SEARCH KEYWORD -- Structure
Should we use Abstract class or Interface?
When we write programs, we may often get into a situation where we don't know whether we should use Abstract class or Interface when we want to define an abstract object. These two are very similar and they are interchangeable in many cases. On Stackoverflow, this question is asked lots of times and it's related to many programming languages. Also in the official documentation of PHP regarding the Abstract class and Interface, people are arguing about this. To understand this question, their dif...
DIFFERENCE,INTERFACE,ABSTRACT CLASS,COMPARISON,OOP 2013-04-15 11:44:36
6 necessary WordPress plugins for personal blogs
WordPress is now adopted by most bloggers, it has various themes and powerful plugins. There are lots of amazing plugins can be chosen such as spam comment filers and sitemap generators. For novice WordPress users, you may be confused about which plugin to choose, here we share with you 6 necessary WordPress plugins. Akismet Akismet is a built-in WordPress comment plugin. It checks your comments against the Akismet web service to see if they look like spam or not and lets you review the spam it ...
WordPress plugin,Comment,Sitemap 2013-08-05 03:18:40
Using JSON in PHP
Currently JSON has become one of the most popular data exchange formats. Many website APIs support it. Since PHP 5.2, PHP provides json_encode() and json_decode() method to handle JSON encoding and decoding.1. json_encode()This function is used to transform array and objects to JSON format. First let's look one array example. $arr = array ('a'=>1,'b'=>2,'c'=>3,'d'=>4,'e'=>5);   echo json_encode($arr);the result is{"a":1,"b"...
JSON,PHP,json_decode(0,json_encode() 2012-05-06 06:04:42
Why Data Structures Matter
Our experience on Day 0 of JPR11 yielded a nice example of the need to choose an appropriate implementation of an abstract concept. As I mentioned in the previous post, we experimented with Michael Barker’s Scala implementation of Guy Steele’s parallelizable word-splitting algorithm (slides 51-67). Here’s the core of the issue. Given a type-compatible associative operator and sequence of values, we can fold the operator over the sequence to obtain a single accumulated v...
Data structure,JPR,Importance 2012-01-08 10:13:56
Why exception would be thrown when deleting element while looping through HashMap in Java
HashMap and other Collection types are frequently used in Java application programming. This post will explain why exception would be thrown when deleting element with Map.remove() while looping through a Map using Iterator. This issue would also occur to other Collection types such as Set, List. Below is a sample code snippet demonstrating the exception thrown. Map<String,String> map = Collections.synchronizedMap(new TreeMap<String,String>()); map.put("key1","value1"); map.put("ke...
JAVA,HASHMAP,CONCURRENTMODIFICATIONEXCEPTION 2018-06-30 12:49:09
Use of @font-face
Almost all web browsers(including the dinosaur browser IE6) support the web font property @font-face. Its usage is: @font-face { font-family: 'MyWebFont'; src: url('webfont.eot'); /* IE9 Compat Modes */ src: url('webfont.eot?#iefix') format('embedded-opentype'), /* IE6-IE8 */ url('webfont.woff') format('woff'), /* Modern Browsers */ url('webfont.ttf') format('truetype'), /* Safari, Android, iOS */ url('webfont.svg#svgFontName') format('svg'); /* Legacy iOS */ } Now we...
CSS,@font-face 2014-06-08 07:17:34
8 Step Guide to Rewrite Articles
Crafting an eye-catching article may be god-gifted talent, for many people. But anyone can learn the skill of article rewriting. You can find articles all around, newspapers, websites, and magazine even at the back of different products. These articles will give a basic understanding of what readers look into articles and what they expect. It will help you to craft an appealing article according to readers demand. For beginners, below you will find a list of four types of articles. Description...
ARTICLE WRITE,TOOL 2019-05-15 07:58:52
Guide on recovering data in MySQL
In our daily work, there might be mistakes made which got some data or even databases deleted in MySQL. If this happens on production, it would be a nightmare. In case this happens, normally DBA would jump in to save the world. And they would try to recover the data from the backup if there is any. But if there is no backup, then the show stops. Hence database backup is necessary on production environments to avoid such awkward situation. Also normally in MySQL, binlog should be enabled as well ...
11 Important Database designing rules
Introduction Before you start reading this article let me confirm that I am not a guru in database designing. The below 11 points which are listed are points which I have learnt via projects, my own experiences and my own reading. I personally think it has helped me a lot when it comes to DB designing. Any criticism welcome. The reason why I am writing a full blown article is, when developers sit for designing a database they tend to follow the three normal forms like a silver bullet. They...
Database design,Rules,OLAP 2012-04-12 05:51:38
The requirements of DevOps development
DevOps has become a popular and commonly adopted software development model in IT industry in recent years. Its popularity is partially because it advocates it could improve software development efficiency, delivery speed and cost saving. This is especially favored by managers who become the main force to promote this type of development model in their companies. However, we must be cautious about DevOps model as well. With their advantages, they also bring challenges to development teams and th...
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