<pedrocorreia.net ⁄>

<The Google Collections Library ⁄ >

clicks: 2983 2983 2008-05-30 2008-05-30 goto programacao myNews programacao  Bookmark This Bookmark This

One of the things that first attracted me to Java many years ago was the inclusion of a standard collections library in the platform. At the time, in the C++ world, the STL (Standard Template Library) had yet to catch on, and developers were either left to find a collections library that they could buy and use (Rogue Wave became very popular), or more often write their own. I have lost count of how many times I implemented a linked list of something-different primitives or objects for different purposes. Then, there were the more complex collections, self-balancing binary trees, and hash tables. Although it might have been good for staying in touch with the software engineering basics, it was not so good for productivity.

Java changed all that. Even the 1.0 and 1.1 collection classes were a huge improvement, but the introduction of the Java Collections Framework with Java 1.2 was a quantum leap forwards in productivity. Since then, the standard collections have been regularly enhanced and improved, and with the addition of Generics in Java 5, the collections were updated to take advantage of those to give (at least compile-time) type checking. Doug Lea's concurrent collections (part of java.util.concurrent since Java 5) is a welcome addition as well, giving us collections like Queue and ConcurrentMap, which are ideal for use in concurrent systems.

Despite all of this, there are holes in the standard collections, items that are often re-implemented by developers, sometimes in a less-than-optimal way. There are pain points too. The cost/benefit analysis of Generics (or at least their implementation in Java) is an ongoing discussion, but whether you like them or not, they are very verbose; for example, looking back at collections in 2003 you would have seen something like:

este é só um excerto do artigo, para aceder ao artigo completo, clique no link em baixo:
this is just a small excerpt from the article, to access the full article please click in the link below:


Subscribe News RSS  Subscribe News Updates by E-mail

myNews <myNews show="rand" cat="programacao" ⁄>

RouterJs: easy routing for your ajax Web applications new ...

RouterJs is a simple router for your ajax web apps. It's build upon History.js which means that Rout (...)

clicks: 16711 16711 2012-05-14 2012-05-14 goto url (new window) haithembelhaj.g... goto myNews programacao

Backbone computed properties new ...

This gist shows one way to implement read- and write-enabled computed properties on a Backbone Model (...)

clicks: 16539 16539 2012-05-13 2012-05-13 goto url (new window) https://gist.gi... goto myNews programacao

HTML5 jQuery Paint Plugin new ...

Websanova Paint is a HTML5 canvas based jQuery plugin. It allows you to free paint on a canvas area (...)

clicks: 27382 27382 2012-05-12 2012-05-12 goto url (new window) websanova.com/t... goto myNews programacao

Create Instagram Filters With PHP new ...

In this tutorial, I'll demonstrate how to create vintage (just like Instagram does) photos with PHP (...)

clicks: 16311 16311 2012-05-12 2012-05-12 goto url (new window) net.tutsplus.co... goto myNews programacao

Android Query new ...

Android-Query (AQuery) is a light-weight library for doing asynchronous tasks and manipulating UI el (...)

clicks: 16739 16739 2012-05-12 2012-05-12 goto url (new window) code.google.com... goto myNews programacao

Sass vs. LESS vs. Stylus: Preprocessor Shootout new ...

CSS3 preprocessors are languages written for the sole purpose of adding cool, inventive features to (...)

clicks: 15967 15967 2012-05-11 2012-05-11 goto url (new window) net.tutsplus.co... goto myNews programacao

Real-time Applications With Node.js and Socket.IO new ...

Hey everyone! Sorry about the long pause since the last blog post, life has been quite hectic for th (...)

clicks: 16680 16680 2012-05-11 2012-05-11 goto url (new window) codingcookies.c... goto myNews programacao

15 Handpicked jQuery Drop Down Menus Tutorials new ...

Here we are presenting another brilliant collection of 15 jQuery navigation menu that you can downlo (...)

clicks: 15676 15676 2012-05-10 2012-05-10 goto url (new window) smashingapps.co... goto myNews programacao