for me to fully understand the program. newbie here. you …

Hi, I have an object subclass that I am using with a cusom __repr__() method. class NewClass(object): def __repr__(self): return ', '.join('%s=%s'%(k, v) for (k,v) in self.__dict__.items()) This works fine (leaving out some more details about my program): test=NewClass(a=1,b=2) print test a=1, b=2 But what I really want for reasons …

I'm learning about Classes and this thing is driving me crazy. Whenever I run this, it will use the __del__ object even though I never used del droid1, del droid2, or del droid3. Can someone please help? class Robots: '''Represents a robot, with a name.''' #A class variable, counting the …

/** @file Graph.h */ #ifndef GRAPH_FLIGHTFINDER #define GRAPH_FLIGHTFINDER #include <iostream> #include <fstream> #include <sstream> using namespace std; //graph implementation class FlightGraph { //A Node class to create pointer for graph implementation class Node { public : string name; double cost; Node * next; // constructor Node() { name=" "; next=NULL; …

i have a listview and a combobox. i need to display all my column headers from the listview as items on my combobox. also i need to "sort" the data of my listview according to the selected item on my combobox. ex: my listview contains the column headers, "name", "address", …

So I have coded this program on formula method . #include <iostream> #include <cstdlib> #include <cmath> using namespace std; int main() { int a , b , c ; cout << " Enter the values of a , b , c " << endl; cin >> a ; cin >> …

Hi all, thanks in advance for the help. I have placed an "X" on the first JButton and what I need it to do is this... Once the user has clicked the button with the "X" it needs to disappear and reappear on a different button. This process needs to …

Hello, I've a file which contains names and grades of students, and I'd like to write a program which can sort their grades (like midterm 1,midterm 2) according to user choice. I wrote as far as the choice part and opening the file, yet I don't know how to make …

Which of the following statements will display "Problem!" if bit 2 of flags is a '0'?

Hi budy can you explain anyone which i have writen in the article title

Hello everyone, I have task "Write a program that calculates N!/K! for given N and K (1<N<K)." I want to ask is this the right solution ? using System; class NandKFactorials { public static double fact(double x) { double result = 1; for (int i = 1; i <= x; …

I am trying to implement periodic boundary conditions for 2d lattice. I did: int boundary2d(int xpos,int ypos,int stepx,int stepy){ int x=4,y=4; //grid size int **matrix; //the grid matrix int i=stepx+xpos; int j=stepy+ypos; if (i<0) { do { i+=Nx; }while (i>Nx-1); } if (i>Nx-1) { do{ i-=Nx; }while(i>Nx-1); } if (j<0) …

Hello, Please help. Below is my assignment and the code I've got so far. I'm still getting errors on overloading the member function on the printDay and prevDay. Design and implement a class dayType that implements the day of the week in a program. The class dayType should store the …

how to code this.. in 200 to 1 i need to decrease by 3 and displaying odd or even numbers.. can you help me.. ty :)

hiii guys i am in the second year from computer science i take c# languge programming but the proplem i donot know how i need to be good programmer and how i start in this and what i take so plz i need help from u guys to tell me …

I have a problem i wrote a code and copyed some code but now my sprite dosent move anymore....and i dont know why # Import a library functions called 'pygame' import pygame from pygame.locals import * # Initialize the game engine pygame.init() # Define some colors black = (0, 0, …

Rows cannot be programmatically added to the DataGridView's rows collection when the control is data-bound. this is an error msg appear when i need to add a new row to datagridview, how i can add new one ??? DataGridView1.Rows.Add()

whenever I try to run it I have a compile error in connecting my database this is my code Dim con As Adodb.Recordset Dim conn1 As Adodb.Connection Private Sub mygdb() Set con = New Adodb.Connection con.CursorLocation = adUseClient con.Open "PROVIDER = Microsoft.Jet.OLEDB.4.0;Data Source =" & App.Path & "\enrolment.mdb;" End Sub

Hello! I'm relatively new to C++ and I'm learning about classes and objects. I've learned most of what I know from YouTube tutorials and some books. Well, in almost all of those, they mentioned that it was poor programming practice to make all your data members public, inside of a …

Hi guys, I'm learning C and I still don't have some concepts very clear in my mind. I have to create a program that get the values from ARGV[] and puts into a vector: the program would work like that: ./program file1 file2 file3 My idea was to do something …

Hello People. I would like to ask you're assistance with a little problem I am having. When I execute this code: string sql2 = "INSERT INTO worlds (worlds_ID,worlds_active,worlds_name,worlds_x,worlds_y) VALUES ('', '1', 'Test', '250', '250');"; MySqlCommand cmd = new MySqlCommand(sql2, OpenCon()); addtolog("server", "World Created"); it does not make the new row …

Hello, I am trying to read text from a simple text file. The text file contains a list of emails and zipcodes, formated as follows: email@site.com;zipcode where zipcode is 5 integers. I am having an issue with the getline function, my error is "no instance of overloaded function". Could someone …

I want enter number digits into textbox and textbox will automaticaly convert this digits itno currncy like this if i want enter 120 , i want textbox convert it 1,20 how to make code for it ?

In my project I've 8 edit boxes and i need to set each box with different font. But my code is setting all the boxes single font.. So how can i modify it?? void CTrail3Dlg::OnBnClickedButton1() { UpdateData(TRUE); CFontDialog dlg; // get font for current dialog, just to fill in LOGFONT …

Hi guys, I am developing a software and I want to make it in good appearance!!!! As you see most of programs have a beautiful skins, I want too!! I have google it in days and I found a dll file called "DevComponents.DotNetBar2.dll" ( may you have heard about it) …

Hello everyone, I stumbled upon a video about the monty hall problem, which I found very well explained, and a lot of comments below the video that were against the conclusion that it **is better to switch**. To clarify, I wrote this small program that simulates the game and allows …

I'm trying to write a script that will search a page for mp3 files, and download the first one. All is fine, but when I'm finding the links the first two are not mp3 files. At the moment I'm doing: for link in page.findAll('a')[:3]: f.write(link.get('href')) This finds the first 3 …

Hello, I have a question that can be deducted from the title. When to use C++ inline functions and when not? Should I declare my constructors/destructors as inline? Should I declare functions that have at least a loop as inline? People say that declaring *small* functions as inline is a …

Hi, I'm writing a code to print weekday (ie: mon, tue, wed, thurs, fri, sat, sun) when user enter day/month/year. However, I do not know why this code doesn't work right. I didn't get any error. It actually works, but it just printed "Monday" for whatever date I putted in. …

Hi I have always been a windows user but a few months ago switch to Ubuntu Linux. I have started learning Python and want to find out from experienced developers what the best way is to setup a development environment on a Ubuntu machine. I am running Ubuntu 12.04 which …

I have been struggling with this for awhile now. lol I have no code to post because I haven't even started it. I can do the insert statement just fine from vb.net code to a sql database. That's fairly easy. However to do an update statement from a combobox to …

This post is a followup to an older dicsussion [on recordmanaging](http://www.daniweb.com/software-development/python/code/429753/custom-named-tuples-for-record-storage). I am writing this to share with colleagues, so it may be a bit fluffy and not straight to the point. I apologize to all the experts. Good programs always start by managing data in a flexible and robust …