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  Custom C++ exception class creation

In standard C++, we can use try catch to catch and exception when something goes wrong. These are some built in exception support in C++. By including the #include , we can now catch exceptions in C++ programs. This actually helps us on debugging our code and reduce the maintenance work.However sometimes if we want to create our own custom exception class. What should we do?We should include the #include line and then extend the exception class and implement some methods as you like. The genera...

   C++,std,exception,custom exception,implementation     2012-03-04 09:58:18

  A Guide on Creating a Magento 2 Extension

Normal 0 false false false EN-US X-NONE X-NONE

   MAGENTO, MAGENTO 2,MAGENTO 2 MODULE CREATOR     2016-02-29 03:08:08

  Fear of Ignorance

This past week, I was interviewing a candidate for a VP role along with two of our engineering leads. Everyone in the room excluding myself was classically “technical” – they could write code, had experience solving hard software problems and a background in computer science. I wrote my last line of PHP in 2004, and it had to be rewritten by a real programmer within 6 months.During the interview, we had the following exchange (due to an imperfect memory, I’ll ...

   Leader,Team,Technical,Leadership,Ignorence     2011-11-21 10:03:03

  â€œBuild something people want” is not enough

Most people take “Build something people want” to mean “Pick a problem to solve and solve it well.” This is not sufficient to build a world changing company.“Why now?” is the question entrepreneurs really need to answer. “Why now” encompasses two important and closely related concepts:Why have previous attempts at this idea failed?What enabling factors have emerged that enable you to succeed today?The world is full of smart people who have the same...

   User requirement,User friendly,Example,People needs     2011-11-16 08:18:45

  Using MemoryMappedBuffer to handle large file in Java

When handling large files, it will largely affect the process speed while using traditional FileInputStream, FileOutputStream or RandomAccessFile since they trigger lots of read and write operations. In Java NIO, a new way of handling large file is introduced which is to use MmeoryMappedBuffer to create memory mapped file. Memory-mapped I/O uses the filesystem to establish a virtual memory mapping from user space directly to the applicable filesystem pages. With a memory-mapped file, you can pre...

   JAVA,IO,NIO     2015-11-13 01:58:08

  Coder or Clown?

That’s the challenge. Sit down with someone you’ve never met and try to work out if they are a coder or a clown. I don’t mean to insult anyone, of course, and I’m the first to acknowledge the years of training and effort that goes into being a professional clown. But some coders, oh boy. Like the time I interviewed a recent graduate. I’ll call her Ada. Full of sympathy for the novice programmer I started with a gentle warm-up, a soft-ball question to break the ...

   Coder,Clown,State,Profile,Category     2011-08-28 23:04:46

  Understanding lvalues and rvalues in C and C++

The terms lvalue and rvalue are not something one runs into often in C/C++ programming, but when one does, it’s usually not immediately clear what they mean. The most common place to run into these terms are in compiler error & warning messages. For example, compiling the following with gcc: int foo() {return 2;} int main() { foo() = 2; return 0; } You get: test.c: In function 'main': test.c:8:5: error: lvalue required as left operand of assignment True, this code ...

   lvalue,rvalue,C++,locator value,elaboration     2011-12-15 07:51:38

  Java’s toLowerCase() has got a surprise for you!

Have you ever encountered a surprise while using toLowerCase()? This is a widely used method when it comes to strings and case conversion. There is a nice little thing you should be aware of. toLowerCase() respects internationalization (i18n). It performs the case conversion with respect to your Locale. When you call toLowerCase(), internally toLowerCase(Locale.getDefault()) is getting called. It is locale sensitive and you should not write a logic around it interpreting loca...

   Java,toLowerCaser(),Locale specific,Stra     2011-09-29 11:21:07

  Create an adaptable website layout with CSS3 media queries

With the rise of both very large screens and mobile devices, web developers have to be able to create websites that display correctly and look good whatever the device is. Sure, you can use good old techniques like fluid layouts, but I’ve got something better to show you today. This tutorial will teach you how you can create an adaptable website layout using CSS3.Getting startedView demo (Horizontally resize your browser to view it in action)Download filesCreating the default layoutT...

   CSS3,Media,Mobile device,Resize,PC,@medi     2011-09-20 12:38:27

  Display GIF animation while submitting the web form

Internet appears everywhere in our life. Form as a data gathering component is the must have component in a web app. When the page is submitting data to the server, if it takes a relative long time for the backend server to process the data, then the client users will feel lost while waiting for this if he cannot get any indication about what's happening. They may even reclick the button which will cause the data resubmission. This affects the user experience and also the system performance and ...

   HTML,Spin,Submit,Form     2013-05-17 11:47:07

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