Software Development Forum

***Please don't post "spam" or "Thank you" posts in this thread since this is meant to be used as a guide for all beginners and I am sure we would like it to be on topic. I hope you understand this.*** **» Introduction to Java «** To start off, [Java](http://en.wikipedia.org/wiki/Java_(programming_language)) …

EDIT: Please note, as I write this, the post is now 6 years old and might have some outdated information. I'd personally recommend beginners start with "Learn C the hard way" by Zed and this book since I have heard good things about them. Reading the FAQ put together by …

The idea of this thread is to help the beginning Python programmer with hints and helpful code. Please feel free to contribute! If you have any questions start your own thread! The creators of Python are very active, improving the language all the time. Here is a little of the …

## Before You Ask ## - Read our [Forum Rules](http://www.daniweb.com/community/rules). - Engage your brain! We understand that running into a problem can turn off the rational centers of the brain, but please sit back and think for a bit about your problem before running off to find help. All too …

Hello to all programmers out there. Considering the growing request for practice problems by the beginners, we ( Me, Joey, Niek, Aaron..) have decided to start a sticky which will host some common practice problems which would help the beginners in understanding the programming concepts in a better way. (Did …

After you got the basics of Python under your belt, the best way to get a good knowledge of the language and improve your coding skills is to start on a project you are interested in. Maybe an image viewer, a slide show, computer generated random or fractal art, a …

I've opened this thread following rotten69's suggestion for "Java projects for beginners". To get things started I've posted a project in a format that makes sense to me; please feel free to follow that format, or to do it in some completely different style if that seems better. Let's see …

Just for fun, I wrote up a quick tutorial for basic assembly. At present, it's only in the form of a PDF document, but I'll eventually get around to adding it to my website.

[B][U]Before You Ask[/U][/B] [list=1] [*][B]Engage your brain![/B] We understand that running into a problem can turn off the rational centers of the brain, but please sit back and think for a bit about your problem before running off to find help. All too often a little common sense is all …

When you want to remove extraneous characters from an input stream in C++, it's usually because you mixed formatted and unformatted input methods. The formatted method would leave a newline in the stream and the unformatted method would consume it and terminate successfully, but fail completely to do what you …

There has been a noticeable increase in people asking where to start C# recently. So I have been across a couple of forums and pulled together a list of some useful links and resources. # Web Tutorials # [Home and Learn Tutorial](http://www.homeandlearn.co.uk/csharp/csharp.html) [CodeProject Tutorial P1](http://www.codeproject.com/Articles/219869/Object-Oriented-Programming-in-Csharp-NET) [CodeProject Tutorial P2](http://www.codeproject.com/Articles/222295/Object-Oriented-Programming-in-Csharp-NET-Part-2) [CodeProject Tutorial …

Please read through the following suggestions before posting in this forum. Questions in this forum are answered by people who generously volunteer their time. Following these guidelines will increase the chances of getting a quick and accurate answer. 1. Use Search to see if your question has been asked and …

[B]Beginner's Guide to C++0x: The Big Five - Implementing a Resource-holding RAII Class[/B] This tutorial will show how to implement a [I]resource-holding class[/I] showing practical use of [I]C++0x features[/I]. A resource-holding class is any class which holds, with its data members, a resource which could include: [LIST] [*]dynamically allocated memory …

## Why am I Here? ## This question is not as philosophical as it sounds, but it's one worth answering. I am here because I want to help people understand programming and help make us all better programmers. Sometimes I have questions to ask, sometimes I have answers to give. …

[ATTACH=RIGHT]17428[/ATTACH]Almost every programmer knows his name. He's a living legend in computers. His name is Bjarne Stroustrup, and he created the world's most popular programming language, C++. I had a chance to ask him a few questions. The first three of the questions I came up with, and the remainder …

User input/output is a key component in the programs you write, yet most online tutorials just provide a quick-and-dirty method of grabbing data. In other words, it works right up until the point the user does something unexpected. In this tutorial you will learn how to avoid the common mistakes …

With regard to C++ books, I'll just echo the advice here .The following books are recommended; read them in mostly the order listed." Accelerated C++ " Andrew Koenig & Barbara Moo " The C++ Standard Library " Nicolai Josuttis --- a "must have" " Effective C++ ", " More Effective …

Python-wxPython Tutorial This tutorial will take you through the basics of wxPython. ##Introduction: Let's face it. I am a dinosaur. I got my computer science degree in the mid 70s. And it won't be long before **I** am in **my** mid 70s. So why am I trying to learn Python? …

Here is a sample code snippet of logging in a user against a user table in an MSSQL database with password encryption. Scott Knake

Very early on when attempting to learn programming in C, you often do exercises that read in and print out strings and numbers. Now you might assume that C has a simple function that will get user input, and indeed it does, but there are a couple of gotchas that …

This 'sticky' thread is for working examples of Python GUI code. Note that most wxPython examples have their own thread. Please use comments in your code to help the reader. The example code should be usable as a template, so folks get a feel for the toolkit and can use …

A common task in C or C++ is to get a string from somewhere and convert it to an integer. "Use `atoi`" is a common suggestion from the unwashed masses, and on the surface it works like a charm: #include <stdio.h> #include <stdlib.h> long long square(int value) { return value …

For anyone who is having trouble with regular expressions, I suggest you have a look at [this site](https://regexper.com/#%5Cd%7B1%2C3%7D) by Jeff Avallone. It takes a regular expression in the native (cryptic) format and produces a visual display of the same expression. For example, ^[a-z0-9_-]{3,16}$ becomes  and the pattern for …

[B]Beginner's guide to C++0x: Avoiding Memory Problems by Design of Ownership[/B] If you ever read any resources on C++ programming or object-oriented programming, you must have heard some rethorics like "inheritance is for the [I]is a[/I] relation, composition is for the [I]has a[/I] relation". Is that all? Is that the …

For the past several years I have been feeling quite embarrassed about my coding abilities. I've been self studying most nights trying to catch up to my peers but I feel like I have a moving target. I feel like my years of work experience does not reflect my coding …

Several people have asked how to export data to Excel. This code snippet shows how to export the data from a listview in details mode to a new Excel spreadsheet. Take note of the comments in the header to avoid having orphaned Excel.exe tasks eat up your system memory.

This class gives a specified Tkinter widget a tooltip that appears as the mouse is above the widget. You can improve the code by putting in a time delay.

Yesterday i completed my exercises on loop , that's why today i've decided to create a tutorial on loop in c++. # Loop # loop allows us to repeat a statement or a group of statements. When we want to repeat a single statement then it is not necessary to …

I have a php/mysql project and I am currently trying to display a table into an html table through PHP how ever Only the headers are getting returned not the actual table data, here is my query plus html table <?php $result = mysql_query("SELECT * FROM store"); echo"<table border = …

Optimizing Matrix Multiplication One time consuming task is multiplying large matrices. In this post we'll look at ways to improve the speed of this process. We'll be using a square matrix, but with simple modifications the code can be adapted to any type of matrix. The straight forward way to …

[ATTACH=RIGHT]17677[/ATTACH]Here at DaniWeb, we've talked a lot about [URL="http://www.daniweb.com/reviews/review313227.html"]Intel Parallel Studio[/URL]. I recently had the chance to sit down with Intel's James Reinders, and find out more about his take on [URL="http://software.intel.com/en-us/intel-parallel-studio-home/"]Parallel Studio 2011[/URL]. Mr. Reinders (pronounced Rhine-ders) is a senior engineer at Intel and has been with the company …

I notice that there are many, many threads where posters receive few if any comments. When I open these threads, it is usually obvious right away why no one has bothered to reply. The problems with these posts vary from deliberate solicitation for homework solutions to poorly composed questions. I …

Consider the following program and input file: [code] #include <algorithm> #include <cstdlib> #include <ctime> #include <functional> #include <fstream> #include <iostream> #include <iterator> #include <string> #include <vector> #include "natural_compare.h" struct natural_less: std::binary_function<std::string, std::string, bool> { bool operator()(const std::string& a, const std::string& b) { return natural_compare(a, b) < 0; } }; std::vector<std::string> …

When working with TCP client sockets I often find myself frustrated with the lack of event-driven support. I usually end up writing a whole bunch of code to determine disconnects, reconnecting, etc and I figuired it's time to just write my own class for this stuff. I figuired I'd share …

!USING PYTHON 3.1! Hello DaniWeb! Today I'm going to teach you a cool variable trick that I learned. So here's an example: [CODE] a, b, c = input('?x?x?: ').split('x') [/CODE] Now let's input something like: [CODE] >>> a, b, c = input('?x?x?: ').split('x') ?x?x?: 1x2x3 [/CODE] Now, variable 'a' is …

We have had several snippets on the format() function. This one gives a condensed overview of the many options you have.

This snippet implements a pointed set, that is to say an ordinary set of elements with a distinguished element called the basepoint of the set. For example the seven days of the week could be stored in a pointed set, the basepoint being monday because today is monday. It is …

This is my 10,000th post in the DaniWeb Java forum. so I hope I won't get an infraction for being off-topic. I just thought this would be the perfect opportunity to thank all the people who have helped to make this such a valuable and rewarding experience for me. I …

Starting with Python 3.3 you now have access to a high resolution time counter (nanoseconds and better).

A lot of questions in the VB.NET forum are database related. Most of the code that gets posted result in one or more comments like "use parameterized queries to avoid SQL injection attacks". I won't describe the nature of a SQL injection because it is easily looked up via google. …

[B]Search for your answer first![/B] If you're having a problem, chances are good that someone else has had the same problem. Please search the forum for existing answers before starting a new thread. Nothing is more irritating to a long time member than to answer the same question for the …

Hi, Ever had an application that you want to store [B][U]user specific[/U][/B] settings on? e.g. login name or Form background colours, User specifc DSN connections etc. So the next time they run the app the information is there for them? This can be achieved in VB.net with just a few …

I don't visit any other forum but the C and C++, so I don't know if there's a different place where I can make this comment. However, I'm going to go ahead and say. I would like to give a public and loud THANK YOU! to this people: [COLOR=Blue]Mr.WaltP Mr.Ravalon …

I have seen many people struggling with Reading files and writing files in java, also a great problem is how to edit a file too. So in this code snippet I have put all these problems into one small program in hopes to help others. So this code snippet will …

Using PySide's QAbstractTableModel allows you to easily customize a widget like QTableView and make it more generic in its application. Here we use it to present solvent data in tabular form and sort each column content by simply clicking on the header. You can feed it any data as long …

I am a developer who recently started working on my own, and I've come across some projects that I can't handle by myself (mostly in React). What resources would you guys recommend for finding / putting together a team of remote developers to join me on these projects?

Let's say you want to send a short private message to your friend, but don't want grandma to snoop around and find it. One way is to use the Python Image Library (PIL) and hide the message in a picture file's pixels. Just looking at the picture you will barely …