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  How to help new joiners involve in projects

Usually when a new joiner involves in a new project, he will spend much time on understanding the background of the project, the current status of the project and the requirements of the project etc. It is very easy for them to get lost in this stage. So to effectively help them involve in the project, we need have some people guiding them, giving them some useful instructions. What should we do to help them? Here are some steps I take.1. Project backgroundIn this phase, I will introduce to them...

   New joiner,Experience     2012-05-05 11:06:18

  Different types of keystore in Java -- JKS

JKS is Java Keystore, a proprietary keystore type designed for Java. It can be used to store private keys and certificates used for SSL communication, it cannot store secret keys however. The keytool shipped with JDKs cannot extract private keys stored on JKS. This type of keystore usually has an extension of jks. Next we will show how to operate the JKS keystore with pure Java code. Create JKS keystore The simplest method to create a JKS keystore to create an empty keystore. We can first get an...

   DEMO,EXAMPLE,KEYSTORE,JKS     2014-09-05 20:21:51

  Understanding Twitter Bootstrap 3

On 27, July, Twitter Bootstrap 3 RC 1 was released, if there are no major bugs found in this release, then it will be the final released Twitter Bootstrap 3 with some minor changes. What changes does Bootstrap 3 have compared to Bootstrap 2? After checking the documents, we can find that there are mainly 3 changes. Embrace flat design In Bootstrap 3, it begins to embrace flat design. First from the official webpage of Bootstrap 3, we can find elements are flat designed. Also, all buttons have no...

   Bootstrap 3,Change,Bootstrap 2     2013-08-05 07:06:22

  Find files by size in Linux

In Linux systems, you may encounter a situation where there is no enough space on the system while you are trying to install some new packages or writing some data. In this case, you may want to clear some unneeded files. A frequent need will be find the largest files in the system so that they can be deleted first and disk space can be released quickly. In this post, we will show a simple command to find files by size so that we know what files are taking the specified space on the system, This...

   LINUX,FILESIZE,FIND     2020-04-25 08:02:45

  Sort an array with only one local variable

Array sorting algorithm question is frequently asked during technical interviews. There are lots of sort algorithms including bubble sort, selection sort, insertion sort, quick sort, merge sort etc. Usually interviewees will be asked to implement sort algorithms. But have you ever been asked to sort an array which you are allowed to define ONLY ONE local variable in your algorithm?  Bubble sort can be used to do this actually. Normally a bubble sort algorithm may need three local ...

   JAVASCRIPT,ALGORITHM,SORTING,BUBBLE SORT     2016-10-07 09:46:49

  Tencent CEO : Mobile social gaming will be the profit breakthrough point of WeChat

Tencent CEO Ma Huateng said mobile social gaming would be one of the biggest light spot and also the profit profit breakthrough point of WeChat.Mr. Ma thinks that the principle of public accounts of WeChat is very simple, In the early period of QQ, users could also send messages and feedback, the reason why WeChat is so charming is because the phone has audio and video capabilities, this is very different from the text on the PC. Public account service providers can send voice passages to users ...

   Tencent,WeChat,GMIC     2013-05-07 07:27:23

  An easy way to log client side information to server

JavaScript debug is a very troublesome thing in web application development. Because many web browsers will not notify you if there is any error in the JavaScript codes you write. They just silently fail and block the following codes execution. In order to debug JavaScript codes, we need a good log mechanism which will help us log the error information,, we often need to log errors in JavaScript codes to server for debug purpose in a production web application, What should we do? The first ...

   JavaScript log, Ajax,Image,Debug     2012-12-30 09:16:50

  Maybe we need //Comment comment

Do we need comment in our programs? Depends, if we can write a program which can clearly tell s the reader what the program does, then we had better to avoid unnecessary comments. However, if the program we develop is complex enough and it involves some uncommon logic which needs more explanation, then we have to add comment and make sure the comment we add can correctly tell the readers what we do. The worst scenarios is not you forget or you don't want to add comment, it's that you add comment...

   comment,programming     2014-07-23 04:38:04

  If programming language is a knife, what would it be?

The following diagram shows that if is a programming language is a knife, what would it be.? This figure I personally feel very interesting.I try to give my  explanation for some languages  here:.C + +, C and Pascal are the Swiss Army knife. The knife of the C language has a USB, that can do hardware operation. C++, a knife with everything, C + + is a variety of languages​​. Swiss army knife (figure C+ + is very powerful, do not think that it is fictional, this knife is r...

   Programming language,Knife,Swiss army life     2012-04-21 00:52:22

  CASSANDRA data model

Cassandra is an open source distributed database, it combines dynamic key/value and column oriented feature of Bigtable. Features of Cassandra are: Flexible schema, no need to design schema first, it's very convenient to add or delete strings Support range search on keys High usability, extensible. The single node error will not affect the cluster. We can think Cassandra's data model as a 4 or 5 dimensional Hash. COLUMN Columns is the smallest data unit in Cassandra, it is a 3 dimensional data...

   Cassandra,database,sort     2013-06-08 22:07:40

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