www.geekpedia.com Tutorials

Sort an Array of Strings in Reverse Order
Learn how to sort an array efficiently using the sort() method and a custom Comparator in Java.Read This Java Tutorial

File Handling in Java
A look at the file handling methods that Java provides, and an introduction to the complex I/O system that comes packaged in java.io.Read This Java Tutorial

Introduction to Arrays in Java
This tutorial covers creating, accessing, initializing, inserting, searching and deleting arrays and their elements in Java. Examples are given for each of these actions to aid the reader in getting a hands-on experience.Read This Java Tutorial

Bubble Sort Algorithm in Java
The bubble sort is notoriously slow, but it's conceptually the simplest of the sorting algorithms and for that reason is a good beginning for our exploration of sorting techniques.Read This Java Tutorial

Selection Sort Algorithm in Java
The selection sort algorithm is slightly better performing than bubble sort, and so we're going to explain how it works and implement it in Java.Read This Java Tutorial

Multithreading Fundamentals in Java
This tutorial covers how to create and manage threads in Java's multithreaded environment. It also explains the part that the Runnable interface plays in having classes run inside threads.Read This Java Tutorial

Quicksort in Java
A quick intro to the Quicksort algorithm in Java, showing an efficient (if not optimal) way to sort.Read This Java Tutorial

Working With Collections In Java - Part 1
A look at the Collections Framework of Java which provides a large set of popular data structures such as stacks, linked lists and dynamic arrays.Read This Java Tutorial

How to Upgrade from MySQL v 3.x to MySQL 4.x
This tutorial will walk you through step by step to upgrade your MySQL database to version 4.x on a Windows Machine. We are going to assume to that you already have MySQL version 3.x or earlier installed on your Windows machine.

Creating and deleting directories
Will show you the basics of creating several directories named 1, 2, 3... or using a prefix like dir1, dir2, dir3. Also shows you how to delete an empty dir.

How to upgrade from PHP 4.x to PHP 5.x on Windows
This tutorial walks you through step by step and shows how you can upgrade from PHP 4.x to PHP 5.x on a Windows machine running IIS 4.x or higher.

Simple way of making a mail script
An example for a very simple way to make a mail script that supports HTML tags in PHP.

Log visitors with PHP & MySQL
In this tutorial you'll see how you can track your website's visitors and getting information such as user-agent or referrer. Also, we'll be using reverse DNS to find out more interesting information about his IP.

How to read XML using PHP DOM
This tutorial will demonstrate the use of DOM extension in PHP to read contents of a XML file.

Foul language filter in PHP
You will learn how to create a simple PHP foul language filter function which uses a file containing foul words to replace them in the string of your choice with asterisks.

Creating friendly URLs with mod_rewrite
This programming tutorial will teach you how to build search engine friendly URLs in PHP, which contain keywords and use HTML extensions. We are going to use the htaccess file and mod_rewrite module running on an Apache server.

How to create an AJAX contact form
This tutorial shows users how to create an AJAX contact form. The form method in this tutorial is set to POST.

Prevent Duplicate Form Submission
Learn how to use PHP sessions to prevent duplicate form submission or re-submission.

Factorial and Greatest Common Divisor
This tutorial demonstrates how to calculate the greatest common divisor and factorial numbers by doing basic math with PHP.

Clipboard cut, copy and paste with JavaScript
This tutorial will show you how to copy text to the clipboard, cut to the clipboard and paste, all these from a browser window.