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  Pandora's killer--iTunes Radio

As expected, this year's WWDC may make many people happy, but also doomed to make many start-up companies sleepless. iTunes Radio is such a product creates insomnia. In WWDC, iTunes Radio was released on schedule and it becomes Apple's new music service. iTunes Radio is a music stream service which can learn your taste, it can recommend your music based on what you heard and you're listening to. From the conference we can see this new service can access the entire iTunes catalog, i.e, there wil...

   iTunes Radio,iRadio,Apple     2013-06-10 23:19:23

  Yahoo to change name to Altaba and becomes Alibaba's father

Yahoo, one of the most successful Internet giants in later 1990s, is now becoming a company living with selling assets(offices, domain names) and holding the stocks from Alibaba. Its core business which it was proud of has been sold to Verison with $4.8 billion as disclosed in some document submitted to SEC. Now it's starting the process of changing its name to Altaba. After the acquisition, the current Yahoo CEO Marissa Mayer will resign from the board. But the company will still keep some val...

   YAHOO,FATHER,ALIBABA,ALTABA,CHINA,NEWS     2017-01-15 04:07:24

  A tutorial on Github Actions

Github Actions is a CI/CD service created by Github. It aims to make it easy to automate all software workflows, now with world-class CI/CD. Build, test, and deploy code right from GitHub. It was launched in October 2018 and was officially available to all users in November 2019. This post will give an introduction of Github Actions and explain how it works. What is Github Actions Normally Continuous Integration includes some steps, fetching code, running test, sshing into remote server in...

   GITHUB,GITHUB ACTIONS,CI,CD     2019-12-23 05:33:39

  Google CEO Sundar Pichai : Google is open to return to China

At the Code Conference on Wednesday, Google CEO Sundar Pichai expressed his thought on Google's position in China. He expressed the openness of Google to return to China. "Google is in China....But Google Search is not there in China...But personally for me, I care about serving users globally in every corner. I always thought Google is for everyone, that applies to China, too. So wherever possible, we want to be in China to serve Chinese users....If we do it in a right and thoug...

   GOOGLE,CHINA,SUNDAR PICHAI,CODE CONFERENCE     2016-06-02 01:09:21

  Why accessing Java HashMap may cause infinite loop in concurrent environment

HashMap in Java is frequently used to handle key/value pairs. But it is not a good candidate to be used in concurrent environment where ConcurrentHashMap should be used instead. If used in concurrent environment, it may cause lots of unexpected behavior even including make the program getting into an infinite loop situation. To understand how this can happen, let's first discuss how HaspMap works internally. In this post we will use implementation of HashMap before Java 8 as example, Java 8 prov...

   JAVA,HASHMAP,INFINITE LOOP     2020-03-29 01:47:00

  Java SynchronizedList and Iterator

While reading some material about concurrency, I come up with some writing about using SynchronizedList wrap about normal List to enable synchronization.   But one interesting thing is http://docs.oracle.com/javase/7/docs/api/java/util/Collections.html#synchronizedList%28java.util.List%29   It says     It is imperative that the user manually synchronize on the returned list when iterating over it:     1   List list = Collections.synchronizedList(new A...

       2015-12-03 03:04:08

  Install Windows 7 with USB 3.0 ports only

Windows 7 is another great operating system released by Microsoft after Windows XP. Since Microsoft has announced that it suspended the support of Windows XP starting from April 8, 2014. Many users have been forced to move to Windows 7. Unfortunately, if you are using a bootable USB flash drive to install Windows 7 and your computer doesn't have USB 2.0 port but only USB 3.0 port, you will encounter missing driver issue while installing it. This post will show you how to workaround this issue. B...

   Windows 7, USB 3.0 driver, Bootable USB drive, Installation     2014-12-29 20:56:39

  Samsung loses $12.3 billion in one day

Following the court decision last Friday on Samsung's infringement of Apple's patents, Apple did not stop, they immediately submitted an application to the court to ban some Samsung smartphones, including 8 types of Samsung smartphones sold in United States. Apple listed in detail in the document what patents these phones infringed. These 8 smartphones are: Galaxy S 4G Galaxy S2 (AT&T) Galaxy S2 (Skyrocket) Galaxy S2 (T-Mobile) Galaxy S2 Epic 4G Galaxy S Showcase Droid Charge Galaxy Prevail...

   Samsung,Apple,Patent,Lose     2012-08-27 21:37:24

  World of Father of Ruby

"I am Yukihiro Matsumoto, I believe keyboard can change the world" is a video about Father of Ruby -- Yukihiro Matsumoto. This video introduces us a father, a husband rather than a programmer. Yukihiro Matsumoto shared his understanding about programming in this video. Computer is not quite smart, it cannot understand human languages, so if we want computers to complete jobs we assign to them, then we need something both human beings and computers can understand. That's why we have program...

   Yukihiro Matsumoto     2013-08-30 22:45:26

  What is Hystrix and How does Hystrix work

Background In distributed systems, there is one effect where the unavailability of one service or some services will lead to the service unavailability of the whole system, this is called service avalanche effect. A common way to prevent service avalanche is do manual service fallback, in fact Hystrix also provides another option beside this. Definition of Service Avalanche Effect Service avalanche effect is a kind of effect where the service provider fails to provide service which causes t...

   AVALANCHE EFFECT,HYSTRIX,DISTRIBUTED SYSTEM     2019-02-04 06:00:38

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