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SEARCH KEYWORD -- Object creation

  Using JavaScript to operate clipboard

Browsers allow JavaScript to read and write data on clipboard. Generally script should not modify user's clipboard to avoid impacting user expectation, but there are cases where this can indeed bring convenience to users. For example, for some code snippet, user can copy it to clipboard with one click instead of select and copy manually. There are three options for clipboard operation provided in JavaScript/browser: document.execCommand() Asynchronous Clipboard API copy and paste events This p...

   JAVASCRIPT,CLIPBOARD,NAVIGATOR.CLIPBOARD     2021-01-23 23:23:34

  Use of log in programming

Usually, The purposes of log are for troubleshooting and displaying program running status. Good log will help us locate the error easier. Many programmers think log in programs is very simple, but it's not an easy task to write log codes to efficiently locate the error. Here we discuss about program log in three aspects: Where to log What to log Log styles to be avoided Where to log 1. When calling external functions When your program is calling some external functions which are not written b...

   Log, Programming,Debug     2012-11-28 11:42:23

  Address of a Java Object

In conventional java programming, you will never need address or location of a java object from memory. When you discuss about this in forums, the first question raised is why do you need to know the address of a java object? Its a valid question. But always, we reserve the right to experiment. Nothing is wrong in exploring uncharted areas.I thought of experimenting using a little known class from sun package. Unsafe is a class that belongs to sun.misc package. For some of you the package might ...

   Java,Object,Address,Memory,Start address     2011-09-29 11:17:46

  What to Look for in PHP 5.4.0

PHP 5.4.0 will arrive soon. The PHP team is working to bring to some very nice presents to PHP developers. In the previous release of 5.3.0 they had added a few language changes. This version is no different. Some of the other changes include the ability to use DTrace for watching PHP apps in BSD variants (there is a loadable kernel module for Linux folks). This release features many speed and security improvements along with some phasing out of older language features (Y2K ...

   PHP,5.4,New feature,Built-in server,Trait     2011-12-21 10:20:12

  Creating Dynamic PDF files using HTML and PHP

There always arise a need for converting content from one file format to another one. Some may need to convert some text into HTML and some may need to convert some HTML content to an image format. The main reason for the need to convert from one file format to another is because the target file format is best suited for targeted medium where the content need to be displayed. The targeted medium may be an email, a printed hard copy or a web browser. The text format is best suited for sending ema...

   PHP,HTML,PDF,Conversion,Generate,Library     2011-11-18 12:10:53

  When will resizing be triggered in Java HashMap?

HashMap is one of the most frequently used collection types in Java, it stores key-value pairs. Ideally it expects to use hash table which expects the data access time complexity to be O(1), however, due to hash conflicts, in reality, it uses linked list or red-black tree to store data which makes the worst case time complexity to be O(logn).  Although collections are using data structures like arrays and linked lists, unlike arrays, they will dynamically resize when there is not enough spa...

   JAVA,RESIZE,HASHMAP,THRESHOLD     2020-05-02 20:41:19

  Using DateInterval class in PHP

DateInterval is (amongst others) a relatively new addition to the date extension in PHP 5.3. It allows to describe an interval in time, and you can perform actions with that interval. Basically, it allows to calculate with dates in a very easy way, and do even more fun stuff with it.Unfortunately no documentation exists today for DateInterval and friends, but PHP is open-source so you can easily have a peek at the code to see what’s happening under the engine. This is more or less what th...

   PHP,DateInterval,Class,PHP 5.3,Demo     2011-10-21 10:35:54

  Lasagna Code

Anyone who claims to be even remotely versed in computer science knows what “spaghetti code” is. That type of code still sadly exists. But today we also have, for lack of a better term — and sticking to the pasta metaphor — “lasagna code”.Lasagna Code is layer upon layer of abstractions, objects and other meaningless misdirections that result in bloated, hard to maintain code all in the name of “clarity”. It drives me nuts to see how badly some c...

   Lasagna Code,Analysis,spaghetti code     2011-11-16 03:12:03

  Moving from Java to C++: An Interview with Rogers Cadenhead

In this interview, co-author of Sams Teach Yourself C++ in 24 Hours, 5th Edition Rogers Cadenhead discusses moving from Java to C++, what brought him to C++, and the best tactics for learning C++.Danny Kalev: For how long were you a Java programmer? Can you tell us a bit about the nature of the projects in which you took part at that time?Rogers Cadenhead: I've been a Java programmer since the language was launched by Sun Microsystems in 1995. I was doing website develop...

   Java,C++,Transfer,Transform,New challeng     2011-09-03 11:01:26

  Show drop down list or menu above of a flash in webpage

How to make a drop down menu show above of a  flash in webpage?Normally when we embed a flash or swf file into our webpage, it is not one component of our webpage.So sometimes the flash will always show above of the webpage, it will not interact with our HTML page.To solve this problem,we need to use wmode property of object tag.wmode has three properties: window,opaque and transparent.window : the flash will show in its own rectangular window,which will not interact with    ...

   HTML,Flash,Block,Drop down menu,Solution     2012-03-12 17:13:57

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