Software Development Forum

I've created a user control with a simple text box and a corresponding label and added a few custom control properties. When added to a form, I'm trying to loop through all control of this type and evaluate the custom property. In the below, the cntl.MyCustomProperty is not recognized. I …

I'm passing a this pointer in my constructor initialization list for use by a base class and VC9 gives me this warning about it... main.cpp(124) : warning C4355: 'this' : used in base member initializer list The program runs perfectly as compiled by VC9 Pro or Code::Blocks 10.05. In Code::Blocks …

Running: Windows 7 Home Premium. I am not sure if I am posting this in the correct board, so please move this if I am incorrect in my post placement. I am trying to set Allegro up, for programming a 2D game in C (which is why I chose this …

I am trying to create waypoints from a given file waypoints.txt I first created the waypoint class [CODE] import java.io.*; import java.util.*; import java.util.HashMap; import java.util.Iterator; public class waypoint { int x; int y; int height; int cost; int gold; int mapX; int mapY; public waypoint(int myX,int myY,int myHeight,int myCost,int …

In all the new IDEs when using open and close curly brackets the auto-formatting usually indents, and uses the extendable block (with the + sign) even if it is not necessary. For example, I like when all my functions have there own little extendable block but when I place them …

When I am reading a csv file to dataTable and populating a Datagridview I am getting problem that one blank row inserted into datagridview why? what wrong with my code please somebody help me. below my code Private Sub ReadCsv() Dim myTable As DataTable = New DataTable Dim i As …

Disclaimer: I am not looking for a full answer to this lab, only hints. I know people get frustrated when others ask to do their homework for them. ;P Hey guys - first post here, although I have used this website many times to assist me with my Programming classes. …

Hey there, I built the following app; A frame that with three sections inside it. Each section is actually a panel. The first panel is a form I use for saving soccer matches on my database; The second holds only one button that reads textfields from the form above and …

Hello Everyone My background: Civil/Structural and Mechanical Engineering. I work as a Structural Engineer designing bridges. I would like to develop a program that analyzes and design structures but do not know much about software development. I have created a library of spreadsheets that are very powerful and when working …

Hi, is there a way to do 128 bit comparison in one instruction with SSE 4.2a? I need to compare if the XMM0 register is 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF If not, what would be the fastest way to compare with two steps of 64bit comparisions? Thanks in advance.

i get no GUI when i run! import java.awt.*; import java.awt.event.*; import javax.swing.*; public class Calculator { private JTextField resultTF; private JButton calculateB, numbersB[] = new JButton[11]; public void driver() { //Create Window JFrame calc = new JFrame("Calculator version 1.0"); calc.setSize(500, 500); calc.setDefaultCloseOperation(calc.EXIT_ON_CLOSE); //Get the content pane (object of type …

Hi All How can I select some random names from a list, so that in next time, those previously selected names become omitted from the list? for example, say we have 100 names in test.txt file, and we want to select 3 names randomly. then by recalling the selection function, …

i've downloaded the last version of boost(1_47_0) but i don't know how to build it, i tried to find a tutorial on google but that didn't help much because it was for a very old version and some thing changed. anyway, my compiler does have minimal support for C++0x, will …

Hello all, I have an issue with a class I am writing which is supposed to be able to multiple 2 matrices together. The issue I am having is not the actual multiplication (That bit works, thanks for the pointers yesterday). The problem, or so I assume, is with my …

The Class has no error, but the test program has a constructor error on line 21. [CODE] /** * DataSet Class * * @version 10/3/11 */ public class DataSet { private int Sum; private double Average; private int Largest; private int Smallest; public DataSet(int Sum,int Largest,int Smallest, double Average) { …

[CODE]/* * hello.c * This is a simple, introductory OpenGL program. */ #include<stdlib.h> #include <GL/glut.h> #include<iostream> #include<fstream> using std::fstream; using namespace std; void draw(void) { /* clear all pixels */ char fileName[] = "house1.txt"; fstream instream; instream.open("c:/house1.txt",ios::in); if(instream.fail()) return; glClear (GL_COLOR_BUFFER_BIT); GLint numstrip,numlines,x, y; instream>>numstrip; for(int j=0;j<numstrip;j++) { instream>>numlines; glBegin(GL_LINE_STRIP); …

I have to make a bank GUI and I have a Jlist that populates with the customer objects (viewable by name) and I can view their individual info... but when I select the customer, I also want to be able to pull their account info and put it in a …

Hi all, I am trying to compile a servlet, and am getting the following error. [code] C:\Program Files\Apache Software Foundation\Tomcat 5.5\webapps\flatironswp1\WEB-INF\classes>javac export\ExportUtil.java export\ExportUtil.java:5: package javax.servlet.http does not exist import javax.servlet.http.*; ^ [/code] and here's my code: [code] package export; import java.io.*; import javax.servlet.http.*; import javax.servlet.*; public class ExportUtil extends HttpServlet …

actually in gcc compiler of linux everything is working fine without header files... Then what is the real use of the header files in c & c++ langs ?? can anyone ans it??

[CODE] #include<stdio.h> #include<conio.h> void hello() { printf("\nHELLO\n"); } int main() { hello(); hello(); hello(); hello(); getch(); return 0; } [/CODE] If I run this code on a compiler,how many processes and how many threads will be running on the compiler and which ones? Does a duplicate function call consist another …

Just fooling around I came across an issue updating a digital-clock like label. This: [CODE]self.now=time.strftime('%a. %b %d %Y %H:%M:%S',time.localtime()) self.clock=ttk.Label(self,text=self.now) self.clock.pack() while True: self.now=time.strftime('%a. %b %d %Y %H:%M:%S',time.localtime()) self.clock['text']=self.now[/CODE] simply freezes the program, I've managed to get it to update on certain events like the user hitting a button but …

I am going to make a project. My professor told us to make any java program. I am planning to create a grading system. That outputs: Name: Student Number: Course: Class Standing: Seatworks Grade: 5% Homeworks Grade: 5% Quizes Grade: 15% Preliminary Exam: 35% Final Exam: 40% Total: 100% and …

Hello, I recently started learning java, and I am trying to make a program and I am running into some trouble. Basically what I want is for the user to input the number of people attending a movie, and then the user could input all of the ages of the …

Ok how do I change the texts color without changing all the couts to printfs and without using system("color hex")

Sorry about the typo in title. Ok my school is addicted to making us mad and have blocked command promp that I brought my copy from home on a floppy disk and it blocked me. So what I need is a few alternatives for these: cls - clears the screen …

Dear seniors, I am a newbie in wxPython and I have to write a code that can immediately start playing a video after I load the file. I have been going through a lot of forums tried to implement 10 - 20 codes, but the wx.media is not playing the …

I am creating methods that will extract info out of a text file. The program is for a real estate office manager who needs to run reports on property listings. The text file will contain property number, property type, price, and agent id as follows. [CODE]110001 commercial 500000.00 101 110223 …

In structure hen i read floating point value from user and i get the error like"floating point not conneted..." i have been sugested to write two lines for that extern void float conetor(); #pragma extref floatconnector even though i got the same error it is not even asking for float …

Hai Fiends, I need to add \r\n(if \n is present or not) at end of every line of a huge file. how can i do this in java, with high performance. please help me in this problem.

Do you have any loading screen coded in c++ graphics?? Pls. I need some.

Our teacher made us make a program that computes midterm grade. I have made my code already. My problem now is that whenever i run my code, halfway through the end appears a debug error saying that i was using a variable(TotalCS) that isn't declared. but it is actually declared. …

Hey there everyone. I wondered if anyone could help me out with writing a simple program that checks through blocks of HTML code replacing specific sections of code within each block of 3 <div>'s. It is basically to make my life easier when I have to edit a website, otherwise …

please help me. my program is working but not displaying the table but i followed the syntax for the two-dimensional array. how come the program does not display the table? here is the code. :D [CODE] #include<stdio.h> #include<conio.h> main() { int x[5][5],a,j; for (a=0;a<=5;a++) for (j=0;j<5;j++) x[a][j]=(a*4)+j+1; for (a=0;a<=5;a++) for …

Hi everyone, I am doing a Java course at uni at the moment and it kinda doesn't make you become a real programmer with the confidence that a programmer should have. I really want to program in Java and any language(not python though because it is not a user-friendly programming …

Hello, I'm trying to do a C# code that call, through a 56k modem, a real phone number. The Call works correctly but now I need to know if the person I call answer to the phone or not (it is for an alarm project). To do my call, I …

Hi, The whole idea of this program is allow teachers to input marks results for 6 students. Once all marks have been entered, It must to display the marks and grade for each student. For some reason it can't display the grade properly. It just display "Fail" on each mark. …

i've got an assignment to write a program that simulates a game of snaps in python but don't know how to get started, your help would be appreciated! Here is the question: Write a program to allow the simulation of a game of Snap. Assume two humans will play, but …

Hi All, I've created a registration form in VB.Net. Now I want to validate it, like if the username is previously used by some one then it wont allow to register. I can do it in ASP.Net, But I m not able to find any solution for VB.Net. If any …

NEED HELP~! Does anyone know how to import exel data into sql server using vb.net? I want to create a openfiledialog and allow user to choose which exel file to be imported into the server. Thank you so much~~ >.< PS. I am just a beginner of vb.net. So would …

I dont know how to add a next button that will continue to a next page. The next page will have: Prelim Exam Grade Midterm Exam Grade Final Exam Grade Compute Button Exit Button Here is the code i have done. HELP ME PLEASE. THANKS. [CODE]import javax.swing.*; import javax.swing.event.*; import …

Within a function a vector could be given back via "return". Example: [CODE] vector<int>myvector() { vector<int>myvector; return myvector; } [/CODE] Better would be to work with a reference, e.g.: [CODE] vector<int>(&myvector)() { vector<int>myvector; } [/CODE] But this reference doesn't work. Does anyone have an idea what the correct code would …

ok all I need is to do is put qoits in cout. Like cout<<"She said"this""; or something like that. It is not dissus able I need quotation marks in it. (makeing JavaScript thing from inside program with user imput.) Just tell me how to do it instead of alternative ways …

I'm trying to mix it up with operator overloading and I can figure out what I'm doing wrong. Here's the code: [CODE]#ifndef TEST_H #define TEST_H using namespace std; template <typename T> class Test { private: T number; public: Test(T); friend Test operator+(Test<T> &a, Test<T> &b); friend ostream& operator<<(ostream& out, const …

I have a number of plain text strings that I need to allow a user of my program to change, what is the usual/best way of doing something like this? I was considering using C# properties for them all (and a "edit properties page") but I'm not sure that's the …

I want to know how to make a program to convert from binary to decimal and from decimal to binary

[CODE]#include<stdio.h> #include<malloc.h> struct node{ int info; struct node *link; }*start; void main(){ start=NULL; int n,i,el; printf("Enter the no. of elements u want 2 enter"); scanf("%d",&n); for(i=0;i<n;i++){ scanf("%d",&el); createlist(el); } void createlist(int data){ struct node *q,*tmp; tmp->info=data; tmp->link=NULL; if(start==NULL) start=tmp; else {q =start; while(q->link!=NULL) q=q->link; q->link=tmp; } } struct node *q; …

Okay, so my problem is that I'm making a program that identifies whether the user input is a letter, a number between 0-9 or a symbol. This is what I have so far: [CODE]#include <iostream> #include <iomanip> #include <windows.h> #include <string> using namespace std; int main() { char variable; cout …

Hello guys, I need help with one task. I've to make a program which generates random numbers and stores them in an array. How many numbers to be extracted depends on the arrays length, which are parameters in the class constructor. The array needs to contain only one instence of …

Hi, I have a bunch of hex constants I'd like to define with new names for characters for an LCD driver I'm writing. Can I just define them in hex in the header like this: #define NINE 0x39 Do I have to force #define statements into char like this? #define …

Hi I'm having a lot of problems with this homework problem due tomorrow. The assignment is to make a program that can read data from a file and give out the wind chill, average temperature, average air speed, and average wind chill. It must also reject data that has a …