Software Development Forum

Hi recently while trying to solve a core Java algorithm question I got trapped into a problem. Let me explain the puzzle. > There is a series of numbers. where difference between any consecutive > numbers is either a or b. The 1st number of the series is 0. Our …

can anyone help me?..i trying to make a very flexible report according to a search Results...i use vb6 and ms access as database...

This snippet defines a function [icode]mousepos()[/icode] which gets the mouse position on the screen. The package python-xlib is required.

Bugs are, and always have been, a fact of life for the software developer. However, if Microsoft researcher Andrew Begel has his way, they could be a thing of the past. Last month a paper entitled '[Using Psycho-Physiological Measures to Assess Task Difficulty in Software Development](http://research.microsoft.com/apps/pubs/default.aspx?id=209878)' was published which Begel …

Hi! So, I made this code #include<iostream> #include<cstdlib> #include<pthread.h> using namespace std; const int m=6; const int n=5; const int s=5; const int r=8; const int num_thrd=3; class data{ public: int* A; int* B; int* C; int start; }; void* multiply(void* pod) { data* P=(data*)pod; for(int i=P->start;i<m;i+=num_thrd) { for(int j=0;j<r;j++) …

The Fibonacci series of numbers was used by Leonardo of Pisa, a.k.a. Fibonacci (around the year 1200), to describe the growth of a rabbit population. The series has been noted to appear in biological settings, such as the branching patterns of leaves in grasses and flowers. We take a look …

Because of their demand only nature, generators are ideal for finding the combinations of larger sequences. This code applies a Python generator to find the combinations of the sequence. Since permutations are a special case of combinations for all the items in a sequence, I have expanded the result to …

I love barcodes. In my line of work (image processing and document imaging), barcodes play an integral part in high quality automation. As such, I've developed code from the lowest level of encoding and decoding barcodes up to using a number of libraries for working with barcodes. The biggest problem …

I love the idea of dependency injection. I started doing psuedo dependency injection on my own before I knew about DI because I was frustrated programming without it. I then discovered Guice. From a program design point of view, I like it a lot. Everything is much more decoupled and …

I have basic experience in the topic, enough for smaller projects but I would like to improve my knowledge. I would highly appriciate any source about good practices (I have hard time to decide whether a solution belongs in the "good practice" or just in the "good enough to use" …

This is my first post on Daniweb so forgive me if I make any mistakes. Introduction: I recently graduated from Dev Bootcamp. It is an accelerated 9-12 week camp which teaches Ruby and Rails. A traditional computer science degree will teach students algorithms, data structures etc before moving onto higher …

hello everyone, i have a datagridview filled with a dataset and i want to store all the records it has to new table in database. i added a new column,("pos") to a dataset that fills the datagridview through a query so that it ranks records based on a field (total).my …

Here is a piece of C++ code that seems very peculiar. For some strange reason, sorting the data miraculously makes the code almost six times faster: #include <algorithm> #include <ctime> #include <iostream> int main() { // Generate data const unsigned arraySize = 32768; int data[arraySize]; for (unsigned c = 0; …

What is the difference in: Set<Object> linksSet = new LinkedHashSet<Object>(); LinkedHashSet<Object> linksSet = new LinkedHashSet<Object>(); Actually, I want to create a Set, that would hold the objects in the same order, I insert into it. Many thanks for the help, in advance.

Sometimes you want to add a little functionality to an existing class but you don't want to go to the trouble of sub-classing. A technique that you can use is known as **Extending**. For example, I frequently use regular expressions when working with strings. Wouldn't it be nice if strings …

Hello, guys, I encountered a big problem. There is a genereted matrix of buttons: private void Single_Load(object sender, EventArgs e) { //code here for (int i = 0; i < n; i++) { for (int j = 0; j < n; j++) { //a lot of working code here b[i, …

Hi all, We are using TortoiseHg(Mercurial) as a sub version control in our project currently, we are now planning to migrate the sub version control to TFS 2013. 1. is this possible without the loss of any revisions that are exisitng. 2. is this possible without the loss of any …

# What I am using: # I am using java & libgdx to create a game in desktop & android. # Error: # Could not find class 'com.badlogic.gdx.graphics.g2d.freetype.FreeTypeFontGenerator', referenced from method com.aa.GameStates.MainMenu.init so on desktop version, everthing work fine and no errors. Problem is when I run it on android. …

Hey guys! So I'm writing a code that takes 10 numbers from the user which is stored in a array. The user then inputs the problem number (1 or 2) depending on what they want to do to the array. Unfortunately, I'm getting and error on line `array[i].prob1(); `.. Here's …

Program For Standard Form def stnfrm(a,b,c): one = (b/(2.0*a)) two = c-((b**2.0)/(4.0*a)) axis = one/-1.0 x = -b/(2.0*a) y = a*(x**2.0)+(b*x)+c print x if a == 1: print "(x + %f)**2 + (%f)" % (one,two) elif a == -1: print "-(x + %f)**2 + (%d)" % (one,two) else: print "%d(x …

## Disclaimer ## Full disclosure, this is a problem I've recently encountered at work. I couldn't find a reasonable solution and ended up recommending a logistics approach rather than a full code approach to solve it. The code performs a subset of required functionality to give users more options, but …

I did code for challenge that I saw posted for C# by deceptikon: http://www.daniweb.com/software-development/csharp/threads/479304/coding-challenge-string-to-date Here it is. Of course normally the code would be without prints and put in function, but this is enough for now for me. There could also be normalization from '/' separated form not producing ambiguous …

hi frds ... I want to notify my application whenver user open any file. i just want to notify the name of that file, which is opend by user. how can achive this. FileSystemWatcher class is not giving this facilities. I want only notification for opening any file.. please reply …

how do you display image from a access database into a jtable in java

This script computes the formal series expansion of a mathematical function on the command line using the python module swiginac, an interface to the CAS Ginac. Typical invocation in a linux terminal looks like $ serexp.py -n 7 "log(1+x)*(1+x+x**2)**(-1)" 1*x+(-3/2)*x**2+5/6*x**3+5/12*x**4+(-21/20)*x**5+7/15*x**6+Order(x**7) As far as I know, swiginac does not work in …

I am new to programming and picked up the following book by microsoft. I am taking Computer Science in college and would love to know if this is the correct step. I am very interested in how computer language works and wantto get into this a lot more. I've read …

Saw [this](http://www.daniweb.com/software-development/cpp/code/216430/add-a-little-graphics-to-your-console) and decided to make a little spinoff with some physics of mine. Enjoy!

` Hey can u solve my prob. I was running an Applet program(.html file) with java Browser but it showing error = "your security settings have blocked a local application from running" So can u say ... which application is this

A simple program to show you how to create a table of Fahrenheit and Celsius values using a for loop. You may be able to learn from this code.

Hello, So I basically created SQL Server Database and I got it working with displaying my images and drop downlist and everything, however, I want to make it to display an image only if a continent is selected. So if I select Europe, I would like to receive a picture …

Write a program that uses a for statement to sum a sequence of integers. Assume that the first integer read specifies the number of values remaining to be entered. Your program should read only one value per input statement. A typical input sequence might be 5 100 200 300 400 …

Can you guys please help me understand when to use const? For example, if I have the following functions: viod add (int* array) { int total = array[1] + array[2]; } viod subtract (int* array); viod times (int* array); viod divide (int* array); viod printArray(int* array); and I only intend …

Well this is quite a large program so there is a lot of information to sort through, but when I compile it now it comes up with this: /Users/Adam/Adam's Work/Programming/C++/Code/OS2.cpp: In member function ‘virtual int dbase::todo()’: /Users/Adam/Adam's Work/Programming/C++/Code/OS2.cpp:393: error: invalid conversion from ‘const char*’ to ‘int’ /Users/Adam/Adam's Work/Programming/C++/Code/OS2.cpp:394: error: invalid …

Would you please help me in writing a c code to read data from a file and perform 1)numeric sort, 2)alphabetical sort. the file may contain data of any kind.Like it may contain only numbers,only names or a database of employees of a company.(which contains their employee id,name,designation and salary,....in …

Hey Everyone, This is my first post. Recently, I have been working on an instant messenger program in java. I have created the networking part of the client, and I have almost finished the server side. I know the program works and I am allowed to send messages, but now …

hey can any one try out this problem.... 1)Write a program to read a sequence of N integers and print the number that appears the maximum number of times in the sequence. INPUT Input contains two lines. First line in the input indicates N, the number of integers in the …

Hi Friends, Please share your's experience about best supporting programming language for BigData & Hadoop. I'm also doing some research about this topic plz contribute your idea & experience for this topic. Regards, Rupesh

Here is simple text file example for beginners, using try..except for reading old content as it may not yet exist.

Hello Experts Here is my connection string [CODE] string con = "Data source =YS-8462BA359936;Initial Catalog = Schooldata;Integrated Security = True";[/CODE] and my store procedure is [CODE] SqlConnection objCon = new SqlConnection(con); objCon.Open(); SqlCommand cmd = new SqlCommand("Studentinsertadmission", objCon); cmd.Parameters.Add(new SqlParameter("@Studentid",Convert.ToInt32( studentid.Text))); cmd.Parameters.Add(new SqlParameter("@StudentName", firstname.Text)); cmd.Parameters.Add(new SqlParameter("@Image", image.image )); cmd.CommandType = …

Write a function to remove all trailing blanks from the right end of a string. Assume the prototype is void trimRight(char a[]); Write a function to remove all leading blanks from the left end of a string. Assume the prototype is void trimLeft(char a[]); Write a function to add extra …

IS IT POSSIBLE TO PASS AN ARRAY INTO A FUNCTION AND THEN CALCULATE THE PRIME NUMBERS OUT OF THE LIST?

Hello, Looking at the standard streams provided by the stl libraries, it seems as though it is impossible to have 1 stream to use for both standard console IO and file/string IO. However, before I give up I would like to ask, is this possible: generic_stream stream; stream=cin; //now I …

If your Excel spreadsheet is laid out as regular columns and rows with a header row that identifies the columns then this code will allow you to read the data using ADODB the same way you would read records from a database table. To try this code 1. Create a …

Hey! So I am having trouble with this [problem](projecteuler.net/problem=18)! Basically you have to find the path that gives the largest sum down this tree: 75 95 64 17 47 82 18 35 87 10 20 04 82 47 65 19 01 23 75 03 34 88 02 77 73 07 …

So frustrating...I've been Googling all over, posted at various developer forums, but so far I can't find an answer: The goal -- use VB.Net to write a windows forms application that responds to a limited set of voice commands after the user says a keyword, (such as "Wake Up"). I …

hello everyone i have wrote a code but i have problem compiling it ( making it run ) it's running but there are no any text's that i'm typing in Writeline here's the code! using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace ConsoleApplication5 { class Program { …

Hi, I would like to find out how you would go about using your database online, as if you were to do online shopping or online banking. Where all the details of the users can be accessed from the internet and the database doesnt have to be on the particular …

How do you validate checkbox/radiobutton lists? will it be like normal validation?