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  Java Concurrency Basics: CountDownLatch and CyclicBarrier

CountDownLatch CountDownLatch can be used in synchronizing behavior among threads, it makes one or more threads wait for some actions in other threads to be completed. It has a property count which defines how many countDown() need to be called before other threads which called await() to be waked up.  When a thread calls CountDownLatch.await(), the thread will be blocked until the value of count becomes 0. The initial value of count can be specified when creating the CountDownLatch instanc...

   JAVA,JAVA CONCURRENCY,COUNTDOWNLATCH,CYCLICBARRIER     2018-03-25 07:02:40

  Remove browse button from input type=file

In Web 2.0 era, many websites will ask the user to upload their avatar when creating their profile. In HTML, the input control we should use is input="file". This is a file control provided by the browser vendor and it should be ran in a sandbox for security consideration. Browsers don't provide ways to choose file from local and upload to the remote server without the input="file" control.  There is one annoying part about the input="file", which is a default button named "Choose File" or...

   file,html,browse,remove browse button     2015-07-12 05:17:51

  Kubernetes Authentication & Authorization 101

If we want to build a system with user modules, Authentication and Authorization are something that we can never ignore, though they could be fuzzy to understand. Authentication (from Greek: αὐθεντικÏŒς authentikos, “real, genuine”, from αὐθέντης authentes, “author”) is the act of proving an assertion, such as the identity of a computer s...

   RBAC,AUTHORIZATION,AUTHENTICATION,KUBERNETES     2021-06-05 23:19:18

  Building Security onto Your Mobile Application

Analysts state that more than 75% of the mobile applications will fail the basic security tests in 2015 – Gartner Research. Enterprises that follow the Bring Your Own Device (BYOD) approach and facilitate mobile computing to their employees are susceptible to security threats and other vulnerabilities, unless they implement stringent security measures. In the development or deployment of mobile applications, a business can be severely impacted both financially and otherwise, if they are to...

   Web Application Development Company, iPhone App Development Company     2015-08-21 07:22:32

  When and Where to Use Pointers in Go

When declaring variables in Go, we usually have two syntax options: In some scenarios, pointers; in others, reference; sometimes, either. It’s great to have choices, but it is also confusing sometimes as to which one in which scenario. To be more reasonable in choice-making, I started from pointers, walked through their natures, and summarized some rules in using them in Go. from unsplash, Jordan Ladikos Pointers Go has pointers. A pointer holds the memory address of a ...

   POINTER,GOLANG     2022-05-01 02:24:43

  Essential Features Every Magento Website Should Have

Regarding magento website development, making sure your e-commerce system has the necessary capabilities can greatly improve user experience and operational effectiveness. These are the very necessary tools for a strong Magento website. 1. Mobile-responsive design Crucially in the mobile-first world of today, a mobile-responsive design guarantees your website runs perfectly across all devices. This increases search engine optimization in addition to user experience. 2. Navigating User-friendlin...

   WEB DEVELOPMENT,MAGENTO     2024-07-26 01:41:26

  Build route graph of Hurricane Sandy

Hurricane Sandy swept US east side and landed in New York, it killed 113 persons and incurred 50 billion US dollars economic loss. Sandy is also considered as the most expensive hurricane. We will now use matplotlib and basemap libraries in Python to build a route graph of Sandy. Below is the animated GIF. Shadow is added in the graph to show the time at night, we can see from the graph that Sandy stayed a while in Panama after emerging, then it went through Cuba and became Hurricane-2. Late...

   Hurricane Sandy,Route graph,Python     2012-11-17 07:58:13

  What should Microsoft do after Steve Ballmer steps down?

Steve Ballmer decided to retire from Microsoft within 12 months last week. Where should Microsoft head to and what should they do on their products to maintain their influence.Whether you like or hate Ballmer, and regardless of who will replace him as Microsoft new CEO, his voice became a very important part of different Microsoft conferences, Ballmer said : "We need a CEO who will be here longer term for this new direction."Steve Ballmer is criticized for many things. Under his control, Micros...

   Microsoft,CEO,Trend     2013-08-26 07:33:41

  When You Should Consider Moving From HTML to WordPress Platform?

No matter, you want to introduce big changes in your HTML website or a minor one, you'll have to make the edits in your site's files and then upload all of them by connecting to your FTP server. Now, this can be a pretty time-consuming and a daunting prospect for business owners who requires to make changes to the site on a regular basis. You should think about moving from your static HTML to some dynamic platform that provides you the flexibility to make the process of content editing become a ...

   HTML to Wordpress, HTML to Wordpress Conversion, Convert HTML to Wordpress,     2014-07-29 07:16:30

  Today on history : Twitter cofounder Evan Williams was born

Evan Williams, born March 31, 1972. American entrepreneurs, has created a number of Internet companies, including Pyra Labs, (operational blog, Blogger) and Twitter. He was Twitter, CEO from October 2008 to October 2010. Twitter former CEO Evan WilliamsEvan Williams grew up on a farm in Nebraska Clark Village. At the University of Nebraska, he studied a year and a half, then he started to work. He did different technologies work in some tech start-ups in Key West, Dallas, Austin, Texas. In 1996...

   Twitter,Cofounder,Evan Williams,Introduction     2012-03-31 08:49:18