Software Development Forum

[CODE=c++] class A { int num; public: A() {} A(int _num) : num(_num) {} A operator + (const A & ob) { return (num+ ob.num); } }; int main() { A ob1(1); A ob2(2); A ob3(3); A ob4=ob1+ob2+ob3; } My doubt is in ob1+ob2+ob3 . First ob1+ob2 is evaluated and …

I am making a jump and run game- i want my sprites to collect items that are worth points. I want these items to be randomly generated on my tile map. Does anyone know how i can do this? I am using Visual C++ with SDL

Hi all , I'm new here and new in Python for symbian ; I hope I'm asking in the right forum and the right section. What python provides to switch off mobile functions that consumes battery , How turn off BlueTooth , Wifi , GPRS , Vibration and Ringing ?? …

Hi everyone, I'm trying to connect to an IRC server and join a channel. When a user joins they will be greeted by my program. I'm not able to debug it because I'm getting an error saying 'Object reference not set to an instance of an object.' Here's my code: …

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 …

this is my first time on this board, so hi. :p I'm currently learning basic java in college and I need some help. I have a constructor for my Node class and I've linked 3 string nodes together and I need to print them in order. So far I got …

I wish to create a user defined control (which contains a text box and a find button) and place it on a form which has a datagridview. The idea being the user clicks on the column header and inputs search text in the textbox and clicks the find button which …

hi there, how can i delete or clear the values of the datagridview row, when the datagridview row index is known. how can i do this in C#???? thanxxxxxxxx

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 …

Do you know that there is clean way of doing what C-language ternary operator ? does in Python's recent versions. It is if with special twist. The syntax is: [CODE]'The value if true' if <condition> else 'Value when false'[/CODE] Values can be any type. You can put this structure to …

hi can anyone tell me how to write the output of this code to a file?? [CODE] #include<stdio.h> #define MAX 10 char array[MAX]; void main() { void addvalues(); addvalues(); } //funtiocn that will allowe the user to add the values void addvalues() { printf("------------------------> Insearting List Elements <---------------------------\n"); int i; …

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 there, i have a code for the above mentioned property below,when i click a value from the datagridview combo box column the for loop runs 2 times y is that??? what do i have to do for the loop to run once. thanxxxxxxx [CODE] private void dgvSubContract_CurrentCellDirtyStateChanged(object sender, EventArgs …

I have a problem with the drawing and or the filling speed of my FlowLayoutPanel. [URL="http://camart.se/screenshot/jims001.JPG"]See screenshot[/URL]. Can I speedup the process my cashing my images somehow? Or is there a better alternative to the FlowLayoutPanel? [CODE] private void FillPanel() { flpServices.Controls.Clear(); prevStatus = 0; prevRows = 0; foreach (Jims.Services …

Hello, I have a derived class, that I'm trying to delete. This causes a segmentation error, though. I'm fully aware of the virtual destructor thang, but I'm using it all the way around, and still this issue occurs. I'll post my headers only, please tell if more is required. DataStream.h …

Hi All, I have written reversible link list and pasting the code as below in c++. It works fine, please let me know if there are anything more that is required to make this more robust. This is on a single link list. [CODE] [COLOR="Green"] #include "stdafx.h" #include <iostream> using …

Hello I am having some problem, can any body give me a helping hand each time I compile I get this error massage, I dont know where I made the mistake help please I new to programming[code]This is my Main File include libraries #include <iostream> //Call C++ normal imput and …

Hi , I need help with select staement.I am trying to to look for a word in column word .If i find that word then then show a message box that this word exist in databse.Can anyone help me with this.my code is something like this [code]private void dataGridView2_CellContentClick(object sender, …

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 …

hi all i have an assignment in which i have to use object-oriented programming to read from an input file(say: input.txt), use prim's algorithm and calculate the weight of a minimun spanning tree and then save the output to a file(output.txt). the problem with my code is that the program …

I'm getting to a point in my project where functionality can be based on the needs of individual users. As part of my application I would like to have the ability to add and remove functionality based on the user. I figure plug-ins might be the way to go for …

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 …

hi. I am working on a project which keeps its data access, business logic and UI in separate projects of a solution. Is there a way to access a strongly typed dataset in one project of a solution from another project of the same solution? I need these to fill …

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 …

Hi All, I'm trying to figure out how to load images from a resource file into a picture box using a visual studio windows forms application in c++. I figured out two different ways to do this in c# by going through the forums, but I cannot figure it out …

Hello everyone, i need to enter a value into a savings account paying 7% interest and €1,000 is withdrawn from the account at the end of each year. How many years are required for the savings account to be depleted? here's wat i did, but the loop not working: [code=c]#include …

I have just started learning python, I am a Java programmer. I think python is more simple than java. What I wanted to ask is, where is python used? And if python does not follow the complete OOP concepts, then can it be used to design large / major applications? …

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 everyone, I have a tiny problem with a simple implementation: - i have a main window with a table in my central widget - i want to add stuff in the table gradually, and I allow only the 1st cell (index 0) of each row to be selectable. - …

I want to improve my programming skill and decided to build python wrappers over other library's. I've done this with the face recognition and think it would be real world code for me to work on. I want to code as a career and I want to code stuff programmers …

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 …

I am trying to write a function which converts a number to a string. But when I return from the function, the reviving string - according to debug mode - still is empty, so the program outputs nothing. What am I doing wrong? [CODE=c] #include <iostream> #include <string> using namespace …

Say I have an array like this: double *a; and I use new/delete[] to do memory allocation on it. How would I be able to delete certain elements from it? Like this: [code=c++] void RemoveElement(double *a, const double &element) { } [/code]

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 …

Hello, I'm writing a simple program implementing a list. You can add, remove, search, print and find the minimum element. My problem is that the program crashes if I don't add the 'system("PAUSE");' line before the last 'printf("Minimo = %d.\n", minimo(l));' call in the main method. Here is the code: …

[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?

Hi there everybody, I am currently studying for my university exams and need 2 make a function for the below scenario. The function must display the information inside the 2D array as you can see in my code I have tried but to no prevail. Any help will be GREATLY …

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 …

[code=html]<table-group> <html> <head><title></title></head> <body> <table width="885"> <tr> <td width="20%"><p></p></td> <td width="20%"><p></p></td> <td width="60%"><p></p></td> </tr> <tr> <th align="left" valign="bottom"><p><b>Revision Date</b></p></th> <th align="left" valign="bottom"><p><b>Sections Revised</b></p></th> <th align="left" valign="bottom"><p><b>Description</b></p></th> </tr> <tr> <td align="left" valign="top"><p>7/1/02</p></td> <td align="left" valign="top"><p>All</p></td> <td align="left" valign="top"><p>Complete manual revision to reflect changes related to the MMIS and HIPAA compliance.</p></td> </tr> …

Hi Guys, I want to know how can you add image to a part of word .I ll explain it further...suppose i display some text on a text box , now what i want to do is , suppose i have a word 'horse' in my text and i want …

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 …

Alright i need help computing random dates and i have to use lists. this is what the program should do program must print out the following output: 1. The complete list of birthdays that you generated. 2. The birthday that was generated twice (printed separately from the list). 3. The …

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 there, i have a mask textbox in C# which saves $9999999999.99 as the mask, i have a database field should take the value and save it. the database feield is in money .but when i am writing the C# method to insert it into the data i convert the …