Software Development Forum

Hi guys I have successfully set up my database which through my GUI I am able to create my tables that i wish and insert data into the table. My problem is through that I can only insert one row of data into a table so what would I need …

Hello, I am doing a simple calculator program. I have a combo box and assigned numerical values to a string variable under each case number using the same variable name. My problem is I don't know how to assign that value. When I use the current code, it pulls the …

Hi there I've got a problem with functions, where it seems that function call return zero instead of the actual variable value, I will appreciate any help from you guys. I will post the major code parts because the program is big. I get the totallength variable value right but …

Hello guys, Well, here's a simple one for you, which I just could not find the answer to due to lack of finding a good way to put it in words for Google. I'm pretty much a newcomer to Java, first project I used Java for, actually, and it was …

Hi there I'm trying to ofstream (output) data to an excel file (csv), and I keep getting this error "file was not declared in this scope". Can you guys help me on this? where is the error? This is the output function, [CODE]void FileOutput() { int t; static float totallength=0; …

Hello all, I've been fooling around with some code trying to teach myself somewhat about Linked Lists. I wrote this quick program that creates a random number in each node of a list and asks the user to guess the number. I have a quit choice that, when executed alone …

I post this thread in shell scripting too I want to search the user input in file (by lines) but not all then with this line search on another file ( with the specific line) and show to the user. Example: file1.txt ======= a aa aaa aab aac file2.txt (corresponding …

Hello, The following program has three JPanels - one to hold the image, one for the JComboBox and the last one for holding the JLabel, JTextArea and JButton. Once a selection is made in the JComboBox, the user will enter text in the textarea and press the button. The button …

hello, I need help for my code, I created an interface that contains a button and a JProgressBar with the netbeans interface, but I do not know how to change the color of the JProgressBar, I tried the method setBackground (Color.color), click right on the JProgressBar proprties Does not change …

Quick question. A few of the commercial/closed source applications I use contain an external exception handler or crash catcher and I am wondering if anyone has ever implemented something like this and would be willing to discuss the use of such a method of exception handling? Basically the way it …

Hi, I'm trying to run code that asks a yes or no question. If a yes or no isn't entered, then the question will continue to re-ask say every 3 seconds until a yes or no is entered. Here's the basics of it: [code] while True: response = raw_input(" Are …

Hi All, I have a vb net program that shows a datagridview which pulls data from a mySQL database. When the user clicks on a row (I am checking for a 'cellclick' event), a text box is filled with data from a hidden column in the datagridview. This works fine …

Hello, I am learning classes, and find it a bit difficult... :-( Mine intention is to add subject(predmet) and mark to the objet janko but if I search in self.predmety, I get False, means that it can't recognise predmet in self.predmety list State of self.predmety is as folloving: [<__main__.Cpredmet instance …

I'm study Compressing and Decompressing Data Using Java APIs from [url]http://java.sun.com/developer/technicalArticles/Programming/compression/[/url] but when i compile this example: [CODE] import java.io.*; import java.util.zip.*; public class UnZip { final int BUFFER = 2048; public static void main (String[] args) { try { String fileName = "your zip file" //but your zip file …

Simple question: is it a performance issue or bad form to have if statements without a else following? As an example, an event that is triggered when a listbox selected index changes depends on the selected index value to run, and during the change, the value switches from some integer …

I am using C# on visual studio 2010. i have tried downloading a spreadsheet from yahoo by finding the location of the download and then using: [CODE] WebClient wc = new WebClient(); wc.DownloadFileAsync(uri, filename); [/CODE] for the example i tried taking apple as an example: [CODE] Uri uri = new …

Hi All; Im just making a simple Desktop app. Ive got a need so that the user could be able to add data to the table dynamically. Ive done implementing the table and also code for adding rows. Issue is after i add the row it is not displayng in …

hello all I use notepad++ to create my code I use dos command to javac the code some times when there is error in my code the the dos console shows many lines of error message my question is : if the error lines's message is 100 lines or more …

I'm teaching pointers to myself through my book and I'm stuck on one of the practice problems. Here it is: [CODE]//What is the output of the following C++ code? int x; int y; int *p = &x; int *q = &y; *p = 35; *q = 98; *p = *q; …

Hi all, I am trying to separe my data DNA because it has a lot of name. It has about 43 litte file in one data. I made the small script to solve one name of data but I did not succes. The result was not enough. My script is …

hello all, I have a question about assigning variables values based on values stored inside an sql database. I have the connection part down, but here is my basic set-up. I have a table with the values {username, password, isAdmin}, where username and password are strings and "isAdmin" is a …

I have a DataGrid table like this: [img]http://ni8.upanh.com/b1.s24.d1/f869170161faa9e6ad2c272d6f66228e_40513398.capture.png[/img] How could I change the plain-looking arrows in the RowHeader into row number (Like 1,2,3...)??? Thanks for any help from you guys!

Hi, i'm doing a school schedule and i have this: [URL="http://desmond.imageshack.us/Himg13/scaled.php?server=13&filename=22875721.jpg&res=medium"]http://desmond.imageshack.us/Himg13/scaled.php?server=13&filename=22875721.jpg&res=medium[/URL] as you can see i have the times on the first column and that is from table "tempos_letivos". now i have a "schedule" table where is the hours of class of the courses, but in this table the cod_prof …

Hello guys, I've recently come across this problem and have spent quite a bit of time trying to comprehend what the question is actually telling me to do :S [COLOR="Green"].If a, b, c are bool-variables, a is true, but b and c are false, write an expression that computes the …

Hi people, How can I put a JRadioButton wherever I want in a JPanel? I tried setLocation() but it did not change anything. It is still on the north-center part of the panel. I think I'm missing something, but I can't figure it out. Thank you in advance.

So i need to create a win32 console program that basically asks a user to input certain information about random people...ie: height, shoe size, weight. after the user has entered the information for the first person, the user is then prompted to enter the same information for another person. eventually …

I recently ran the following command from the command line and it worked find . -name '*jrAPS*_ouput.log' -exec grep '<string expression>' {}\; -print I put it in a shell script like this and it did not work find . -name '*jrAPS*_output.log' -exec grep '<string expression>' {} \\\; -print the result …

Hi, I have a windows form with a "ComboBox" on it. The "ComboBox" has the words "Production" and "Development" in it. If the user selects "Production", I need my C# code to point to the Production database. If the user selects "Development", I need my C# code to point to …

Hi, I want to know how to save elements properties even after the form closes, and resume it back when I open the form. [CODE]using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Windows.Forms; namespace WindowsFormsApplication2 { public partial class Form1 : Form { …

hi. soo i got this codes off of some site. its for a cool form entry and exit effect. but since im using this in my project i need to know what this lines of codes mean. and i mean every line. the site where i got it from doesnt …

Hello forum, Vaironl here. I already asked this question with no luck. So now I will to repost it without the code. I have a JPanel which contains labelsand JTextField + other components. When I minize the window and then restore it The components stay in place but the are …

I'm creating a program that carrys out certain things dependent on the user input. One function is to read text from a text file, another is to add text to the same text file. I'm unsure about how to add an exception handler to make sure the text input is …

I got this code, when i compile it it shows this error: Traceback (most recent call last): File "C:\Users\User\Desktop\Server2.py", line 13, in <module> UDPSock.bind(addr) File "C:\Python27\lib\socket.py", line 224, in meth return getattr(self._sock,name)(*args) error: [Errno 10048] Only one usage of each socket address (protocol/network address/port) is normally permitted If you can …

I have to write a program that prompts the user to select (but not disclose) a number between 0 and 31 and then asks exactly five questions to determine the number the user has selected. Each of the five questions is posed by presenting a group of sixteen numbers, asking …

Hi friends., I am now try to study LINQ in C#.net which book can i refer and that is easy to learn and give perfect example code snippet

Can anyone tell me y is it that taxDeduc won't return the value? [CODE] import java.util.Scanner; public class PayollComputation { public static void main(String[] args) throws Exception{ Scanner get = new Scanner(System.in); //variable declaration int ctr, loc = -1, payrollPeriod, daysAbsent, minsLate, oTHours; int tempENo = 0; char ans, ans2; …

Hi everybody i need a bit of support in my vb coding. i have publish data on data grid(in vb express 2010) and want to check for the data in each an every row. there are few columns and i want to check the string "OK" under "Status" column. if …

Hi , what is the behaviour of below pseudo code. [CODE] pipe(fd) if(fork()){ read(fd[0]); } else { write(fd[1]); write(fd[1]); } [/CODE] I understand how system calls work , but could not understand the behaviour when used differently. secondly if a process uses while(1); in side its block, will the entire …

Hi all. I have a program in vb.net and with it I have an expiration Key. I would like this key to be valid for 3 moths for example. I don't want to use the users system.date because to prevent them from changing the date. I there a way I …

[CODE] Dim conn As New OleDb.OleDbConnection Dim dbprovider As String Dim dbsource As String Dim ds As New DataSet Dim da As New OleDb.OleDbDataAdapter Dim sql As String Dim maxrows As Integer dbprovider = "PROVIDER=Microsoft.Jet.OLEDB.4.0;" dbsource = "Data Source = d:\sprrg\scm\scm\sprrg.mdb" conn.ConnectionString = dbprovider & dbsource conn.Open() sql = "select …

I'm working on a program that lists a numbers prime factors. I've finished the bulk of the work and all I have left is the first print where it says the number is prime or composite. I know the way I'm going at it is wrong because it wont work …

:C my fresh install Netbeans 7.0 won't open and it says "JVM creation failed" can anyone pls tell me what's wrong? >.<

I have an alpha beta interface and have implemented a tic tac toe class from it. For some reason my AI tends to occasionally make stupid moves (such as making a fork rather than blocking a 2 in a row) I was wondering if anybody can see where I went …

Basically, i've been told to initialise a grid into the "canvas" section of this program i've made, I need to make a fine grid that stretches across the whole canvas horizontally and vertically, 10 x 10 pixels apart example of the code i'm editing to do this below... [CODE] class …

Hello, The following program displays the text area for the entire JFrame even though I have set the dimensions of the text area to be 10 x 15. Any help will be greatly appreciated. Thank you! [CODE]import javax.swing.*; import java.awt.*; public class Scrollers extends JFrame { JTextArea area; JButton button; …

Can anybody tell me where i can find the connection string for using on a asp.net form. I am trying to connect a mysql database to it, and wanted to connect a access database to test the main functions. But i am having a hard time finding any of these …

hi.. im trying to get a line using getline() function from an input file, but it is ignoring end line character. is there any other function that would including the end line character? btw, im not allowed to use something like aString+'\n' thanks in advance~

Okay, I am receiving scores and names from a text file to calculate averages. 1 line contains a name, the next line will contain 3 scores separated by spaces. Looks like this: Tom Babidal 93 94 99 Billy Marks 13 98 56 etc etc My code seems to read the …

Hi, So im trying to create a deposit method, but to no success. Can someone pls help me ?? This is my code for far: [CODE]static void depositCurrent (ArrayList<Current> CurrentListIn) { System.out.println ("Enter account number you want to deposit money into"); String accountNumber = EasyScanner.nextString(); boolean flag = false; double …

Hi i wan to start an application but without showing its window Thank you