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  String.length() vs String.getBytes().length in Java

In Java, String.length() is to return the number of characters in the string, while String.getBytes().length is to return the number of bytes to represent the string with the specified encoding. By default, the encoding will be the value of system property file.encoding, the encoding name can be set manually as well by calling System.setProperty("file.encoding", "XXX"). For example, UTF-8, Cp1252. In many cases, String.length() will return the same value as String.getBytes().length, but in some ...

   Java,UTF8,String,Encoding,Sample     2015-04-01 22:22:23

  PHP Sucks! But I Like It!

I read a rather interesting post yesterday called PHP: a fractal of bad design. It's been getting a lot of traffic among the PHP community lately because it's rather inflammatory. But to be honest, it does make a lot of really good points. It also makes a lot of mistakes and misses a bigger picture. A Few Mistakes The post makes quite a few mistakes and odd apples to oranges comparisons. Let me point out the major ones that I saw. No Debugger - PHP has xdebug which works quite...

   PHP,Bad design,Like     2012-04-12 06:15:42

  Using public key authentication in SSH

SSH is a popular cryptographic network protocol for secure network service operation. It is frequently used in remote server login. For a system administrator or software developer, SSH is frequently used to access remote servers or development servers or testing servers etc.  To login with SSH, there are different authentication mechanisms : password, public key and interactive etc. If a remote server needs to be accessed frequently, password authentication may be too troublesome as p...

   LINUX,DEBUG,SSH,PUBLIC KEY     2016-09-10 05:55:46

  That “JavaScript not available” case

During some interesting discussions on Twitter yesterday I found that there is now more than ever a confusion about JavaScript dependence in web applications and web sites. This is a never ending story but it seems to me to flare up ever time our browsing technology leaps forward. I encountered this for the first time back in the days of DHTML. We pushed browsers to their limits with our lovely animated menus and 3D logos (something we of course learned not to do again, right?) and we were ...

   JavaScript,Security,Banned,Reason     2012-01-04 02:37:35

  Short SASS tutorial

If you learned CSS before, you should know that CSS is not a programming language. You can use it to design webpage style, but you cannot use it for programming, i.e, CSS is what designer uses, not what programmer uses. Programmer may think that CSS is very troublesome, it has no variables, no conditional statements, it just allows line-by-line description of HTML elementsLuckily, CSS preprocessor appear which makes CSS programmable. The general idea of CSS preprocessor is using a programming la...

   CSS,SASS,programmable,variable,condition,comment     2012-06-22 08:38:18

  Speech balloon with pure CSS--One step further

Many of us want to add cool features to our websites to make our websites user friendly ad more attractive. Especially in Web2.0 era. Today we are talking about adding speech balloon feature to our webpage so that we can display beautiful help windows while users mouse over some help icons on our page. First, let me introduce one post written by Umar Ashfaq named "How to create a speech balloon with pure CSS". He also explains how this works. You can also refer Magic CSS shape for more informati...

   Speech balloon, Pure CSS,border     2013-03-16 04:11:58

  XMLHttpRequest Level 2 user guide

XMLHttpRequest is a web browser interface, it makes it possible for JavaScript doing HTTP(s) communication. Microsoft's IE5 first introduced XMLHttpRequest, because it's so useful that many other browsers also adopted this. AJAX came to the front since. However, this interface is not standardized, implementation among different browsers is different, with the emerging of HTML5, W3C is considering to standardize this interface. In February 2008, they proposed a XMLHttpRequest Level 2 draft. This ...

   XMLHttpRequest, progress, upload, binary data     2012-09-19 11:51:50

  Should All Web Traffic Be Encrypted?

The prevalence of free, open WiFi has made it rather easy for a WiFi eavesdropper to steal your identity cookie for the websites you visit while you're connected to that WiFi access point. This is something I talked about in Breaking the Web's Cookie Jar. It's difficult to fix without making major changes to the web's infrastructure. In the year since I wrote that, a number of major websites have "solved" the WiFi eavesdropping problem by either making encrypted HTTPS web traffic an accou...

   Web traffic,Security,HTTPS.Encryption,Wifi     2012-02-24 05:02:58

  India: The World's Secret Silicon Valley

You might not know it, but a key cog in the global innovation machine is hiding in plain sight in the world's largest democracyReutersFor many firms, developing new products for consumers around the world is the most visible manifestation of innovation - the "real deal." But many people still see India as a place where other people's ideas are made or executed and not where innovation begins. (After all, you don't hear about an Indian equivalent to Google, iPod or Viagra.) Bu they're wrong. In m...

   Innovation,India,Silicon Valley,GE,Chip,Intel     2011-11-16 08:06:54

  Building the new AJAX mail UI part 2: Better than templates, building highly dynamic web pages

This is part 2 of a series of technical posts documenting some of the interesting work and technologies we’ve used to power the new interface (see also part 1, Instant notifications of new emails via eventsource/server-sent events). Regular users can skip these posts, but we hope technical users find them interesting. As dynamic websites constructed entirely on the client side become de rigueur, there are a number of templating languages battling it out to become the One True Wayâ„...

   Web design,Dynamic,Ajax,UI     2012-02-21 05:32:29

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