SEARCH KEYWORD -- Anti-pattern
Singleton Design Pattern in Java
Singleton is frequently used in applications where resource may be expensive to create and no instance specific state needs to be maintained. For example, when creating database connection, a singleton may be needed. Today we will share the famous Singleton design pattern in Java. 1. Definition Singleton design pattern is a design pattern that restricts the instantiation of a class to one object. It is one of the most well-known design patterns. 2. Application Singleton ...
DESIGN PATTERN,SINGLETON,MULTITHREAD,JAVA 2020-04-11 02:16:28
Scala, Patterns and The Perl Effect
He tried to understand that one concept for a couple of months before it made sense to him. Admittedly, partial functions are not intuitive for anyone who has been schooled in traditional programming, but still, looking at the problem he was trying to solve it seemed like James was required to expend too much effort relative to the simplicity of the problem (as he pointed out, now that he understands the concept it seems straightforward). He showed me the code, and it was basically a situa...
Scala,Perl,Pattern,Partial function,Template 2011-12-21 09:25:41
A Programming Idiom You've Never Heard Of
Here are some sequences of events: Take the rake out of the shed, use it to pile up the leaves in the backyard, then put the rake back in the shed. Fly to Seattle, see the sights, then fly home. Put the key in the door, open it, then take the key out of the door. Wake-up your phone, check the time, then put it back to sleep. See the pattern? You do something, then do something else, then you undo the first thing. Or more accurately, the last step is the inverse of the first. Once you're aware ...
Programming,Idiom,Strange 2012-01-04 08:12:25
Java Doesn't Need to Be So Bad
I do a lot of Java coding and I enjoy it. I admit that there is a lot of typing, often a lot of boilerplate and getting even simple tasks done can involve too much work. Most of the tools that try to fix these problems trade one moment saved for another lost. Maven's XML based configuration file is a good example: Thank you for making my project easier to manage and I won't forget that you made me edit XML to do so. These are the things that you live with, these are the things you trade for ...
Java,Coding,Enterprise application,Tedious 2011-12-09 07:50:20
5 good anti SOPA designs
The Stop Online Piracy Act (SOPA) is a United States bill to expand the ability of U.S. law enforcement to combat online copyright infringement and online trafficking in counterfeit goods. Its goal is to protect the intellectual-property market and corresponding industry, jobs and revenue. However since its proposal, many organizations protest against it as they believed it would threaten free speech and innovation, and enable law enforcement to block access to entire internet domains due t...
Do IE developers feel guilty?
IE won the browser war before Chrome appeared with the help of anti-competitive practices. But with the appearance of more and more easy-to-use and fast browsers, people start to hate IE and leave IE. It seems IE is not a product of modern age. Do IE developers feel guilty about this? Everything is contextual. The browser that most people hate today is IE6, which, at the time was one of the best browsers on the planet (it didn't win the Browser Wars, Round One, by accident). It was built on "int...
Pair Programming: The disadvantages of 100% pairing
I’ve written a lot of blog posts in the past about pair programming and the advantages that I’ve seen from using this technique but lately I find myself increasingly frustrated at the need to pair 100% of the time which happens on most teams I work on. From my experience it’s certainly useful as a coaching tool, as I’ve mentioned before I think it’s a very useful for increasing the amount of collaboration between team members and an excellent way for ensuring ...
Software development,Paring,Disadvantage 2012-01-11 12:08:47
10 Easy Things to Do to Enhance Your Online Security Today
If you think you don’t need to take extra steps to increase your cyber security, you are wrong. Statistics on cybercrime are shocking and clearly prove that you can’t have ‘too much security’ while using the Internet today. For example, did you know that by 2023 cybercriminals will have stolen over 33 billion private records or that 15 million Americans became victims of digital identity theft in 2017 (Norton)? That’s not even mentioning millions of monetary losses ...
DATA SECURITY,SECUIRITY 2019-01-21 07:01:37
Ways to make elements in HTML center aligned horizontally
In our daily HTML design, it is an easy job to horizontally center align an element with known width. <div class="element">I am<a href="http://www.aiubug.com" target="_blank" rel="external" title=""> bug </a>ï¼</div> .element{width:960px;margin:0 auto;} The above codes set the width of the div block and horizontally center align it. It's very easy to implement. However, if we have some elements we don;t know their width and we still want to...
HTML,CSS,Center align,Unknown width 2012-07-11 12:55:00
A Hello, World Servlet
Servlets are the pure Java solution to handle web requests. Many application will use servlets instead of JSP and others will use servlets in conjunction with JSP. Experienced JSP programmers use servlets in conjunction with JSP to create clearer and simpler applications. The servlets handle Java processing: form handing, calculation and database queries. JSP formats the results. Servlets belong in WEB-INF/classes. On this machine, the source is in Java source in /var/www/hosts/www.caucho.com/we...
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