Software Development Forum

Is there any way to overload the assigment operator or it is not possible in java? Thank you very much

I have a DataGridView on a form that updates the datagridview automatically and will allow the user to manually edit the information. I need to save the information in the DataGridView somehow. I don't know what the best option would be. I could of course use a file to store …

Is it possible to do that? If so,can anyone give a theory or something? Thanks :) By the way I am using turbo compiler 3.0

I would really want some advanced C++ programmer to answer me this question, so please help me I really need this answer. How can I really start programming with C++? Of course, I still have a lot to lean. I just learned classes and SOME of inheritance features, I write …

Not really understanding the concept, why did they use "Person *pPerson = new Person("Susan Wu", 32);" and where did ".length();" come from? Also when "Rectangle *pRect" is put into a parameter, pRect is pointing at the address of the object rect, right? [CODE] #include <iostream> #include <string> using namespace std; …

Hey guys, I got this code to upload an FTP file which works great, but what do I do when I wnat to upload the contents of an entire folder? I mean, I could make a for-each but that would mean disconnecting and reconnecting to the FTP server alot of …

I am trying to add two numerical char arrays such as: [CODE]"124" and "589"[/CODE] I wrote functions to reverse the string and add the strings, and it works for strings like "123" and "456", but when the last digits are greater than 10, I don't know how to carry it, …

What happens when I set the value of an integer to NULL? I print it out / debug it, i get the value zero. Even I can use the NULL assigned integer to initiate another integer. Well, then what is the point of being NULL? Why set it to zero? …

i created a class that i want to serialize each time a move is made on the chessboard. [CODE] class ClassMoveToSerialize { int[] StartPosition; int[] EndPosition; Dictionary<int[], int[]> serialized; public void DataToSerialize(int rowStartSerialize, int columnStartSerialize, int rowEndSerialize, int columnEndSerialize) { MessageBox.Show("" + (number = int rowEndSerialize+columnEndSerialize)); //it isnt finished, i …

Hello, I have a form in my VB 6 program which has 6 labels; which are.. Unit 7 Mark: Unit 8 Mark: Unit 9 Mark: Unit 10 Mark: Unit 13 Mark: Unit 14 Mark: To the right of them I have 6 text boxes where the user enters a mark …

Good Afternoon, I'm having trouble with a school assignment. The assignment entails: Write the implementation of the function subsequence for the orderedArrayListType class. Also write a program to test your function. Prototype: bool orderedArrayListType::subSequence (orderedArrayListType &S,orderedArrayListType &L); Definition: subsequence returns true if S is a subsequence of L, false otherwise. …

I'm new to programing and any help would not only be appreciated but would probably help me pass this class. Exercise 1: Implement a Resistor Class Objective: Create a C++ console application that utilizes the core concepts of designing and creating classes, objects, properties and methods. Overview: Create and test …

I'm getting errors, and I'm not sure why. Any help would be appreciated. I'm working on this program and when I put the ActionListener for the comboBox it blows up. I chose a topic from the comboBox that will pick a file to be read. When I comment out lines …

I am having a hard time deciding whether to use pointers or not in my nested data structures. Memory and CPU efficiencies are important as I am dealing with data files of sizes on the order of gigabytes. I have decided to use several classes that are nested in a …

First of all, what is a "data source", the kind that can be attached to a "DataGridView", what are they used for, and how can I use one?

My question is based on class relationships. I've written code for 2 classes, one of the "public int..." bits in 1 class has a variable which holds the cost of something. In the other class a variable holds the weight of something. I want to multiply the weight with the …

I need a little help please,here is my question: How can I get the current index in a jComboBox? I searched it on google and i cant seem to find any answer. I need to get the index of the item that I select from a Combobox. Please help

Guys how do I save settings of a form like its background color, fonstyle, sontsize etc. I cannot save them as string or text into my access database.

Hey all, I am trying to make a form that is blank and will add in 2 comboboxes, a textbox, 2 buttons and a checkbox next to each other in a row. I want the controls to be part of an array, so that all controls on a row are …

i have just installed VB2008 EXPRESS EDITION. i have added com component msflexgrid ,Getting error with this component An error occurred creating the form. See Exception.InnerException for details. The error is: Class not registered (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG)) how to resolve this.

Hello, I recently took up a challenge to make a full screen pong game in java. So far it is full screen, it does the basics (bouncing off floor/roof/paddles) with a minor point system. I also added support for every 20 seconds it speeds up the ball by 1pixel per …

Hey Guys, I am developing an APP using WxWidgets and some other cross platform frameworks. Then there is a new need into the project to use Bluetooth as a transmitter of Data between 2 devices. I have been using the Mingw compiler all along for developing my app and suddenly …

hello all i want to use shortcut keys ro call different functions in my window application... i have called functions on form_keypress and form_keydown... at the same time i m using a textbox and i want to limit user to enter only numeric data in the textbox but the problem …

in which language are definitions of built in functions like printf written...assembly or C?

i m doing my final year project on "PC Maintenance Utilities" . Plz suggest me one good name for my project. it contains following modules: Junk Cleaner Privacy cleaner(browsers) Uninstaller Startup Auto shutdown/reminder System restore service manager process manager security tools Duplicate file finder disk analyzer empty folder analyzer and …

how can i add color to the TabControl..? we can add color to the TabPage but how to Tab control.

Here is the problem Im currently having: I save a Text that is made in a Richtextbox which save it contents in .rtf when I open it loads the .rtf into the richtextbox (rtf is the make up for the text (like font and color)) but the textbox shows no …

Hi, At the moment i'm trying to locate xml files to use their content. I would like to be able find all files that have a particular pattern in their name (for example student_James.xml; student_Chris.xml so "student" would be the pattern). I want to be able to do this using …

I have an installer application I am building in javafx but I can't figure out how to get the operating system it is running on so I can place files in the right locations for each system and so I can customize the interface for each. If anyone has any …

I'm trying to count the length of each word in a string of text and then count the frequency of times that number of characters shows up throughout the entire text. I can't seem to figure out where to go from what I have here. Any help is greatly appreciated. …

i have create a checkbox in listview...so i wanna know how to check it and export only check item to crystal report so i can print item that i have check... please anyone help me..

I have already included string.h, I've even tried defining GNU but I still get the same warning/error when I compile it. below is not really code, its the warning/error I get [CODE]bravo:~/60-141/Assignment/Assignment3>cc assign3.c "assign3.c", line 94: warning: implicit function declaration: strndup Undefined first referenced symbol in file strndup assign3.o ld: …

Hey all y'all helpful people (:D), My Dad talked to me about making a program that would help him. Basically you enter a screen resolution (or video resolution), then it shows you a list of other resolutions with the same ratio. Let's say you have a picture that you want …

I'm having trouble with validating my textbox. My textbox should only accept decimal number, and should not accept negative number. i tried this code for validating the input type, but i fail. [CODE]If Not Char.IsDigit(numWeight.Text) Then MsgBox("Incorrect input.") End If[/CODE] And i don't know if this is the right code …

Hi, I am having problems with my IF statements. Basically, what I have done is set random numbers to 2 labels. (Random numbers are 1 or 0) What I am trying to make the IF statement do, is see that the label is holding one of those random numbers, and …

How do you detect the home drive(where windows is installed)

Hey I have been looking at google page for some time now and can't seem to find a straight answer. I have a application that is released. Now I want to update that application. How can make a updater? It is released a Installable app, but I don't want to …

Hello to Dear Friends, iam creating data reports ,but the problem is i cant find the way to make report in LANDSCAPE...i heard sp5 or sp6 vb can do that ..but i couldn't found any option like that. kindly guide me how to create reports in landscape format... ithink there …

Hi! :) As said in the title i try to get (as a string) the parent of a selected item, but i can't manage to do it. Of course i can easily retrieve the string of the selected item with GetItemText... But how do we retrieve its parent? Example: if …

Anyone have knowledge on how to make a label during run time which it depends on the user on how many label should be made i have tried some codes but it won't work. [CODE]Option Explicit Dim m_memo, m_size, m_equation, m_jobs As String Dim i As Integer Dim lblfield As …

Hi, I'm currently trying to learn programming in WinApi C++. Let's say I have a ListBox whose ID is "IDCL_LISTBOX" and I clicked a selection on it. A notification goes to my Message Procedure and I filter it through WM_Command. I look at what the LOWORD and the HIWORD of …

I found this forum very useful to me as a beginner in VB.net and found similar thread regarding my concern unfortunately it doesn't for me may be could someone show me the solution. [URL="http://www.daniweb.com/software-development/visual-basic-4-5-6/threads/340634/1446506#post1446506"]http://www.daniweb.com/software-development/visual-basic-4-5-6/threads/340634/1446506#post1446506[/URL] i will provide screen shot on error I'm encountering. [IMG]http://i54.tinypic.com/15o9mvc.jpg[/IMG] Help much appreciated and thank you …

Hello, Can anyone help with this error? [url]http://img27.imageshack.us/f/errorpq.jpg/[/url] I try and click text in the list box and it crashes. Thanks, Matt :)

I got this code sample from the internet, [url]http://richardbowles.tripod.com/java/menu.htm[/url] was able to change the deprecated code to BufferedReader to read in the file, but don't know what's wrong with the errors I'm getting. This is sample code I'm trying to get to work so I can step through with a …

Hi, Below is the code I am compiling to a .dll & .lib but when I try to import the "Rand" module I get [B]ImportError: No module named Rand[/B], I renamed the .dll to .pyd then this error is removed but when I call the sub module Rand.myRand(10,30) it crashes …

Hello, I am having issues with incrementing the counter by 1. In my quiz, the score must only increment by 1 for each question ONLY if the question is correct. I have made this work, however when the answer is correct, the user can continually click on the Submit btn …

Hi all I am a total newbie and am self teaching myself. I worte a program that lets the user guess a random number and then asks if if they want to play again.\ Here is the code: [CODE]#include <iostream> #include <cstring> #include <stdlib.h> #include <ctime> #include <conio.h> using namespace …

[COLOR="Red"]Disclaimer: [I]First, I'm aware that this is C++ code and this is a C# forum, I'm not all that familiar with C++ and was hoping someone here could explain the example below in C#.[/I][/COLOR] I was browsing the very complex source code of the open source project MySQL and saw …

[CODE]testingdays = testingData.getMeasurements() for day in testingdays: dayValues = [] dayValues[0].append(day.tempMean) dayValues[1].append(day.tempMax) dayValues[2].append(day.tempMin) dayValues[3].append(day.dewPoint) dayValues[4].append(day.humidMean) dayValues[5].append(day.humidMax) dayValues[6].append(day.humidMin) dayValues[7].append(day.pressure) dayValues[8].append(day.meanWindSpeed) dayValues[9].append(day.maxWindSpeed) dayValues[10].append(day.maxGustSpeed) dayValues[11].append(day.visibility) [/CODE] this is my code and when i try to run it i get the error message: "Traceback (most recent call last): File "main.py", line 166, in <module> …

hi there, i have created reports through Data reporting, problem is that the data shown in reports it continues, like 2 entries in 1 page ,half entry on next page,, in simple it is unorganized. i want data report to show data separately ..kindly tell me what is the process..to …