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| | Hey guys, I just wanted to let everyone know that functions can be used very constructively and there are more to them then most think. Okay this example function is actually pulled from a class of mine so it would probably make more sense in my class but it should …  |
| | Hi, I'm trying to preventing consecutive duplicate pages. For example when I refreshed a page it show a word from each page and when I refresh again it should show a different word from a different page not staying on one page. This is my pages: Page1 = Mozart Page2 … |
 | [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> … |
 | Sentiment analysis, a subfield of Natural Language Processing (NLP), aims to discern and classify the underlying sentiment or emotion expressed in textual data. Whether it is understanding customers' opinions about a product, analyzing social media posts, or gauging public sentiment towards a political event, sentiment analysis plays a vital role … |
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| | 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 …  |
| | ## Contents ## Overview 1. Alternatives to Deprecated mysql_* Functions 2. SQL Injection: What to do with $_POST and $_GET variables 3. How to Insert Tablenames and Fieldnames Properly 4. What to do With Dynamic Values? 5. How to Use Aggregate Functions (COUNT, SUM, MIN etc) 6. How to Paginate …  |
| | !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 … |
 | This tutorial is intended for people who are looking for alternative to PHP template engines like smarty, twig, dwoo, TBS, and others. Not all developers are willing to take the extra efforts needed to learn the template engine syntax. Some are just left behind thinking that PHP is a template …  |
 | We have had several snippets on the format() function. This one gives a condensed overview of the many options you have.  |
 | Hi all, I was just playing around with some ideas about optimizing a core piece of my library: the run-time type identification system (RTTI). What does that have to do with compile-time string concatenation? Well, the whole point of the RTTI is to provide information on the type of objects, … |
| | I know that libraries contain functions for certian fields of work but what is a framework? Is it simply just a collection of libraries? |
 | 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 …  |
| | As I spend time in the Daniweb forums, I see some questions that ultimately come down to the issue of manipulating JavaScript data and a user interface on a website. When you build a GUI that lets your user view, add, edit, and delete data, a common approach is to … |
| | **Clearing up php retrieval of form variables** the basics on how to best submit and retrieve form values in php focusing on checkboxes because they seem to be the most diffucult to understand. When posting form data to another page your naming convention makes all the difference in the world …  |
| | Starting with Python 3.3 you now have access to a high resolution time counter (nanoseconds and better). |
| | Hi, - Why use paging? It's not really cool to print out all 2000 rows you have in a table to the page, so it'd be nice to page them. Special cases? Yeah, if you have 1000 rows.. and you've set the maximum row per page to 20, well.. you're … |
 | 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 …  |
| | [ATTACH=RIGHT]19350[/ATTACH]In the past, the word "JavaScript" usually triggered notions of buttons changing when you float your mouse over them, and images flashing, and silly animations happening in the web browser. Today, however, most programmers recognize that JavaScript is actually much more than that; it's a powerful language that runs in … |
| | 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 … |
 | Just write your "codes" in Python, test it that way, and tweak your syntax in arbitrary directions so that your code suddenly becomes "pseudo" code. Thank you, and stop bothering me with your inane questions.  |
| | Here is simple example of static image to be displayed as logo on the start-up/splash screen. This can be improved by creating animation out of series of images or use of flash file through [URL="http://developer.sonyericsson.com/site/global/newsandevents/latestnews/newsapr08/p_project_capuchin_announcement.jsp"]Project Capuchin[/URL] library. As for location of image file this was placed in new folder called … |
 | If you've gotten the error "Supplied argument is not a valid MySQL resource" you're in luck because so has everyone else that has ever used PHP... ever. The error is caused by a number of things including: Your query is wrong, you failed to connect to the database or you …  |
 | 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 … |
 | I was consistently receiving MySQL "Packets out of order" error messages when attempting to connect to MySQL, mostly on my AJAX pages, but I couldn't attribute it to anything or reproduce it in any way. I did notice, however, that when switching MySQL persistent connections from on to off, the … |
| | 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 …  |
 | Hi, everybody. I write bots and decided to share my experience of writing bots on the [Chat API] platform, maybe it will be interesting to someone We’ll tell you how to write a simple bot on PHP using API WhatsApp. A demo bot will react on commands of ordinary Whatsapp … |
 | # What Are Voronoi Diagrams? # Voronoi Diagrams are an essential visualization to have in your toolbox. The diagram’s structure is a data-driven [tessellation](https://en.wikipedia.org/wiki/Tessellation) of a plane and may be colored by random or to add additional information. ## Learn the Lingo ## The set of points that generate the … |
| | 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 … |
| | Another application of Python module base64, this time to embed midi music data in your program. You also need the module pygame to execute this Python code. Enjoy the music!  |
| | Just a relatively simple calculator using the Tkinter GUI. It has a few nice features such as correcting division by an integer (for older Python versions), error trapping, to and from memory buttons, and an editable display. The editable display allows you to backspace mistakes, and also to enter things …  |
| | This snippet defines a function restart_program() which restarts your python program from within your python program. |
| | **Introduction** Today we are going to go over the very basics of web design and getting it right. I see a lot of web developers who say they are programmers but not designers (although sometimes I wonder even this.) However, this shouldn't mean you can't get the very basics of …  |
 | Making sites is nice and fun but what if you don't want everybody too see something like an admin panel or maybe a special button. Well this tutorial helps you understand how to add a password to a php site in a simple manner. There are two techniques you can … |
| | The bubble sort is slow and I thought it would be interesting to visualize the progress as it sorts an array of integers. |
 | Oh No, not another LockBits demo. Well hopefully this demo may also give you a little in site into actually playing with, and calculating some simple effects as well as understanding the advantages of LockBits as apposed to GetPixel and SetPixel. # A Useful Note. # It is important to … |
 | I have seen several posts through the years with questions about navigation menus. Menus can be built using different approaches. This example is easy to build and simple to integrate with your site. The menu is built only using HTML and CSS so you don't have to have a lot … |
 | File I/O With C++ Fstream **Intro** File handling is as simple as writing in a book, much easier to modify and find. It's so simple people get confused with it :-). Welcome to the world of file handling. We will use the c++ fstream classes to do our file handling. … |
| | Run two calls to a function simultaneously with this threading @background decorator.  |
| | This snippet defines a function `printat()` which adds line and file information to the normal `print()` function output. The intended use is a quick and dirty debugging information for everyday's use. A more complete solution is to use a logging/debugging/tracing framework. |
| | Here's a simple tutorial on dictionaries in Python: Dictionaries: Dictionaries are similar to other compound types except that they can use any immutable type as an index. One way to create a dictionary is to start with the empty dictionary and add items. The empty dictionary is denoted {}: [CODE]end2sp … |
| | Hello All. Been playing around with some linked dropdowns. It seems to be a recurring theme here on DW, so I thought I'd offer this up as a possible solution or for discussion, to see how it could be improved. The premise for this set of linked dropdowns is that … |
| | # Tutorial On Operators# *Operators are the signs to the tell the compiler to perform specific task*. The Operators fall into following categories :- Arithmatic Operator Relational Operator Logical Operator Bitwise Operator Miscellaneous Operator(i added Assignment Operators in this categeory) **Arithmatic operators:-** There are following arithmetic operators:- + Add [6+2=8] … |
| | I have 3 tables --Ticket_Lines (parent), Labour_Items (child), Part_Items (child). Table Ticket_Lines has 2 primary keys (ticket_number & ticket_line_number) I know that you cant have two seperate primary keys in one table so would this mean that ticket_number and ticket_line_number is a composite primary key? if that is correct, is …  |
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