Software Development Forum

I have a simple application, a form with two datepicker( Datepicker1 is for startsearchdate, while datepicker2 is endsearchdate) to filter out any record that not in the range. The source of the record is readed from a rtf file.The record is in format as showm below. [dd/MM/yyyy] time result So …

Ordinary Maps use the following test for equality (k1==null ? k2==null : k1.equals(k2)).) IdentityHashMap uses k1==k2. My question is that even Object's equals() method returns k1==k2. Only when the Object's equals method is overridden inside a class, does it perform content based equality comparison. So, IdentityHashMap could have used Object's …

Hi, I'm writing a program that goes through all of the music in a user-specified directory and I am having some trouble with Unicode characters. More specifically, [icode]'ascii' codec can't encode character u'\\xe7'[/icode]. The song names need to both be printed to a HTML page as well as be passed …

I want a list that include matrixes (not implementing matrix as a list) . and I will add matrixes when I want. Is it the best way to take a dymamic memory with matrix size(row*column) and add the pointer that reference matrix to the list. But in this way, if …

Hi, I want to make an array of strings like this: [code=c]string s[4]={"a", "ab", "abc", "abcd"}; [/code] Then I want to write a class with a pointer to a string (and not an array of string pointers). [code=c] class someclass{ public: // constructors and other member functions here private: string …

Question 1 In C++, no name is associated with the pointer data type. True False Question 2 The statement int **table; declares table to be a pointer to a pointer. True False Question 3 Which of the following arithmetic operations is allowed on pointer variables? a. Modulus b. Multiplication c. …

Hi guys I need some help with an idea i have. I work for a company that does monthly audits of items in a grocery chain. I have all my field reps setup to use excel files to complete their audits and then they send them to me. At the …

Hello guys, This class creates aDie object by using aRandomNumberGenerator and the concept of composition. The program works if the member object aRandomNumberGenerator is not declared static. Otherwise I receive the error "undefined reference to aDie::gen." I do not understand why this happens, isn't gen within the class scope? Even …

I can't figure it out. [CODE] #include <iostream> #include "GameMenu.h" #include "PlayerInfo.h" using namespace std; GameMenu::GameMenu() { } void GameMenu::display() { cout << "-----------------------------------------------------------------" << endl; cout << "Welcome to \"Hot or Cold\"" << endl; cout << "-----------------------------------------------------------------" << endl; cout << "OBJECTIVE:\t\tGuess the number in fewest number of guesses." …

I was wondering how one would go about creating a structure that cannot be used by itself, i.e. only through a wrapper class. My question is what would be the syntax for this construct? I'm currently on a personal project to make simple tests from old tests, all the questions …

I need to log in to a website using python. The two fields are username and password. This is what I have tried: [CODE]import urllib import urllib2 import httplib username = "username" password = "password" url = "https://webconnect.bloomfield.org/Zangle/StudentConnect/logincheck.aspx" password_mgr = urllib2.HTTPPasswordMgrWithDefaultRealm() password_mgr.add_password(None, "https://webconnect.bloomfield.org/Zangle/StudentConnect/", username, password) handler = urllib2.HTTPBasicAuthHandler(password_mgr) opener = …

Hi How can I stop a class method execution ? I have been reading and the most similar solution I found is use Threads....is there another solution ? Im working with jasperreports, In order to generate report I just call single method to start the report print and another method …

The problem is that it gets stuck on public static void queryChange(String string) { System.out.println("Sending Query: "+string); try{ System.err.println("queryChange 1"); Connect(); System.err.println("queryChange 2"); [COLOR="red"]conn.createStatement().executeUpdate(string);[/COLOR] System.err.println("queryChange 3"); }catch(Exception e){ System.out.println("SQLException: " + e.getMessage()); } System.out.println("Sent Query: "+string); } java doesnt error it just gets stuck. Sent Query: UPDATE `servers` SET `playersCurrent` …

Hello, I want to count phrases in a text file by using Python. For instance, if a text is like "I love you very much", I want to make a dictionary like: "I love": 1, "love you": 1, "you very": 1, and "very much": 1. I also want to do …

hello i have a simple client server program in which different paramters are asked by client. i want to use cryptographic techniques like DES, AES, RSA but i do not know how and where to use.... i m doing socket programing first time even programing in linux. so i do …

hi, im currently making a food ordering system in python. I recently decided to put a background in the window and now all of my buttons have disappeared?? does anyone know why this might be.

Can you people please help me in this program using only nested loops? I cannot use bufferedreader or charAt function Hard coding cannot be used. [B]The dots all stand for spaces[/B] The pattern is:- abcde .bcde ..cde ...de ....e ....ed ....edc ....edcb ....edcba The spaces are mandatory. [B]The dots are …

I was wondering if anyone knows how to create a transparent background image? just a small example or something.

hello, i have some simple questions but i don't know why my code is not correct see these questons: 1-Write an algorithm to accept three numbers and display the largest one? this is my code [CODE]int num1,num2,num3; cout <<"Please enter three numbers:"; cin >> num1 >> num2 >> num3; if(num1 …

I am currently stuck in one part of my application. I have two combo boxes that i am having the users select from. The first combo box is simply bound to a datatable. that is working properly. The second one i need to populate off another datatable after sorting out …

For the Object class' equals method, the API says :[QUOTE]The equals method for class Object implements the most discriminating possible equivalence relation on objects; that is, for any non-null reference values x and y, this method returns true if and only if x and y refer to the same object …

Hey guys, Is there any way to call the click event of a linklabel? E.g., I have a form that should call linkLabel_refresh_LinkClicked when it closes. Is that possible? Thanks

I have found a tutorial that will teach me how to set up my first Database, but the first thing it tells me to do is right-click on the Data Connections Icon within Database Explorer and choose "Create New SQL Server Database" ... unfortunately, this option is greyed out, so …

hey everyone !!! well i got a very annoying problem i am teaching my self about java and especially about developing programs that could be used by Nintendo wii remote. i have recently found a perfect program that has been created in java and created for nintendo wii remote and …

The following code iteratively calculates continued fractions. I'm having trouble separating the numerator and denominator from the returned value. [code=python]def cf3(terms, iterations): answer = 0 for n in range(iterations, 0, -1): answer = Fraction(1, terms[n] + answer) answer += Fraction(terms[0], 1) return answer [/code] The following is sample output showing …

[CODE]output = open('d:\code\\output.txt','w') for y in range (0,len(evidence_array)): output.write(evidence_array[y] + ', ' + found[y] + '\n') #I am not sure if this output writing is correct! output.close()[/CODE] PLEAE CAN SOMEONE HELP! ---I AM NOT SURE IF THIS OUTPUT WRITING IS CORRECT THANKS

Hello Dear DaniWeb community Here I am again, with a new problem :-) For those of you that are reading every post you probably have already seen that I'm trying to implement an auto-extracting process which extract data from ActiveDirectory, process it in order to make a filtered csv file …

Please, someone explain me why when I compile this code in Dev-C++ (Windows OS) the following error message apears: 'clrscr' undeclared (first use this function) int main() { int c; char d; clrscr(); printf(" Example program for PSC232 \n"); setup(); printf("*IDN?\n\r"); send("*IDN?\n"); printf("RECEIVE...\n\r"); loop: receive(); goto loop; } ps: ignore …

Ok so I dont think I have installed ANY compiler for C++ on my Windows Vista system. So I would need info about that as well. Anyhow. Just like java can be run using javac and then java w/e w/e... how do I run my .cpp notepad files via the …

k, what i'm trying to do is create a windows service to run in the background to monitor [URL="http://www.vmware.com/products/player/"]vmplayer.exe[/URL] to see if it is running or not. then if it is running, then turn on the various hardware, software, and services it needs/uses to run, and if it is not …

Hi all, How to create refresh Button in the form? I have combo box with the data linked to Access database. I create another form for data input for those that appear on the combo box. When I close the input form, I realise that the data is not yet …

Guys, Why do we have these unresolved externals? This is the second time I am meeting them, and I'm sure it is a common problem. I've defined all the constructors including a void constructor just for the sake of (I don't actually need it). Pray tell where the error is: …

#define prn(a) printf("%d",a) #define print(a,b,c) prn(a), prn(b), prn(c) #define max(a,b) (a<b)? b:a main() { int x=1, y=2; print(max(x++,y),x,y); print(max(x++,y),x,y); } output:222342 pls explain how we get output 342 at end

Hi, I am working on a small program (in Windows) to control the Speed of a CD Drive. So far I have used some of the IOCTL_CDROM_... and IOCTL_STORAGE... Control codes to control the drive by opening/closing it etc. I have now developed a small piece to also control the …

i have created two winforms ,first from take a value and pass it into the second form and display on a label, but when i run the programme it throws exception form 1 [CODE] private void button1_Click(object sender, EventArgs e) { Form2 fm2 = new Form2(this.txtName.Text); fm2.Show(); } [/CODE] form …

Hi Guys, I want to store the values of regex.match in an array but i am getting error. my code is as follows [code] string[] subj = null; for (int f = 1; f <= dir.Length; f++) { Match o = Regex.Match(txt1, "section_title='(?<TITLE>.*)'"); subj[f] = o.Groups[1].Value; } } } [/code] …

I am very new to vb 2008 and have create a simple window forms application which link to microsoft access 2007 database. I build the application exe file already. The exe file is run well on my computer, but when i transfer it by copy and paste the whole folder …

Hi all, Im fairly new to java. Im wanting to connect to mysql but the following is thrown Exception: com.mysql.jdbc.Driver have i missed something? here is the code [code] import java.sql.Connection; import java.sql.DriverManager; import java.sql.SQLException; public class MySql { public static void main(String args[]) throws Exception { Connection con = …

Hello everyone! I wrote a basic c++ program using classes and pointers. Although it compiles without any errors, it will not run, saying "This program has stopped working". I am assuming that this issue may have been created by a memory leak, but I made sure to delete all dynamically …

Hey All. I'm trying to figure out how to search for a string within my file and if the string exists, I want to get whatever follows it. Here's an example: HighScores.txt ---------------------------- Devin: 202 Corey: 185 Nick: 315 Patrick: 112 ---------------------------- If my program opens the file, I'd like …

I'm writing a script that will search file names looking from certain file extensions. The thing is, is that I am looking for multiple extensions, and the list may change. I could write an if statement using "and", but the line just gets a bit long and can become difficult …

Hi all, I am trying to link to an external library (the boost regex library) under gcc. I am ashamed to admit that what I know about linking external libraries comes soley from modified snipets from online forums. My problem is as follows; I use to keep all my source …

Hello, I am trying to calculate the value of pi (just for fun, I know it's already done for millions of decimal places), the program I made works fine, but the problem is that, it is constrained by the accuracy of [I]double[/I] values. Is there anyway to create 'extendable' floating …

Hey guys and girls, I am extremely new to coding, and I would appreciate some help. I am trying to write a code in which someone inputs a number, which is part of a file name, then I do stuff with the filename. Here is the part that I am …

I've been trying to use substring to get the last three digits as part of the extension but wasn't successful. Can anyone tell me how I can extract the extension from the file name? Rgs

I know it sounds stupid but I want to try this with the kind of for (not the norma for i=0 i<9; i++) but the other one with arraylist. is this possible? If yes please help me match data types Thanks [CODE=JAVA] import java.util.ArrayList; import java.util.List; /** * Created by …

Hello everybody ! wow my first time on danyweb ! ;p Well, here the deal. Im doing a script that basically copy and past into the local drive a specified directory with all this files. Im doing the copy with a copytree which is working well. But, (and I know …

Hey guys i seem to be having an issue with the following code: [CODE]// show solution to variable scope problem using "the heap" // a block of memory controlled by the programmer #include<iostream> using namespace std; double* Function() { double* dLocalVar = new double; return dLocalVar; // give address of …

I followed a tutuorial to send gmails through a C# app. Im making a console app and this code fails I have no idea whats wrong... [CODE]class MainClass { public static void Main (string[] args) { sendMail mailSend = new sendMail(); mailSend.mail("stmp.gmail.com",465,"sendersemail@gmail.com","senders password","fromadress@gmail.com","toadress@gmail.com","Subject","Body",true); } }[/CODE] [CODE] public class sendMail { …

I'm still interested if someone read this book since it's based upon standard C++?! Can one learn C++ over Visual... I mean what's difference anyway, except M$ is involved in Visual ?!