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  Seven Java projects that changed the world

O\'Reilly is celebrating the release of Java 7, and our inaugural OSCON Java conference: July 25-27 in Portland, Ore. Java\'s open source ecosystem is strong and healthy, one of the primary reasons for our creation of OSCON Java. Over the last decade, several projects have traveled beyond mere adoption and had effects dominating the Java world, into software development in general, and some even further into the daily lives of users. JUnit Ported to Java by Kent Beck and Erich Gamma from Be...

   Java,Projects,Prominent,Eclipse,Sue     2011-07-26 02:50:42

  Use CSS calc to align an element vertically

calc function is a function introduced in CSS3, it can be used to calculate length values. There are a few good features which make it suitable for aligning an element vertically. One good part is that the operands can have different units like percentage, px, rem etc. This makes it very flexible when calculating the length value. One example: .rect{ margin-top:20px; height:50px; background:green; width:calc(100%-20px); } Here the left operand uses percentage while the right one ...

   CSS3,CALC,VERTICAL ALIGN     2019-08-23 20:30:23

  How Query Optimizer Works in RDBMS

In a previous post, we discussed how the various relational operators are implemented in relational database systems. If you have read that post, you probably still remember that there are a few alternative implementations for every operator. Thus, how should RDBMS determine which algorithm (or implementation) to use? Obviously, to optimize the performance for any query, RDBMS has to select the correct the algorithm based on the query. It would not be desirable to always use the same algori...

   DATABASE,DATABASE DESIGN,DATABASE OPTIMIZATION     2019-04-20 07:26:32

  One interesting story about Chinese software development

I have once seen an interesting complaint written by one foreigner about Beijing South Railway Station (China) on foursquare. It says: "There is simply no way to buy a ticket at the machine unless you have a Chinese ID. What the hell they have English interface for then?" Apparently,the foreigner cannot buy ticket because he doesn’t have Chinese ID but there still presents an English interface for foreigners on the vending machine. Because of my profession, I find this awkward situation w...

   Software design,User experience,Importance     2012-03-26 14:42:50

  Write Your Own R Packages

Introduction A set of user-defined functions (UDF) or utility functions are helpful to simplify our code and avoid repeating the same typing for daily analysis work. Previously, I saved all my R functions to a single R file. Whenever I want to use them, I can simply source the R file to import all functions. This is a simple but not perfect approach, especially when I want to check the documentation of certain functions. It was quite annoying that you can’t just type ?func&n...

   DATA SCIENCE,R PROGRAMMING,DATA ENGINEERING     2019-10-19 07:20:52

  UC browser won Readers' Choice Award

China's leading mobile Internet software technology and application service provider UC excellent, its flagship product, UC browser, following the 2011 recommended by the world's leading classified information site About.com named the Readers' Choice Award in best mobile browser category, is once again awarded by About.com as Reader's Choice Award in Best Android Browser category. UC browser comes out on top in the About.com selection in two consecutive years.About.com, a part of The New York T...

   UC,About.com,Readers' Choice Aeard,2012     2012-04-03 08:08:03

  What has Google done on improving programming languages

Google is now becoming the most innovative IT company in the world. Every now and then they would deliver one revolutionary product to us such as Google Glass, Google Fiber, Automatic Mobile Cars etc. All these great products are backed up by the powerful software system built into. Google has used many programming languages to develop these software and they have put much resource in improving the programming languages they use and we use today. What has Google done in improving programming lan...

   Google,Programming     2014-02-21 09:36:34

  Bill Gates to return as Microsoft's white knight?

Summary: Could and should Bill Gates return to day-to-day responsibilities at Microsoft? Fortune is reporting there’s a rumor to that effect. Fortune reported on December 8 that there’s talk Microsoft Chairman Bill Gates might be mulling a comeback, largely to help boost Microsoft’s stagnant stock price and employee morale. I have to say I am very, very, very skeptical on this one. First, it seems this is a single-sourced report....

   Microsoft,Change,Bill Gates,Return,White Knight     2011-12-09 07:39:39

  IDEs for Java programmers

IDEs are great helpers to programmers. They can help programmers write less error-prone programs with less time. They have become an inevitable part of many programmers. As a Java developer, you may be familiar with Eclipse already. But do you know other IDEs for Java programmers? We will give an overview of different IDEs for Java programmers. These IDEs are Eclipse, Intellij IDEA, NetBean and BlueJ. Eclipse Eclipse is the most widely used IDE for Java programmers. It's an open source IDE whic...

   Java IDE,BlueJ,NetBeans,Eclipse     2014-08-21 06:15:54

  JavaScript to open link in new window without being popup blocked

To ensure security and reduce spamming, modern browsers have implemented very strict rules on when a new window can be opened in a web page. Currently browsers restrict that any new web page to be opened in a new window must be initiated with an user action. The action is usually an user click event. Otherwise, a popup blocker would show on the browser address bar which indicates that something is blocked. To workaround this issue, normally you should implement the window open logic in a click e...

   JAVASCRIPT,IFRAME,NEW WINDOW,OPEN LINK     2018-09-22 04:29:30

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