Software Development Forum

Hello, I'm building a program that gets the value of a [b]TextField[/b], concatenate with some other [b]Strings[/b] and then display them on a [b]TextBox[/b] when the [b]ScreenCommand[/b] is clicked, the problem is that it's calling a [b]NullPointerException[/b]. My code is like this(of course it has a lot more stuff): [code=java]/* …

[CODE]#include <iostream> #include <windows.h> #include <ctime> #include <cmath> #include <iomanip> #include <string.h> double numerator, denominator; static short multiplycounter; static short dividecounter; const double ten = 10; double* ppnumerator = &numerator; double* ppdenominator = &denominator; using namespace std; /**********************************************************************************/ double lcm(double numerator, double denominator) { if(*ppnumerator > *ppdenominator) { for(long counter …

Hey, so I'll post what I have, the code is pretty self explanatory. I have a hunch that there are more efficient ways to code than using these long and repetitive if statements, so if you guys could help me in that direction that would be great. I also am …

For some odd reason, I can't get anything to be displayed when the program is running. I believe its not passing anything at all which would explain the blank console. If anyone could help me out that would be great. Without using functions the program successfully shows: 1) Student's name …

Hi guys, I'm trying to get to grips with ADO, so I've installed SQL server 2008 and made a database and placed a table called Computers in it. Now ive got the following class... [code] using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Data.OleDb; using System.Data; using System.Data.SqlClient; namespace …

I'm reading the filenames/directories of all the files within a folder into an array of Files. The filesnames are all of the type: Name1, Name2, Name3, Name4, Name5, Name6, Name7, Name8, Name9, Name10, Name11, Name12, Name13 The above shows the correct order in which the files [B]should[/B] be ordered. However, …

Okay, we had an assignment in computer class that I have been working on for awhile but what I've got so far isn't working. It seems that it may be a compiler issue, but since I can't get to a linux compiler (what the program will be evaluated on), and …

Here is the requirements: create a class include first name, last name, and monthly salary variables. Create a set and get method for each instance variable. What is the set method for(I read the book several times)? I don't quite get how to use it. How to create a set …

My problem is that I need to write a program that asks the user to input a number from 1-99 and outputs the number spelled in english. I believe that I have the general outline down in that I will break it up into statements using If and Switch statements. …

Im getting this error and I am so new at this that I have no idea how to correct it. If someone has any suggestions. Programming for 10 weeks! [CODE]#include <iostream> #include <string> #include <iomanip> using namespace std; int InputData(string [], int []); int main() { string players[99]; int score[99]; …

Hi, I am writing a Directory optimizer with the help of mouse. I didn't Know how i can get the file name and the path which is being pointed by the mouse or clicked by the mouse.For more detail i am giving here an example. Let open the drive E:\ …

Hey people! I'm creating a small project which consists of 36 textboxes and one button. When I click a textbox, it should open a open file dialog and, when OK, set the text of the textbox I've clicked to the file name. I've did this: [CODE]Public Class Form1 Private Sub …

So I've been working on a program that takes a string and then puts it in an i * 6 char array but I can't seem to get it to work, any help with the problem would be much appreciated. Here is the unsatisfactory code I have so far: [CODE] …

At debugging the code, the program gives 2 errors Error 1 error LNK2001: unresolved external symbol _mainCRTStartup Error 2 error LNK1120: 1 unresolved externals

I am trying to learn C++ ifstream i came across this code on the net and have some question. void read() { ifstream inFile ("in.txt"); string l, i; int item = 0; while (getline (inFile, l)) { // is this one checking end of file like java? istringstream linestream(l); // …

hi 2 all How to get todaz date in java and store in a string thanx in advance

I am trying to extract the important text, and only the important text from an RSS feed. I have determimed that all of the items in the feed have the important text underneath a tag that starts <div id="important text"> ... In some of the files the important text is …

I use Visual Studio 2005 on windows XP. I'm trying to use "Google Test" framework. But i couldn't manage to make just one test because of linker errors. I built Google Test, thank created new project. Then made the steps written in [URL="http://stackoverflow.com/questions/531941/how-to-setup-google-c-testing-framework-gtest-on-visual-studio-2005"]this link[/URL] to the project properties file. Than …

im new to cgi scripting...im using python...and ubuntu... i changed apache2's default file to set the cgi directory to /var/www/cgi-bin...and there i i uploaded my simple cgi file...the cgi file runs perfectly fine when run through terminal...which means there is no error...but when i try to access it through a …

Could someone explain to me why this code will not print the 10th prime number? It says there is a syntax error on the fourth line (the x = range(3, math.sqrt(test_num)). It also says there is a syntax error on the sixth line (while prime_count < 10:). [code]import math test_num …

Hi Please help this is driving me insane, I've simplified my XML and stylesheet below for explaining what I'm trying to achieve. My stylesheet is successfully generating a HTML file for each of my categories using title i.e. This Category.html That Category.html It also generates a simple index.html at the …

Hi, Let's say i have 2 boxes, 'UsernameComboBox' and 'PasswordTextBox' and a button, 'Update'. I would like the database (Access) to update a given record according to the values selected/input into the above 2 boxes. How do i go about doing this? Any help will be greatly appreciated :)

what to do if i want to execute some statements in a loop till the user enters any key? i did this earlier but have forgotten the logic... example:- while(1) { printf("abc"); /*i want this code infinitely, but as the user presses any particular key it should stop the execution*/ …

Well i am working on a drink dispenser machine and got stuck on array part, this program includes selecting a drink, show price, show changes and a option whether to purchase drink again They are being placed on various method like public void A() select drink... public void B() calculate …

How do I add all time values in a database table to get its total, get the total tardiness then sum up to know how many days an employee is absent or present in a monthly basis?

hye all :) can u help me with this code: [CODE]int list[4][4] ={7,23,12,6, 2,1,4,10, 65,15,33,8, 18,26,42,12}; int i,j; for (i=0;i<4;i++) { for(j=0;j<4;j++) { cout<<list[i][j]; } }[/CODE] there's output but i want it to display 4X4

Hello, I'm having this problem in my code that I just can't figure out the reason to, I'm trying to set an integer value to an integer variable that's a member of a class that is part of an array member of another class. It should be an int = …

Hi there, I have a set of coordinates (data points) that I want to use Python3 to fit an exponential decay curve to. I've used this resource [URL="http://mathworld.wolfram.com/LeastSquaresFittingExponential.html"]here[/URL] as a base for building my program. The problem is, no matter what the x-value I put in is, the y-value ALWAYS …

hello All, i am working on a small project to show people address through there names , for example the user will enter the name and it will show him the address of the entered name.. but the big issue here is that i want to googlize it which means …

Okay so this is getting on my nerves now. Say I have a string like this "The average value for box 1 is:" and I have a float variable containing digits. How do i make the final result like this: "The average value for box 1 is: 12.01" ?? In …

Hello! I'm a programming student and a newbie in forums. :) How can I search for a data in listview from fist form using my second form? For example, I entered 7 entries to my listview, and when I press "Search in listview" button, the second form will open. (My …

Hey Guys n Gals Im a newbie here and I am having trouble with putting input into a two dimensional array. What I have to do is put the users numbers (integers not doubles) into a matrix add them, subtract them and multiply. I have most of my code written …

Hi All Does Anyone know how to make a variable public to all forms within the application. Eg [ICODE] Public MyPath = "C:\" [/ICODE] can do for one form but not all

Hello it is my first time here and I just started C++ so hopefully my question isn't too dumb or anything: I was writing this thing that can do geometric series and arithmetic series. I can write the geometric series code alright and the arithmetic series code alright but once …

Just wondering if someone can tell me what I'm doing wrong here, I just can't seem to work this out, I keep getting errors. [CODE]function GetColorFromBmp(XX, YY: Integer; Bmp: TBitmap): TColor; var Line: PRGB32Array; begin Line := Bmp.ScanLine[YY]; Result := RGBtoColor(Line^[XX].R, Line^[XX].G, Line^[XX].B); end; procedure SetColorOnBmp(XX, YY: Integer; Color: TColor; …

[CODE]// istream get #include <iostream> #include <fstream> #include<string> #include<cstring> //#include<sstream> using namespace std; int main () { char c, str[256]; ifstream is; cout << "Enter the name of an existing text file: "; cin.get (str,256); is.open (str); // open file ofstream was; was.open("output.mvw"); string st ("There are two needles in …

My problem: I am now able to get the program to compile, however, when i call the functions to count the number of consonants or vowels, the numbers are not what I expect. Instructions: Write a function that accepts a pointer to a C-String as its argument. The function should …

Hi im a c++ beginner and i'm doing a tic tac toe program hollywood squares style only with math questions. what im trying to do here is im trying to insert a timer such that the player only has 20 seconds to answer each question or he/she loses his/her turn.. …

I want to compute the difference of time values. The values are loaded from my database (which are captured via biometrics) into labels. Here's a screen shot: [ATTACH]19115[/ATTACH] And I would like also to separate the hour value and minutes then the computation. Any idea where I will start.? :) …

I have a text file with the following numbers: 1 2 3 4 5 6 How do I read each individual number into an array? It needs to move along each row so read in 1, 2 and then 3 into a array of 6 integers. Then move to the …

Well, i'm working on a text Editor. I'm still a little nooby with C++. I'm trying to create a Goto Line Command. Would someone give me an example of how to do it? Thanks :P

I'm trying to create a desktop based mailing software where one can attach files and then mail it to any mail address. I'm having 2 problems. 1. I cannot attach files which are greater than 2mb in size although I use my G-mail account to send a mail and g-mail …

I am new to java, and have this assignment do when I have to count consonants and vowels among other thigs , and I already wrote a program that works. However, I feel that there is still room for improvement specifically in the vowel and consonant counts. Could you help …

Hello all, I have a problem with a function I wrote. I wrote a main() that takes from current library a *.c file (that the user gives by the argv[1]) and make a copy of itself but without the comments and saves it as *.c1, so after this operation we …

I'm having some fundamental issues with some basic abstraction. Here is the super class: [CODE] public abstract class Tile extends JLabel implements MouseListener { public Tile() { setIcon(new ImageIcon(getClass().getResource("images/blank.gif"))); } @Override public void mousePressed(MouseEvent e) { System.out.println("clicked"); switch(e.getModifiers()) { case InputEvent.BUTTON1_MASK: leftClick(); break; case InputEvent.BUTTON2_MASK: rightClick(); break; } } public …

Hey guys. Im writing a console based application which i want to convert to a windowed application. however, i still want the user to be able to type in input and for my program to be able to output in a console based style, i'd just like the option to …

Are constants, defined by using the keyword const , external linkage or internal linkage? Can constants be modified using pointers? What about constants defined using by #define?

I have this code : for downloading image from the web [CODE]PictureBox1.ImageLocation =""[/CODE] and i want to add Progress Bar if start download the image start the Progress Bar and when finished the download Progress Bar =100

how can a user be able to type what ever he wants such as " i went to the park...", i tried to do it but with my string variable it only read the first word typed in, such as i in this case. please help.

[CODE]i understand int cars[23]; can be accessed using pointer notation such as... int cars[10]; int *carz; *(carz+1); // carz[1]; im curious as to what the equivalent pointer notation would be for a structure..for example struct car { int wheels; float gas; float engineHP; }; struct car cobalt; cout << cobalt.engineHP …