djVoo: Look It Up, Take Your Notes, and Define Your Own  

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844 you-defined items, 351,046 terms in local dictionaries, 46,455 US cities and townships in city data, and more...
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Auto Economy Business Eat Live Career Health Outdoors Photography Computer Mobile Statistics Language History Money Personal Misc ...[more]
Computer
Hardware XML SSH Database Operating system System Management Programming Networking Web Service LDAP Domain Streaming Media UI Tools Testing Misc Drupal DotProjec...[more]
A SAS Tutorial for Programmers
Who should read this tutorial? This tutorial is for people with considerable experience in at least one programming language, be it C, C++, Java, Perl, Python, etc. What is SAS? SAS is short for Statistical Analysis System. It was designed by . It's been around since 19...[more]
A Not-So-Short SAS Tutorial
What is SAS SAS is short for statistical analysis system. SAS is widely used in statistics research and especially industry. For a brief introduction of the SAS software system, refer to A SAS Tutorial for Programmers. In that short tutorial, you'll see that a SAS prog...[more]
A Piano Tutorial for Scientists
Who should read this tutorial? This is a piano tutorial for people with science and engineering background. Music jargon has been tranlated into engineering or science terms, and the tutorial is organized to fit a scientist's way of thinking. How is this tutorial organized? &...[more]
Caesar
Caesar was born between 102 or 100 BC. His family has noble roots but is neither rich or influencial when he was born. In 85 BC, his father died when he was about 15. In about 79 BC, at the age of 22, he was a soldier and fought a few battles and received honors for handling difficult s...[more]
Hannibal
The Life of Hannibal Hannibal (247 BC- Bithynia 182 BCE) was a Carthaginian general, and a military genius. Today he was known for his talented efforts in the second Punic war, the decisive war between the Carthage and the never-before-defeated Roman Republic from...[more]
Posters: The Echo of Times
Posters: The Echo of Times 1930s-1940s: The Second Sino-Japanese War ...[more]
Most Frequently
java
Introduction Java is an object-oriented programming (OOP) language. Similar to C++, Java was originated from the C programming language and it has C-style grammar. Different from C++, Java is a strict object-oriented programming language (not 100% though), while C++ is compatib...[more]
phrase
jinx In a noun form, a jinx is a minor curse or some thing similar of a superstitious form that causes a person to have minor misfortunes or bad luck. When used as a verb, jinx means give something bad luck -- You stock account is at all-time high now -- Don't say that, you'll ...[more]
struts
Introduction Struts is an open source framework for building Java-based web applications. It is maintained by the Apache Software Foundation. \par The Structs framework features the MVC architecture where "Model" (data) and "View" (data presentation) are completely separated by a "Co...[more]
outdoors
Outdoor Survival Skills Hiking Biking Camping Backpacking Sports Travel Volunteer Gardening GPS Trail Maps Links ...[more]
persistence
Introduction Persistent is the opposite of transient. In a Java application, there are classes that come and go: you create them, use them, and discard them. Some other classes such as database related classes, will not go away after you quit the application, they (or their data)...[more]
object-oriented programming
Introduction In traditional procedural programming, a program is composed of data and a bunch of procedures, each of which carries out a subtask for data-processing. Object-oriented programming or OOP, however, breaks down this architecture and intertwined relatively-independent piec...[more]
laptop
This is a laptop (or notebook) buying guide. Configurations When eveluating laptops, basically you need to consider the following aspects: Battery The more cells, the better. For example, a 6-cell battery might last 3 hours at regular workload(browing, etc), and a 12-ce...[more]
log4j
Logging and Programming Many programmers use logging or print statement to debug programs. First, it works. Second, it's handy. And third, debuggers may not be available. The flip side is: it may pollute the code if not properly handled, and also there will be a performance dra...[more]
jboss
A famous Java application server A Hello World example with Jboss and Eclipse Install and Install In eclipse create a new project by selecting new->Project->Web project->dynamic web project, say the project name is demo. The project should have a demo\...[more]
postgresql
PostgreSQL, or Postgres, is an open-source database system licensed under BSD style license. History This all goes back to last century when people at the University of California at Berkeley developed a database system called Ingres (1977-1985). Later, Ingres branched into a few dif...[more]
screen master faq
Please note that this version of the FAQ may be obsolete, for the latest version, please go to General What is screenmaster? Screenmaster is a tool for capturing snapshots and video information from your display. How much is it? Screenmaster is 100%...[more]
Recent Updates
xcode
Related iPhone, Objective-C A HelloWorld example Here is for iPhone SDK 2.2. Here are the major steps toward your Hello World example: Start Xcode, create a new "Window-Based Application" named "HelloWorld" Download a picture from [www.iPhone-wallpapers.org], right-click "HelloWorld" at the top of your "Group&files" panel, and Add existing to add the background picture you just downloaded Double click Resources->MainWindows.xib, this b...[more]
iPhone
How to unlock IPhone How do I use tethering with an IPhone? With an non-jailbroken iPhone 3G(s), follow these steps Ran "defaults write com.apple.iTunes carrier-testing -bool TRUE" Download , or Double click the img file in your Mac file bro...[more]
perforce
I got this error: No files, what's wrong? Check your environment variable to make sure that you have set P4CONFIG to value .p4conf. How do I delete pending changelist? p4 revert -c //... How do I branch a file? Use p4 integrate, this way you get to keep all the histo...[more]
Quotes
送别 - 李叔同 1914 长亭外,古道边,芳草碧连天 晚风扶柳笛声残,夕阳山外山 天之涯,地之角,知交半零落 一壶浊酒尽余欢,今宵别梦寒 匈奴未灭,何以家为 史记记载,元狩四年(公...[more]
Mexico
With about 100 million people living on 200 million square kilometers, Mexico is the 14th largest and 11th most populous country in the world. Mexico City Constitution Square Or Plaza de la Constitution in spanish, has Mexican National Palace, Metropolitan Cathedral&#...[more]
摄影
摄影 Camera 什么样子的照片是好的照片? 摄影和其他艺术形式一样,都试图通过不同的方式将场景映射到受体的大脑中,并试图引起共鸣。好的作品就是那些能够成功的引起受体共鸣的作品。 比如这首元代...[more]
DjVoo
Introduction DjVoo is a simple yet hopefully useful dictionary and Wiki system. DjVoo combines the power of a Wiki system and dictionaries. First, it is a dictionary where you can lookup words. At the same time, like a classic wiki system, you can add your own definitions an...[more]
Windows
Basic vs Dynamic Disks A basic disk is the traditional disk you've been having since win98 times: on each disk, you may have up to four primary partitions, or three primary partition and one extended partiion with unlimited logical drives. All the tricks are done in the MBR (ma...[more]
Camera
What is SLR Single Lens Reflex, allowing photographer to see exactly what's going to be captured on the film or CMOS sensor. What is ISO? ISO or ISO speed in photography is about film speed. The larger the ISO number, the more sensitive the film or sensor is, the less exposure is...[more]
index
Auto Economy Business Eat Live Career Health Outdoors Photography Computer Mobile Statistics Language History Money Personal Misc ...[more]