Software Development Forum

i have a problem with editing data in datagridview in vb.net 2005 ,, can anybody give the full code for that!! i appreciate your help..

hi..I am really new in Java software development..I am trying to make sure that the JXTable will refresh or update the data after the save button is clicked which means that the JXTable will display the lastest data that retrieved from the database..as what I had googled through the methods …

When I try to run what I have so far in my program, I get an error when I enter in the date as 11/11/2010 that states "Exception in thread "main" java.util.InputMismatchException". Why am I getting this and how do I fix it? Also, I have some comments in the …

f i opened a document in terminal through this [CODE]os.system("open " + pathName)[/CODE] how should i close it? is there something like [CODE]os.system("exit")[/CODE] or something Thanks

I can't believe I'm asking this, but this assignment I was given is proving very difficult. I was asked to find the ECLOSE function of a given Epsilon non-deterministic finite automata. All it is is the BFS tree of a graph from a given point, provided that the vertices are …

Hi, I need to make a program that counts the frequency of characters in a file, then outputs how many times each character appears in it. I am trying to make a class for it, but I am having difficulties figuring out how to do the definitions for each method. …

So even though this is a simple project, I found a lack of good code on the web under this topic for multi lined strings. I thought I would share it with everyone. Hope it helps you! Prints file foward first, then in reverse (and yes there are many different …

hello, i need to write a program that computes an equivalent resistor value if it is in either series or parallel . (in c++). how will i write this in c++ : [TEX] R_\mathrm{eq} = R_1 \| R_2 = {R_1 R_2 \over R_1 + R_2} [/TEX] (parallel) [TEX] R_\mathrm{eq} = …

I am getting this error message error: expected primary-expression before 'enum' I can't figure it out. [CODE] #ifndef ROCK_H #define ROCK_H enum RockName {BASALT, DOLOMITE, GRANITE, GYPSUM, LIMESTONE, MARBLE, OBSIDIAN, QUARZITE, SANDSTONE, SHALE, ROCK_OVERFLOW}; class Rock { public: Rock() {myName = BASALT;} Rock(enum RockName) {myName= RockName;}//here is where I am …

I am brand-new to Python, and this is my first post on DaniWeb. Seems like a positive community, and I hope one day to contribute as a knowledgable expert and not a world-class newbie. I'm wanting to create a simple python program that "fakes" Shakespeare or haiku-style output. I realize …

Hello, I'm really new to doing Java only been doing it about 2 month so really a novice. I'm currently attempting to make my first app that is not a school project. I want to embed the current time in my application that is pulled from the local system. It …

When I run this code, the variable s has MZ as the first 2 characters, I never put them there, I don't know how they got there. I think it might have something to do with strcat, does strcat modify the source paramater at all? [code=c]void Con_Draw() { int i; …

[CODE] #include<stdio.h> #include<stdlib.h> #define MAX 5 char queue[MAX][30]; int front, rear, temp; void init() { front = -1; rear = -1; } void insert() { if ( rear >= MAX-1 && front == -1 ) { printf("\nQueue overflow"); return ; } temp = rear; rear = ( rear + 1 …

Is there a way to set an objects id or memory position? Ultimately I'm trying to change function "a" to function "b" while still preserving any saved reference to function "a"

Hi, I'm trying to make my own sokoban game in java. Sokoban is a top down 2D puzzle game where you move around a level trying to push boxes to the goal area in the least possible moves. I'm already pretty stuck at an early stage. My first objective it …

please could anyone do this program i am a beginner in c# and i need help can u do a program in which the user can enter two words and get the unrepeated letters between two words example computer program output will be cute please c# syntax. thnx

Is there a logical operator in python for and/or of strings? I am trying to write a weasel code. What I have so far: [CODE]import random import math keys='abcdefghijklmnopqrstuvwxyz ' monkey='methinks it is like a weasel' def attempt(): attempt='' for i in range(len(monkey)): x=random.choice(keys) attempt+=x return(attempt) library_attempts=[] for i in …

i just need a method that will draw me a flower but it says illegal start of expression error on line 36. what does that mean and how do i fix it? import java.applet.Applet; import java.awt.*; public class ProjectTwo extends Applet { public void paint(Graphics g) { ///background g.setColor(Color.blue); g.fillRect(0,0,1366,384); …

Hi there. I am trying write a module that can be executed at the command line and for some reason it's not working. Does anyone know why? [CODE]import sys def fibonacci(N): a,b =0,1 while b < N: a,b = b, a+b print b N=sys.argv[1][/CODE] Does it matter that I'm running …

Is there a function in VB.net that allows me to divide a really long String into a specific number of characters? For example: MyString= "Hello man! Wazzup?" group1="Hello " group2="man! W" group3="azzup?" The length of this string is 18 and I'd like to group it by 3, so each group …

Dear All I am working with a tab-delimeted files - first two columns are pairs of identifiers and third column is floating point number (0-1) denoting interaction strength between colmn1 and 2. sample file is also attached. eg- column1 column2 column3 john steve 0.67588 john matt 1.00 red blue 0.90 …

Hello guys. I want something like this. [CODE] if(getdate(month) == 1 && getdate(day) == 5) // 5 January // do code else if(getdate(month) == 12 && getdate(day) == 11) // 11 December // do another code // ... [/CODE] Is that possible ?

I'm just starting out in java, and I am totally stumped on this assignment. I have to make a program where the user selects a single character and then a file. The program is then supposed to check each character in the file, and output how many times that character …

#include <iostream> #include <string> using namespace std; int main() { //Declaring values. string oneWord, twoWord, threeWord, fourWord, fiveWord, fullWord; //Assigning values oneWord = "One"; twoWord = "Two"; threeWord= "Three"; fourWord = "Four"; fiveWord = "Five"; // Now we will define the full word fullWord = oneWord + ", " + …

i got a question about random number.. this is my sample data : jenny jason jerry peter chriss wayne ralf andre alexis alex garcia lorris ronny lyn armand i wanna pick name above to put in free slot like below.. 1.. 2.. 3.. 4.. 5.. 6.. 7.. - - - …

Question is below for the TestSlotMachine. SlotMachine class... [CODE] import java.util.Random; import java.text.NumberFormat; public class SlotMachine { enum CoinSlot { penny, nickel, dime, quarter; } //private String typeOfMachine; public double balance; SlotMachine() { // typeOfMachine = machineType; balance = 0.0; } public double deposit(double amount) { balance = balance + …

Hello all, I am having an issue with ifstream. Short explanation: 1. I ask the user for the filename and read it via cin 2. I store the input in a c++ string 3. I use the input as the filename Here's where it fails: When a user enters something …

I'm a beginner (3wks into C++) Payroll program is due in 1hour. I can't figure out what is wrong with my program. it compiles, builds, and runs but when I enter the name, it goes straight to the end of the program. heres the code <code> #include <conio.h> #include <iostream> …

Hi, I am working on a project in that I want to dispaly the avablible quantity from database. I have write some code for that code is working. but It display entier data from frist row to last. I want to display only particular item avaliable quantity. can any one …

Hello. Can somebody help me please to remove blank lines from listbox? And remove specified text from listbox (text line that i can specify in form code(But if i specify to remove line something like "http://www.google.com/" it will remove the line "http://www.google.com/" but doesn't remove line "http://www.google.com/chrome/" etc ). Please …

Can anyone help me? i'm looking for a [U][B]Point of sale system[/B][/U] that is made in [B]Visual Basic?[/B] . . please help me find it sir/ma'am. Thank you.

ive been able to make this simple else if statement work, the problem is, i keep getting the same message when i call the showcase. i want the user to enter a name or object after the word 'show', if they dont, i want a mesage to display stating so. …

Hi everyone, I am very new to C++ I have never done any type of programing also. I am really having a hard time learning how to write programs. I am using a book called C++ programming by larry ullman and Andreas Signer. The problem is I am following the …

i have made this code which displays all the values in JTable can any one help me out how to get report of those data.this code is just the module of my library project .Now i want to generate a report for it . [CODE] import java.awt.*; import java.awt.event.*; import …

Is it possible to search for a term within a string and output the result either 1 (True) or 0 (false)? e.g; [CODE]string str = 1234567890 if (str.contains = "456") { MessageBox.Show("True!") } else { MessageBox.Show("False!") }[/CODE] I know I can search for [I]individual[/I] chars but I want to be …

VB.NET 2008 - Get Desktop Icons Text Width & Text Height I am developing an application in VB.NET 2008, in which I try to get Desktop Icons Text Width & Text Height. So far I have obtained all desktop icons positions, but I really can't figure by myself how to …

Unlike web programming, radiobutton needs to be group by a groupbox, panel etc. and that's what i'm confused at. I have two radiobutton that is 'yes' and 'no', what I want is to determine what object to declare in parameters used for the two to get its value. My code …

hello guys...I want to learn the above mentioned topic. Can you suggesst some book or forum to learn this?? thanx

I want to retrieve dates between two dates the user has specified e.g. say the user enters the dates 01/10/2010 amd 05/10/2010 i want to be able to get the dates inbetween the dates entered by the user e.g. 02/10, 03/10.... What possible way is there to do it? Thanks …

I need help with converting standard time to military time through a button. Then being able to use another button to convert back.

So i'm trying to make a module for my program that returns a multidimensional array based on another array in the form of a command-line argument. Here is the module that's keeping me up at night: [CODE]public static double[][][] getDimensions(String [] args) { final int l = args.length; double dimensions …

ok so i have 3 separate classes: Product, Action, and Invoice. Action would be my interface that allows me to add and remove items in my hashmap that is in my Invoice class. my Product class would have the instance variables name, info, id and quantity (correct me if I'm …

Whilst I can find MANY examples of how to split a string based on a certain character within that string, how can I split a string based on the no of chars For example, I have a string that is 20 chars long but I want to create a newline …

Its been a few years since i've coded any network applications so I was hoping for some suggestions on the best approach. I have written two programs which i now need to have them communicate with one another. They are both running on a LAN (over VPN) with static IP …

I'm wanting to automatically upload login details to a router then download the relevant page into a textbox in c sharp. How can this be done?

How to convert digit number into java?

heyy guys wats up !?? i am trying to convert a list(c++) in qt list... i have no idea how i can do that.... the list is a list of employee objects.... (id , name, rate) i want a list of qtlist which containts the employee objects or at least …

Guys I have a textbox, I wana enter 4 digit and when I press enter it should show a label I have add the label but its not working the code I have look more like this [ICODE]if(e.KeyChar == 4) { this.Controls.Add(label); e.Handled = true; }[/ICODE] Any help will be …

I want to find out whether the password is incorrect for the username. I'm using sqldatareader.

Good Day All, I'm relatively new to programming. And I'm taking a C# course at the local University. Is there a place I can go on DaniWeb to get help with coding questions? Thanks, R