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http://imgur.com/gallery/dYgFh has a gallery of some visualizations of classic sorting. For your enjoyment. And with sound too! https://www.youtube.com/watch?v=kPRA0W1kECg This post is strictly for programming's secret pleasures. | |
A little fun with Python's turtle module drawing a number of random stars in the dark sky. | |
I typically ask my questions over on StackOverflow, however this one I know would immediately get voted down as requiring someone to give their opinion, heaven forbid! I'm hoping the folks over here are a little more forgiving in this area. I am converting a really old ColdFusion app over … | |
I found myself starting to answer a question that I have answered many times , so I thought why not making a code snippet and just reference this. This is a short code snippet only to demonstrate how this thing work (with apache and rewrite engine on) , in real … | |
A list of class objects mimics a C array of structures. The snippet explores how to setup the list, and sort the list according to a selected attribute. Then we use a format string to display the sorted list. Take a look at how to search the list. All in … | |
Will work on latest:Chrome Safari Firefox Opera and all versions of IE. *(client notifications are for demonstration purposes only, and subject to designer decisions and modifications ) Can be used for size and mime-type restrictions. When mime-type is not an issue, accepting any kind of image format can be done … | |
# MySQL Stored Routines: Another Useful Scenario # [In a past guide](http://blog.bobbyhensley.com/sql-procedures-functions-authentication-example/) I discussed MySQL stored routines within MySQL. Now I’m back with another guide on MySQL stored routines. And this time it’s a more concrete case; one that you may run into yourself in the future (or maybe you … | |
Well we all have seen the common questions on creating squares and hollow squares out of asterisks in C++, but how about creating a program that prints out a circle in asterisks? Obviously this would look like an oval due to line adjustment, but it would be quite interesting to … | |
Hi all, Can you please tell me if there is a bash command in UNIX that is similar in functionality to XCOPY in Windows? XCOPY can copy who directory trees from a source folder to a destination folder, but from what I saw about the cp command in bash, it … | |
Hello! I always wanted programming my own games, but i dont know where to start. At school im coding in C, and i read a lot that some people suggest C++, but i dont know. Your ideas? I would like to make a 2d game , which will be also … | |
By this script you can remotely login into facebook account with your password and username and fetch/send data. | |
Following is a matrix multiplication code written in MPI (Message Passing Interface) which could be run on CPU cluster for parallel processing. This has been successfully tested with two square matrices, each of the size 1500*1500. | |
Now, before you say it already exists (because it does) I found that those didn't really have the generic ability to find any control on a form, regardless of containers. So, here you have a piece of code which will find any control on a form and will also search … | |
Hi everyone this is my first code snippet so be gentle.. I have written a basic client/server chat program that uses multithreading for listening and sending. I welcome any improvements or discussion... Thanks James | |
In response to [this thread](https://www.daniweb.com/programming/web-development/threads/499762/jquery-for-dropdown-textbox) I've decided to paste the linked example as a code snippet (updated to html5/jQuery2). ![]() | |
This code snippet demonstrates how to use ADO.NET to read the contents of a Microsoft Excel Worksheet. This snippet also demonstrates the use of the [GetSchema](https://msdn.microsoft.com/en-us/library/ms135981%28v=vs.110%29.aspx?f=255&MSPPError=-2147217396) method to determine what worksheets are available within an Excel workbook allowing the end user the ability to select a specific worksheet in order … | |
This is easy! But I admit, it can be rather confusing at first if you also take the old style MenuItem stuff into account. I hope my code is as clear as possible. If not please let me know. To test it, just start a forms application and paste it … | |
Although objects collections have a place in the PHP world many years now , their use is now flourishing because more and more PHP programmers turn to OOP. This tutorial is a sequel of https://www.daniweb.com/programming/web-development/tutorials/500118/a-simple-data-layer-for-oop-php-applications (we will refer to it as “previous tutorial”) and https://www.daniweb.com/programming/web-development/tutorials/500118/a-simple-data-layer-for-oop-php-applications , in order to understand … | |
The Swift computer language is the brainchild of a number of Apple associates. In my humble opinion it shows some nice features, but also some warts. Part 1 (constants, variables, strings, tuples, arrays) explores a number of the features to give you a taste of the language. I hope I … | |
since the forum has been quiet for a while I thought to post this program , it might start new discussions . the idea is not new but it should be interesting to starters . as usual any comments is appreciated | |
This is about “https://www.daniweb.com/web-development/php/tutorials/499320/common-issues-with-mysql-and-php” i created a new thread because that is a great tutorial and I believe that comments underneath it would troubled the reader. Hello Diafol , I believe that this tutorial should be linked in the “read first” section , but to be honest I don't believe … ![]() | |
Part 2 of exploring/tasting the Swift language takes a look at dictionaries; process flow controls like loops, if/else and switch/case; functions and sorting. I hope I can follow this up with part 3, a closer look at class operations. | |
This is a test to get the Python snippets going! For those of you who are scared of snakes, the language is named after the TV program, not the snake. Python is an interpreted language, but programs to compile/combine the code to an exe file are available (Py2Exe). The latest … | |
Write a C program to Remove even numbers and fill it with zeros. Note: You can use only one loop for your logic. Two variables apart from the array. Input array 1,2,3,4,5,6 Output 1,3,5,0,0,0 | |
Hello all, I have started an new project which needs a Fibonacci sequence (all Fibonacci numbers below 4,000,000) Here is my code for calculating Fibonacci numbers: numbers_list = [] number1 = 1 number2 = 2 total = 0 while (total < 4000000): total = number1 + number2 number1 = number2 … | |
Earlier this month, security outfit FireEye’s 'FireEye as a Service' researchers out in Singapore [discovered and reported](https://www.fireeye.com/blog/threat-research/2015/06/operation-clandestine-wolf-adobe-flash-zero-day.html) on a phishing campaign that was found to be exploiting a zero-day in Adobe Flash Player vulnerability (CVE-2015-3113). That campaign has been well and truly active for a while now, with attacking emails … ![]() | |
A little experiment with custom sorting the result of a word frequency count using Google's Go language. | |
**Modifications Required for VB6 Applications to Work on Vista/7** Thanks to Hassan Basri in VBForums **Application Changes** - Remove SendKeys calls and replace them with API code. - Use the HKEY_CURRENT_USER in the registry for the settings of your application. - Do not write to HKEY_LOCAL_MACHINE. - If you are … | |
I have joined the thousands who have done it before, and have compared a number of sorting routines. The sorting is done on the same random-integer arrays. No surprises, quicksort wins this simple comparison hands down. There are clever combinations of sorting routines that are faster, like the snippet by … | |
Just a couple of number tricks to check Go's mathematical abilities. If you have more, let's show them here. | |
A few hundred years ago the glorious leader of a big country wanted to reward the creator of the chess game. The creator of the game simply wanted one grain of rice put on the first square of the chessboard, two grains on the second, then doubling it for every … | |
The story has it that a few hundred years ago the ruler of a big country wanted to reward the creator of the chess game. The creator of the game simply wanted one grain of rice put on the first square of the chessboard, two grains on the second, then … | |
I needed a random color selector. I found one [here](http://peepspower.com/python-script-to-generate-random-css-colors). I rewrote it to make it more general purpose. "f_GenRandomColor" is the picker. The output is in list form, which should make it suitable for most general applications. "f_HTMLRandomColorChart" is just a way to create an HTML table to test … | |
Use Google's modern Go language (aka. golang) to convert a denary number (base 10) to a roman numeral. Just a good exercise to explore Go's map, slice, sort and for loop features. Note that in Go the **:=** is shorthand for assigning a type (by inference) and a value to … | |
Let's assume you would have to design a 500 ml (about 1.1 pint) food/beverage container like a can and use the least amount of material. Here is a Python program that explains the steps to achieve this. | |
A while back, I was working on some web pages that required a tabbed menu at the top of the content. In addition, the requirement was that the page should not perform a post back when the user clicked on the individual tabs. It was very important to have a … | |
Hi all. This is somewhat the equivalent of .NET String.Format(String, Args); Usages: 'Hello {0}'.format('DaniWeb!'); String.format('{0} {1} {2}', 'Hi', 'Again', 'Good Fella'); String.format('Hello {prefix} {name}', { prefix: 'Sr.', name: 'HeyHeyHey'}); I know there's lots of String.formats out there(some simpler and some more complex), but this is the one i've been using … | |
So I was recently working on a string program where the strings were easily megabytes long, and I ran into problems with there being out of memory exceptions etc. So I said to myself, this would be a perfect problem which lazy execution solves. Here is a split function that … | |
This shows you how to create a flashcard like quiz game using a Python dictionary. It's up to you to explore the approach and make this a more meaningful game. | |
Hello , today I was developing a short url system and I created this class to help me encode / decode integer (id) to small string. That way for example “Ac” means 3674 . Because I believe that it may be helpful to others too I share it here. Notice … ![]() | |
Addressing last weeks Securi-Tay conference hosted by the Abertay Ethical Hacking Society in Scotland, Stephen Tomkinson from the NCC Group detailed how Blu-ray players can do more than play videos; they can open up a new attack surface for the hacker. Tomkinson demonstrated a new tool that had been released … | |
The following snippet is a simple PHP Pagination Script which I wrote. As far as I know it works fine. It is meant to be used within a class, and I have wrapped in in a class in order to demonstrate it's usage. The example given below will return something … | |
A simple code example on how to play wave sound files with the Python module PyGame. | |
Using http://download.geonames.org/export/zip/ you can get postal information for most countries in the world. The raw data string can be transformed into a Python list of lists that can be searched for zip codes, locations, longitude and latitude coordinates. | |
Just a small mildly optimized function to check if an integer is a prime number. For very large numbers use the Miller-Rabin primality test. There have been questions why I used `not n & 1` to check for even integer n. The more tradional` n % 2 == 0` is … | |
I just thought I'd share this because it took me a bit of time to figure out tonight. When members post content with MS Word quotes, etc., and they look funky on our UTF-8 websites, it's because those characters need to be converted to UTF-8. This bit of code worked … | |
If you draw a series of close spaced shapes your eyes get fooled to see Moire patterns. Here is one example of this. | |
To refresh my mind I did some exercises about complex numbers. I was constantly drawing axes and arrows. So I decided to print out some worksheets with a program to make my life a bit easier, and because it is always fun to design a little program to do that … | |
hi guys , first of all merry Christmas and happy new year since there have been many discussions about favorite idle for python , al sweigart is trying to improve python's own idle and everyone is invited to help out and since this is the best python forum I thought … | |
This is a program I wrote for my x86 assembly class which is basically the Spade Invaders game in all its glory. It uses Irvine32.inc which came with the textbook. |
The End.