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  Find the kth smallest number in an array

This is an classical question, the general solution to this question is first using sorting algorithm to sort the array, then get the kth number in the array, the complexity is O(nlogn), we can also use selective sort or head sort to, the complexity of selective sort is O(kn) and heap sort is O(nlogk). The better solution is to use quick sort to find the kth smallest number, the complexity is O(n), the worst case cost is O(n^2). But today we introduce one more solution which has the worst case c...

   Sort, Quick sort, Search,Smallest     2013-01-09 06:20:54

  How to apply Domain Level Group Policy

As a system administrator, you may often need to create a Windows domain of a computer network in which all user accounts, computers, printers and other security principals, are registered with a central database (called a directory service). Also one or more domain controllers need to be deployed to enable managing the domain. In this post, we will show you how to apply Domain Level Group Policy. There are lots of posts which have covered how to promote a Windows server to a Domain Controller. ...

   Group Policy,Domain Controller,Account Policy, GPO     2015-03-19 03:46:34

  Google Chrome to support sync clipboard data among devices

Google has been working very hard to make it possible for syncing clipboard data among PC and Android devices through Chrome. This feature is finally available in Chrome Canary 79 and is going to be released in future version of Chrome although it only supports sync data from PC to Android but not vice versa. But before getting to that day, users can start to explore this feature in latest Chrome Canary version 79.  There are three flags(chrome://flags) to control enablement of the feature...

   WINDOWS 10,CHROME CANARY,CLIPBOARD,CLIPBOARD SYNC     2019-09-15 07:18:26

  Install PHP 8 in WampServer

With the release of PHP 8.4, there are some new features added in, it reminds me that I may need to upgrade my development environment PHP version as well. It has php 5.x and php 7.x installed already, now I need to add php 8.x as well. This post will show the steps to achieve this. Step 1 Install PHP 8.x The first step is that we need to download the new PHP version. Here we chose PHP 8.1.31. Once the zip file is downloaded, unzip it and copy the folder to c:/wamp64/bin/php and rename the folde...

   WAMP,GUIDE,PHP VERSION,PHP 8     2024-11-24 02:43:22

  Kodiak PHP can run PHP codes offline on iPad

In the eyes of the vast majority of application developers, iPad is the terminal equipment for running code, rather than the tool used to write code. However, there are some applications developers finding iPad's potential to develop a wide variety of programming applications with some applications, such as Diet Coda, Koder, Gusto and so on. The family of applications for writing applications has added a new member -  Kodiak PHP. This application runs on iPad, it can be used to develop PHP ...

   Kodiak PHP, rogramming,iPad     2012-09-24 11:54:08

  Service discovery with etcd

In previous post, we have talked about etcd and its usage. This post we will cover how to implement server discovery with etcd. Service discovery is to solve one of the most commonly seen scenarios in distributed system where how to find the corresponding target service to talk to. In short, it is to find some server which one can talk to based on some service name. A complete service discovery system include below three key functions: Service registration: A service must register itself to so...

   ETCD,SERVICE DISCOVERY,DEMO,TUTORIAL     2021-03-08 05:36:29

  Browse OpenJDK Java source code in Eclipse

Java 8 was recently released, many developers are now trying to extract the source code of Java 8 to find out how the new added features such as Lambda expressions, default method in interfaces, new Time API are implemented. How do you manage to download and browse the source code? Today we are going to show how to extract OpenJDK Java source code to Eclipse. Since OpenJDK is adopting Mercurial as its distributed version control system, you need to install Mercurial on your computer first before...

   OpenJDK,Java 8,Source code,Eclipse     2014-06-16 00:53:34

  Webinar Best Practices For A Webinar Experience Your Audience Will Love

The web conferencing technology has been getting a lot of attention lately, and for good reason. With global lockdowns and social distancing norms in effect, video conferencing has emerged as an economical way of staying in touch with office colleagues, friends, and family members. However, if that’s all you are using this technology for, you may not fully understand what is web conferencing and its immense potential. For instance, lately, web conferencing technology is being used to deliv...

   WEB CONFERENCE,WEBINAR     2020-11-07 04:19:52

  jQuery 2.0 gives up IE 6/7/8

jQuery 2.0 is released after 10 months development. jQuery 2.0 is customized for modern web browsers and also considers about mobile devices. But one big change is that jQuery 2.0 will not be  compatible with old versions of IE and its size is 10% less than the version 1.9.1. The execution efficiency is higher as well. jQuery 1.9.x will still be maintained by jQuery team, they will also provide update for it. Those websites which want to be compatible with all browsers should not upgrade to...

   jQuery 2.0,IE support     2013-04-20 07:58:16

  â€œExperience says it all”- Pentaho ETL Developers’ Comment on the Use of ETL Tools

Since months Pentaho ETL developers have been juggling with three distinct tools- Pentaho DI, SSIS, and PowerShell. Their experience has provided them new perspective on the cons and pros of every tool. In this post, they are sharing their experience with these tools and explain their significance. Before getting started, they first would like to explain ETL in brief and how the tools suits ETL landscape. ETL is Extract Transform Load. Informatica was the initial ETL tool introduced in the mid n...

   Pentaho BI ETL tools     2015-05-13 01:14:57

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