Software Development Forum

hey all.. I'm [U]new[/U] to VB.net and i wanted to find out how i could load the names of files(in a specified dir) into a combobox? I knw i should have posted code..but i only have an idea as to what should happen. correct me where i'm wrong. 1. get …

I making a program. I know most of it just need help with the number generator. I want it to occur the number of times inputted.

If I have SQL authentication enabled, and a user (UserA) on a database has permission to delete rows on TableA, but not TableB, and there is a relationship between TableA and TableB, can UserA successfully delete a record on TableA and have the changes (based on relationships set up) cascade …

Hey guys, I am writing a web application in asp.net using c sharp. I have a web page that lets the user create a program. In this system a program is made up of many applications and an Application can belong to many programs hence a many to many relationship. …

I need to instantiate a class during runtime based what a user has selected in a list, but these classes each have their own new specific functions and variables, they use the same named functions, but set different variables, and different numbers of variables. I made an example, since my …

I am trying to save an image with this line [CODE]ImageIO.write(image, "JPG", new File(fileDestination.getText()));[/CODE] but it is giving me an error. [CODE] java.io.FileNotFoundException: C:\Users\Adam (Access is denied) at java.io.RandomAccessFile.open(Native Method) at java.io.RandomAccessFile.<init>(Unknown Source) at javax.imageio.stream.FileImageOutputStream.<init>(Unknown Source) at com.sun.imageio.spi.FileImageOutputStreamSpi.createOutputStreamInstance(Unknown Source) at javax.imageio.ImageIO.createImageOutputStream(Unknown Source) at javax.imageio.ImageIO.write(Unknown Source) at screenCapture.CaptureScreen.actionPerformed(CaptureScreen.java:111) at javax.swing.AbstractButton.fireActionPerformed(Unknown Source) …

I am trying to take a user input phone number and perform calculations on it as an integer of type long long. I've tried this but it only reads the first 3 numbers then when it reaches the hyphen it stops. [CODE=C] printf("Enter Number: \n"); //get input from user count …

I am using OpenWatcom to code C++ for interest, and I am in search for better compilers. OpenWatcom doesn't have string input and output operators overloaded, I always have to use workarounds. Can anyone name some [COLOR="#ff0000"]standard[/COLOR] compilers which compile and link [COLOR="#ff0000"]pure DOS exectables[/COLOR] for me?

#include<iostream> using namespace std; class area { double dim1, dim2; public: void setarea(double d1, double d2) { dim1= d1; dim2 = d2; } void getdim(double &d1, double &d2) { d1 = dim1; d2 = dim2; } virtual double getarea() { cout<<"You must override this functionn"; return 0.0; } }; class …

hi, i have a JButton object and i added an actionListener to it. it works well with a mouse click, but if use the keyboard enter key while the focus is on the JButton, nothing happens. do i need to add a keypress listener on top of the actionListener to …

Hi i have a task to stores marks for students, a struct is used to store this. the thing giving me trouble at the moment is how to read and store a floating point number within a struct, the data specifically for the mark is on 1 line of a …

As the thread states, I'm curious as to how I could come across this. I can open the file with an OpenFileDialog, or edit it while it's in process, but not open it, edit a memory address, then resave it. Mainly because I have no idea what it'd be called …

Hi all, I am trying to write a list of complex numbers to a csv file. The list looks like: [QUOTE] cpl1 = [(-6.4703169037894082e-12-2.7429131015110908e-12j), (-9.0688415110840026e-11+1.7513018812920222e-11j), (-1.8522787470498514e-10+1.3074128585310874e-11j), (-5.8563154325952382e-10-6.4430377699764563e-10j), (2.1451734832922398e-10-9.987741744765799e-10j), (2.9095870157647141e-10-6.3227384439201728e-10j), (1.9448214150230569e-09+5.1612969453884716e-10j)] [/QUOTE] The complex numbers are to be written to file to look like: [QUOTE] real, imaginary, real, imaginary, real, imaginary, …

Hi everyone... My boyfriend's birthday is on Saturday, August 13...and i wanted to do something really different this time...since we are 1,000 miles apart...i was thinking if i could write a program which would generate random messages which I would already have written in the code... i was thinking of …

First, I want to admit I am totally new at Linq queries. Your help and patience are GREATLY appreciated! I am trying to perform a query on a loaded XML document with the code below, but no matter what I try, I continually get an unhandled NullReferenceException error: [CODE] XDocument …

Hi, I am trying to create a make file for a java project. It has a directory structure look like this: src folder [INDENT]-package1[/INDENT] [INDENT][INDENT]-java files[/INDENT][/INDENT] [INDENT]-package2[/INDENT] [INDENT][INDENT]-java files[/INDENT][/INDENT] [INDENT]-package3[/INDENT] [INDENT][INDENT]-java files[/INDENT][/INDENT] [INDENT]-package4[/INDENT] [INDENT][INDENT]-java files[/INDENT][/INDENT] I am new to makefile, but tried to create one according to some tutorials on …

[url]http://www.daniweb.com/software-development/python/threads/187060/1572491#post1572491[/url] based on a previous thread I would like to know how to replicate the appearance of a house five times on the gasp interface via the script below: #!/usr/bin/env python from gasp import * # import everything from the gasp library begin_graphics(title="Houses At Night", background=color.BLACK) # open the graphics …

How can one demonstrate Multiprogramming and Idle loop in C ??? Please help !!! I can't think any way ..... :?: Thanks

The below code is showing error i checked lots of time didn't find any error please help me. [CODE] class emp{ int id,sal; String name; emp(int id,int sal,String name) { this.id=id; this.sal=sal; this.name=name; } void show() { System.out.println("Name: "+name); System.out.println("Salary: "+sal); System.out.println("ID: "+id); } } class manager extends emp{ int …

I use Code::Block 10.05 I'm starting with some lines of code. No error found when I compiled it. But although I ("run", "Compile this current File","Build") in menu Build, I still cannot debug my program because in menu Debug, ("start", "stop Debug", "next",etc) cannot active :( I have read on …

Hi all, This code solves the Euler Equation of Gas Dynamics which is a system of partial differential equations. The problem is that it takes very long to run than it would normally required. Things become worse after including the functions "S_p(a_p,a,b)" and "S_m(a_p,a,b)" which are called within other functions …

hi there im just new with java i just want to ask can 1 dialog box contain multiple lines i min like this one JOptionPane.showMessageDialog (null,"\n "+EN ) ; somehow i want to add just like JOptionPane.showMessageDialog (null,"\n "+EN , "\n another messages here then" +DR , "\n and another …

Is there any code to create or generate bar codes in vb6? Please help me, advance thank you for all that will respond :)

Hello, I am working on a program that generates 100 random integers and then sorts them into even and odd. When i go to compile the program, it tells me that it cannot find variables randonum, evennum, and oddnum. I'm new to arrays so i'm guessing i declared/ defined them …

In my APP the principal form open a second form (MothPayment) where the user pay a moth of the student. Well, made the payment, the form close and return to the principal form. The problem is that textbox fields like student balance, paid month , etc only refresh if the …

i want to start my codng immdiately about linkng the database in vb...but i dnt knw how...anybody there hu would lke to help me hw i can lnk my database...please...tnx guyz.....

My issue with this code is that when it is executed it does loop correctly. It just runs once and my goal is to have it run 100 times. I am using Python version 3.1 and could really use some help... Considering I am the only geek with in a …

[CODE]import random print("\t\tWant to know your future?") input() fortune = random.randint(1, 5) if fortune == 1: print("You are gonna die today") input() elif fortune == 2: print("You will find love") input() elif fortune == 3: print("You will make it big today!") input() elif fortune == 4: print("You friends will betray …

I am making a game where random obstacles appear. The obstacles will move towards you. I currently have this code to animate the obstacles. [CODE] for (int i = 0; i < obstacle.size(); i++){ // animate walls obstacle.elementAt(i).x -= 1; } [/CODE] My vector multiple instances of the Walls class …

[CODE]void Addcostumer(){ struct CustomerData *p; char another ='y'; char anothers ='n'; CustomerData *newcous; char str1[80]; char str2[100]; char str3[20]; //fseek(fc,0,SEEK_END); p=(struct CustomerData *)malloc(sizeof(struct CustomerData)); newcous= new CustomerData; printf("Costumer Name:"); fflush(stdin); gets_s(str1); strcpy_s(newcous->CName,str1); printf("Costumer Address:"); fflush(stdin); gets_s(str2); strcpy_s(newcous->Address,str2); printf("Costumer Puhelin:"); fflush(stdin); gets_s(str3); strcpy_s(newcous->Puhelin,str3); if ((fc = fopen("c:\\users\\Emmas4impact\\Documents\\customer.bin", "wb"))==NULL) { printf("Cannot open …

[CODE]void SubGen(char* s) { //rearrange s ... for(int i=0;i<strlen(s);i++) { for(int j=i+1;j<strlen(s);j++) { if(s[i]==s[j]) { char temp=s[i+1]; s[i+1]=s[j]; s[j]=temp; } } } //s arranged.... Sub[0][0].push_back(s[0]); for(int i=1;i<strlen(s);i++) { if(s[i]==s[i-1]) { vector<string> temp; for(int j=i-1;j<Sub.size();j++) { for(int p=0;p<Sub[j].size();p++) { temp.push_back(Sub[j][p]); } } for(int j=0;j<temp.size();j++) { temp[j].push_back(s[i]); } Sub.push_back(temp); } else { …

My panel's paintcomponent method draws a line based on the initial click and the current position as the mouse is dragged. Releasing the mouse leaves one line from the mouse press location to the mouse released location. The problem is. on the next click/drag, the old line disappears when the …

Hi I came across this question in C++ Primer by Stanley Lippman. [CODE] int main() { const char ca[] = {'h', 'e', 'l', 'l', 'o'}; const char *cp = ca; while( *cp ) { cout << *cp << endl; ++cp; } } [/CODE] According to me, this code should produce …

Hi all, I am generating comboboxes in runtime in a for loop. Then, when click ok i want to get the selectedItems. So how would i do this. PLZ help me. this is how i generate comboboxes in th page load. [CODE] NewBookEntry nbe = (NewBookEntry)Application.OpenForms["NewBookEntry"]; int lable = 0; …

[code] public class exception4{ public static void method(){ try{ exception4.method2(); throw new Exception("method throw"); } catch(Exception e) { System.out.println("method Exception caught"+ e); //throw e; } } public static void method2(){ try{ throw new Exception("method2 throw"); } catch(Exception e) { System.out.println("method2 Exception caught"+ e); e.printStackTrace(); [COLOR="Red"][B]//throw e; [/B][/COLOR] [COLOR="Green"][U]if include this …

I need to know how I can set up a action listener for an array of buttons. I am trying to make a tic tac toe game. I am new to programming. I have seen someone on here ask a similar question but I could not grasp what they where …

[CODE]# include<stdio.h> # include<string.h> int main(int argc, char **argv){ char phone[16]; int num = 0; int count = 0; printf("Enter a phone number: "); count = scanf ( "%s%n", phone, num ); memmove(phone + 3, phone + 2, 10); memset(phone + 3, '-', 1); memmove(phone + 7, phone + 6, …

Hi!, I get InvalidCastException. It says "Unable to cast object of type 'HD.MainMenu' to type 'HD.NewBookEntry'" and points to this statment "mpg=(NewBookEntry)fm" Plz help me to solve this. My code is: [CODE] FormCollection fms=Application.OpenForms; foreach(Form fm in fms) { mpg=(NewBookEntry)fm; } mpg.Dispose(); [/CODE]

hi all in form1 I place 3 button and 1 datagridview ,btn refresh,btnload , btnnew and Datagridview dgv1 1. I change the value of a cells in datagridview (right after Form1 is loaded),and then click btnrefresh 2. I click btnnew to clear the dgv1 3. I click btnload to re …

hello all how to express parameter with decimal (which has 2 scale) //---------------------------- mysqlda.UpdateCommand.Parameters.Add("@Name", MySqlDbType.VarChar,40, "Name"); mysqlda.UpdateCommand.Parameters.Add("@Kode", MySqlDbType.VarChar, 8, "Kode"); mysqlda.UpdateCommand.Parameters.Add("@Price", MySqlDbType.Decimal ,10,2, "Price"); //---------------------------- line 3 give me error thanks denny

I want any amount ending in 98 cents. Three examples: 5 euros x 1.25 euros then the result is [COLOR="red"]6.25[/COLOR] euros, the program change this to [COLOR="Green"]6.95 [/COLOR] 4 euros + 2 euros then the result is [COLOR="red"]6.00[/COLOR] euros, the program change this to [COLOR="green"]6.95[/COLOR] User type to [COLOR="red"]6.70[/COLOR]then the …

Hi Everyone, Most recently, I've been working on a small project to sort through multiple text files which have all the same strings. Basically, I am looking to sort through and create a text delimited file for future use. The below script is what I have come up with so …

[B]Could u tell me why the following problem is coming on running the program where im getting the out twice each time wen i shd get it only once , wen im entering a input im getting the menu twice[/B] [CODE]import java.io.*; class Television{ private String MANUFACTURER; private int SCREEN_SIZE; …

I am new to C# and have encountered a problem with the following if statement... [CODE]measurement = GetRandomInt(0, 2); measurement2 = GetRandomInt(0, 2); if ((measurement == 1) || (measurement2 == 1)) q3correct = 1; else q3correct = 0;[/CODE] The statement works around 80% of the time and i have checked …

I am making a program where i have to write a recursive function that reverses a string. I am a new programmer and need help. The function should return a String and take only one argument, also a String. [CODE]import java.io.*; public class RecursiveFunction { public static void main(String [] …

Just wondering is there any way to modify Classpath in your program and force them to include a new directory in classpath ??

so i need to have a script that takes input from a command and parses it for some info im still pretty new to perl, but from what i understand, to do something like that youd have something like: [CODE] while ($line = <STDIN>) { blah blah blah } [/CODE] …

Hi all, I got a problem with part of my application, it's an exception I've never seen before. Overload resolution failed because no accessible 'New' can be called without a narrowing conversion: 'Public Sub New(original As System.Drawing.Image)': Argument matching parameter 'original' narrows from 'Object' to 'System.Drawing.Image'. 'Public Sub New(stream As …

im not able to figure out the meaning of this piece of code: [code] public int void countTokens(String s) { StringTokenizer st= new StringTokenizer(); return st.countTokens(); } [/code]

how do i determine the winner in a game rock paper scissor ? i have 10 rounds and the one who has 7wins shall be declared as the winner but how am i supposed to do that ? great help is highly appeciated :)