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Remove the mystery from computer programming by researching eHow’s expert collection of programmer How Tos. Whether looking for a basic overview of various computer programming languages or attempting to bulk up a software engineering resume by improving your Java skills, eHow can help. Neck deep in damaged binary code and need a helpful shortcut? eHow can show you how to switch the values of two variables without using a temporary variable.

Categories in Computer Programming

Articles in Computer Programming

How to Add Items to a Listbox in VB.net

By Mike

1 comments

A listbox is very common control that you see in many applications. It gives the user a great view of a list of items. Here is how you add items to a listbox in VB.net... more »

How to Add the "Post to Facebook" Button to Your Website

By Amy S Trosen

2 comments

It's become the unwritten law of the web that bloggers need readers. If you have a website, and you want to keep your readers coming back for more, you need to make it easy for them to share what they glean from your site. Adding a link post ... more »

How to Create a No-Follow Tag in HTML

By *Janet Ford

1 comments

Getting traffic from the search engines is great... usually! There are times when you don't want just anybody finding your website. Particularly useful for pages containing download links you wish to protect from non-paying visitors... more »

How to Disable/Enable Command Buttons in VB.net on the KeyUp Routine

By Mike

2 comments

A good way to make sure users do not click buttons on a form until they actually enter something is to keep it disabled until text is entered. Here are the steps to do just that... more »

How to Encourage Good Coding Practices from Software Developers

By cadam

1 comments

As a technical lead I have always tried to encourage my software development teams to maintain good coding practices. This has not always been easy and here are some of the lessons that I have learned to help out... more »

How to Hand Trace Through Software Code

By eHow Computers Editor

0 comments

One valuable way to test your software code is to trace it by hand, or desk check it. Desk checking can help you spot errors in your algorithm or approach that may not be obvious when you simply run the program on a computer. To trace code by ... more »

How to Make a JAVA Applet

By eHow Computers Editor

0 comments

A Java applet is a small program written in Java source code. Java is an object-oriented programming language suited to client-server architectures, or the Web. An applet is a program with a limited function. A Java applet can be positioned in a ... more »

How to MySQL Select using date_sub,curdate and interval

By SpeaK

0 comments

MySQL Select using date_sub,curdate and interval.. more »

How to Restore a MySQL Database

By BlueOx

0 comments

There are a number of reasons why you may need to restore your MySQL database. Perhaps you performed an upgrade on the scripts that power your site, only to discover that the upgrade corrupted your MySQL database. Perhaps you are moving your site ... more »

How to Return the Maximum Number in VB.net

By Mike

1 comments

VB.net has a nice built in function that allows you to pass in two numbers and return the greater of the two. Here is how it works... more »

How to Select the Average Value of Data in a SQL Statement

By Mike

1 comments

SQL offers a great way to get the average value of your data in a single statement. In my example I am going to use MS Access's Northwind Database... more »

How to Understand Open Source

By Jonathan West

1 comments

People often hear of others using open source software or code, and many are still confused as to what exactly it means and entails. Here is a quick description to clarify things for you!.. more »

How to Understand the Basics of Computer Data Files

By HS Schulte

4 comments

This article explains the basics of computer data files. It explains the components of a data file: records, fields and key fields in simple English... more »

How to Use Functions in Python

By Amanda Morin Morin

4 comments

The function is the most fundamental way of abstracting a task. Any code that is repeated more than once in your program is a candidate for function use in Python. For example, if your program deals with temperatures and you have to often ... more »

How to Use Fundamental Data Types in Perl

By eHow Computers Editor

0 comments

The PERL programming language uses a few fundamental data types. This range of data types includes variables and other designations for routines and file maps. The data types in PERL are identified by a "sigil," one ASCII character at the ... more »

How to Use mysqlcheck to Check and repair tables

By SpeaK

0 comments

mysqlcheck is the command line program to check and repair mysql tables. It performs the same functions as the check table and repair table query statements... more »

How to Use the Memcmp Function in C++

By eHow Computers Editor

0 comments

The C++ memcmp function compares a specified number of bytes of two blocks of memory. It returns 0 if they all match and a nonzero value to indicate which value is greater. The following steps will help you use memcmp... more »

How to Use Threading and Messages in Visual C++

By eHow Computers Editor

0 comments

Processes that run in the background, like those displayed by the Event Viewer application in Windows, can be implemented in Visual C++ by the MFC Working Thread. In this tutorial the OnOK command function of a Dialog is used to call ... more »

How to Wrap Text with Zend_Pdf

By prouty

2 comments

This article will show you how to wrap text that is sent to an auto-generated PDF file created by Zend_Pdf when developing in PHP using the Zend Framework... more »

How to , What to, know before buying a computer

By Vasco

1 comments

What to know before buying a computer You should have basic knowledge of PCs components.. more »

How to add a "Bookmark Us" Link to Your Website or Blog using Javascript

By gottalovelattes

5 comments

Want to invite your visitors to bookmark your webpage or blog? Want them to be able to add your site to their favorites with minimal effort? Do you know that many people do not know how to add sites to their favorites? Even if they do, a web ... more »

How to become a Web Designer

By MarlaineMarie

6 comments

Ever wonder how to get started making your own website? It seems everyone has a website, but few can go beyond the pre-set templates. Here's how to do it yourself and RIGHT!.. more »

How to exit a Flash SWF and HTM file together

By Beveronius

1 comments

Do you have an HTM file that calls a SWF that just won't close? If you are like me, then there is a good chance that you have created a CBT (Computer Based Training) course in Flash that has an exit button. However, when you publish the SWF and ... more »

How to Learn HTML For Beginners: Part 1

By MarlaineMarie

4 comments

This is a basic tutorial for beginners, detailing basic HTML. A lot of beginners jump into learning Dreamweaver or some other clunky WYSIWYG (What You See Is What You Get) editor, relying on the design aspect without even bothering to learn code. ... more »

How to make a GUI (Graphical User Interface) in JAVA

By roosevelt

1 comments

In this tutorial you will be given the knowledge of GUI, how to make frames, panels, buttons and how to display dialog boxes. As usual, the article will take the naughty approach to teach the good stuff... more »