Software Development Forum

Hii guys.... i am a new programmer of java. i want to implement a problem using CALL BY REFERENCE as i have done in C. please help me to do this.

Hello Experts, How can i save the optionbutton and checkbox value in sql database? please send the query: dim cmd as new sqlcommand("insert into [tablename] values(........)",c.con) please help me :)

Hi I am using jasper reports to generate pdf reports from product data.I am storing the pdf file into a database column (blob) using FileInputStream.I have got a desktop application which retrieves the tables from the db.What would be the best way to retrieve and view the pdf file in …

Hi i have a directory containg about 300 files with different extensions like : .txt, .php, .html,etc.. and i have tried this code but it displays a files list instead of only thier extentions [CODE]string[] filePaths = Directory.GetFiles(@"c:\tmp]");[/CODE] so what i need to do is to display all the files …

0 down vote favorite share [fb] share [tw] share [in] i am working on a tiny tiny app that just uploads a file to the ftp server, i have reviewed my code but am quite unable to locate the problem, here is the code, [CODE=C]#include "stdafx.h" using namespace System; #include …

When i pass the parameter and run the report it works fine as i close the form it closes the form is there any way so that i should be able to close the crystal report viewer and pass the parameter again and should be able to view report again. …

Hello, basically I want to read an input .txt file, and check to see if '+' or '*' is at the beginning or end of the file. The file can have a space at the beginning, and that should be ok. This is the code that I think should work, …

Hello, I'm learning Python. It is my first interpreted language. I have some experience with C and C++. I must admit that it's very hard for me to accept a concept of interpreted language. For example I write code in C++, compile it, link it and I have .exe file …

I'm writing a simple cryptography program that uses ISAAC, and I've run into a wall. I am planning on XORing each of my input bytes with 1 random byte each that gets returned from the ISAAC PRNG. This is basically what I'm trying to do [CODE]while(input character != EOF){ read …

As the title says- I'm not sure which appdata folder to use- Should I use CommonApplicationData, The directory that serves as a common repository for application-specific data that is used by all users. Or LocalApplicationData, The directory that serves as a common repository for application-specific data that is used by …

Hello i have created a form that has a combobox.the combobox displays the products.how can i add a selected product into a listview?????

is there anyway to generate numbers from 0.0 to 999 999 without repetition? I am thinking of making an array that you can put 27 integer datas in it like this [CODE]double amounts[] = { 0, 0.01, 1000000, 25, 250000, 75, 50, 1000, 200, 100, 400000, 750, 5000, 750000, 500, …

Hello, I'm just starting to learn Java, and for a summation program that we started in class, I've been stuck on the question as to why this brings up an error message when I try to build it. Please advise me. [CODE]import java.util.Scanner; public class summation{ public static void main(String[] …

Hi, I was wanting to write a (ba)sh script to allow me to wait for the detection of a new USB device, and when that device is detected, execute some commands. The scripts are intending to be working on the principle that whenever I plug in a usb device a …

[CODE]import java.io.*; public class Prime{ public static void main(String[] args) throws IOException { BufferedReader jill = new BufferedReader (new InputStreamReader (System.in)); boolean isPrime = true; System.out.print("Enter number: "); int input = Integer.parseInt(jill.readLine()); if(input < 2){ isPrime = false; } if (input == 2) { isPrime = true; } if (isPrime) …

Hello. I'm using ncurses with a side project I'm working on, and I'm using colored characters. To use colors, you have to wrap each mvprintw() function with some code to set the color. I thought I'd write a function that wraps mvprintw() so I could just specify the color whenever …

I'm working my way through Accelerated C++ and I've come across this exercise. The read_hw function works fine if it's void as long as I comment out the "return in" line. The author didn't bother to explain why he's returning a reference to the cin that was passed in the …

I have the following code. My program loads 20 pictures in one panel and each pictures has for the moment like 500 Kb, but in the future they shall have like 2~6 Mb. When I use this part of code, my program that uses only 6 Mb of memory, but …

I attempted to make a shell script to launch a java program packaged into a .jar file. It should have been pretty simple. [CODE] #!/bin/sh java -jar Test.jar [/CODE] but for some reason this script never runs. i've manually executed the command and it works perfectly, i've checked the path …

Hi, My application is in VS2008 coded in Vb.net. I have a datagridView which is getting populated from the Database.I has RegNo,RollNo,Name etc fields.The data in the Name column of database is coming from 3 columns of a certain table from database. This is how im concatinating it and displaying …

Is it better to use structs over classes for serializing class settings? Class settings can have initial default values. [code] [Serializable] public class LevelSettings { // Default level values public int Depth = 3; public int Height = 3; public TileSettings[] TileSettings = new TileSettings[27]; public int[] TriangleIndices = new …

Hi, I am trying to write a program having file handling. In it, I write an object in a .dat file. Is there any mechanism to read a specific object from a file? Is there any method like 'fseek()' as provided in C?

Greetings, i'm currently developing a web browser for my school project (i'm kinda new to advance visual basic)... it's 75% complete and the only problem i encountered is that when i enter items for the combo box it accepts duplicate .. for example i entered [url]www.daniweb.com[/url] and re-entered it again, …

Can anyone help me with this? or alter the code of mine when it comes to the user Input here's the block of code of mine [CODE]public int Remove(int i, Briefcase c[], String[] m) { int nChoice = 0; System.out.print("\tPlease remove " + i + " cases: "); nChoice = …

Hi, I am just starting to code in C. While using the [code=c]#define sec 3600[/code] the compiler returned an error - expected identifier or ‘(’ before numeric constant. [code=c]#define sec 3600 #include<stdio.h> #include <stdlib.h> int main(){ /*Rest of the code*/[/code] If I change sec to seconds, the compiler does not …

Hello guys, I am very new to Java. I've been trying to select two different tables but fails. The error is "Invalid operation at current cursor position.". Here is my code. [code] private void display() throws SQLException{ TableModel model = schedTable.getModel(); PreparedStatement stmt = con.prepareStatement("select * from APP.SCHEDULE"); ResultSet sched …

Hi, I am working on a small application that uses a WebClient to download an XML file via an API call. Just downloading the file is fine, that all works but I really wanted some way to show the download progress to the end user. Searching on the net I …

hello i am a beginner python developer and i am search about python projects for beginners for i learn and know how can i make program in python and thanks

I'm trying to using Try, Except to check an input() to make sure it's not blank. I'm using it at a different part of my program to check a float(input()) and it catches it if someone leaves it blank or enters a string, but I assume that's because it's checking …

Hi, I'm writing a program that checks parens/brackets/braces if they are paired. Tha catch is I have to write my own stack functions, this is my code so far, it used to work when I was working with just the parentheses, now that I added more options it's not working …

Hi, I would like to know the significance of lua methods beginning with an underscore.. for example __init().. Thanks !!

I wrote c program that outputs all permutations of a word to a txt file. ate aet tae tea eat eta I also have a txt file of all the words in the dictionary. I would like to take the first entry in permutations.txt and search dictionary.txt to see if …

I have to write an application which uses the Vigenere cipher with the Italian alphabet (only 21 characters, excluded J,K,W,X,Y). After a day of trying this is the code that I wrote [CODE] #include "vigenere.h" #include <string> using namespace std; Vigenere::Vigenere(string str){ key = str; key = StringToUpper(key); for(int cnt …

Using Visual Studio 2008, I have a form with a datagridview. I want to use a button called BTNDelete and I need help on deleting the selected row from the datagrid then update the datatable.

Hi I am wondering how to point to a relative file that would be the same on all computers. How would I go about this. Many Thanks

Before I get started with this question I would like to point out that this is a small app I am creating to not only learn more C++ coding but also to choose who drives the fifth day in my carpool group for college. I am creating an application in …

This one has me stumped. I feel like it is something really simple, but I can't figure it out. I have a combobox that is triggering the population of some checkboxes depending on the user mode. For some reason, when I put a MsgBox() at the beginning of the function, …

Hi There, I have a datagrid table with 5 columns and as many rows as the user enters. Is there a simple way to export the contents of the table to a CSV file? The columns are named; a,b,c,d and e Im using VB 2005. Mant Thanks Alex

hi ihave many files like File.txt anotherfile.txt Log.txt . Etc... And i want to rename these files into something like this File1.txt File2.txt File3.txt . Etc So how can i do this in c# Thank you for your help

how can i conver ascii code to string. for example i want to conver 65 to "A".

hi pls help me to read data from a website. can it be done with VB? if yes pls guide me. thank u

Can anybody help me for creating subscript and superscript in Richtextbox in c#. I am done in vb.net but could not convert it into c#. here is my vb.net code... [CODE] Public Sub SetSubScript(ByRef rtb As System.Windows.Forms.RichTextBox) Dim iPos As Integer Dim strRTF As String With rtb If VB6.PixelsToTwipsX(.SelectionCharOffset) >= …

Heya guys, I have a very small snippet that drives me crazy right now. [CODE=csharp] int arg1; int expr1 = arg1 = 16; [/CODE] That silly online translators giving me the following output [CODE=vb] Dim arg1 As Integer Dim expr1 As Integer = InlineAssignHelper(arg1, 16) [/CODE] Great but what should …

Issue with how to properly use push_front and pop_front. I have a class named Account I am suppose to be able to be able to add new accounts and new balances but I can't find the proper documentation on how to do this. I am trying to figure out what …

Hello friends, I have a list similar to ['9.48E+02', '9.42E+02', '9.79E+02', '9.58E+02', '9.28E+02', '9.47E+02'].List has around 9000 elements. I need to convert this list in to file with a format similar to 9.48E+02 9.42E+02 9.79E+02 9.58E+02 9.28E+02 9.47E+02 so that i can access it in another mechanical software i.e without …

okay i came up with some code that reads in a file, and on the file are names of shapes and their widths/lengths. after the file is read in, it tokenizes whats in the file, it then calculates what shape it is and then takes the information and calculates the …

Hello Everybody !!! I have the problem about my Digital Clock, You could see this on my attachment. It works perfectly, but one problem that when the second == 10, the label name second lblSed appear "010", when it's up to 11, it appear normally. I dont know what wrong …

Hi, My application is in VS2008 coded in VB.Net I have a DatagridView.I have a Save Button on my Form.Now my requirement is i want to the Data that is populated in Datagridview when i click on Save button. I want to do it using Update Query. below is my …

Yes, I am a total newbie. I am doing this code for homework. It is giving me an error on the method line is saying that it is missing.Please help. [CODE]import java.io.*; public class discount {public static input in = new input(); public static void main(String[] args) throws IOException; {double …

I'm obviously a noob @ c++. Have a question. is there any way i can restrict user to input only numeric value and make a loop if user enters non-numeric value. for example for conversion from kilo to pound if user enters some garbage like "afshdgafg" in cin. is there …