Java
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Java IAQ: Infrequently Answered Questions
A question is infrequently answered either because few people know the answer or because it is about an obscure, subtle point (but a point that may be crucial to you). I thought I had invented the term, but it also shows up at the very informative About.com Urban Legends site. There are lots of Java FAQs around, but this is the only Java IAQ. (There are a few Infrequently Asked Questions lists, including a satirical one on C .)Wouter Coekaerts » Puzzles
This is a series of Java puzzles that put your Java skills to the test, in a challenging and fun way! A puzzle consists of some given Java code with a line in it that seems to be impossible to reach. It’s up to you to find the hole in it, abuse a subtle behavior of Java to make execution reach that line anyways. Rules
[JavaSpecialists 199] - Hacking Java Surreptitiously
Issue 199 2012-02-23 Category: Language Java version: Java 1 - Java 7 Surreptitious: stealthy, furtive, well hidden, covert. In this newsletter we will show two Java puzzles written by Wouter Coekaerts that require a surreptitious solution. You cannot do anything to upset the security manager.If you are going for java interview on any Investment bank expect lots of muti-threading interview questions on your way. Multi-threading is a favorite topics on Investment banking specially on electronic trading development and they grill candidate on many confusing java thread interview questions. They just want to ensure that the guy has solid knowledge of multi-threading and concurrent programming in java because most of them are in business of performance. High volume low latency Electronic trading System which is used for Direct to Market (DMA) trading is usually concurrent in nature.
Top 15 java threading interview questions asked in Investment banks
Clean Code: A Handbook of Agile Software Craftsmanship | Free eBooks Download - EBOOKEE!
Even bad code can function. But if code isn’t clean, it can bring a development organization to its knees. Every year, countless hours and significant resources are lost because of poorly written code. But it doesn’t have to be that way. Noted software expert Robert C.
Posted by Uncle Bob on 04/08/2008 I’ve been working on this book for several years now. After a flurry of effort (you might have noticed I’ve been quiet lately) I’m very pleased to say that I’m done with the writing and am preparing the manuscript for production. See The Prentice Hall Listing
Clean Code. Whew!
Introduction T he recent Java 5 (a.k.a. Java 1.5) generics implementation opens both new problems and new opportunities in the implementation of the "Gang of Four" (GoF) Factory patterns [Gamma, et al 1995].
Factory Chain: A Design Pattern for Factories with Generics by Hugo Troche - developer.*, Developer Dot Star
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Java Generics FAQs - Frequently Asked Questions - Angelika Langer Training/Consulting
Texas-based Labatt Food Services (10th largest food distribution service in the US) had a problem. Every fall, hundreds of schools would start to stock their cafeterias, making large, unpredictable orders and causing chaos in Labatt’s inventories. The "School Start" application, developed with a DDD process, was a catalyst to over $1 million dollar operational savings in its first year of existence. In its first 3 years of use, the system has reduced inventory investment by over $8 million dollars while reducing out-of-stock items on orders by 50%, despite a 15% increase in sales. Furthermore, this application and an entirely new business process were developed in parallel and rolled out smoothly during the critical period preceding school start!
Domain-Driven Design Community
An Introduction to Domain Driven Design
Today’s enterprise applications are undoubtedly sophisticated and rely on some specialized technologies (persistence, AJAX, web services and so on) to do what they do. And as developers it’s understandable that we tend to focus on these technical details. But the truth is that a system that doesn’t solve the business needs is of no use to anyone, no matter how pretty it looks or how well architected its infrastructure. The philosophy of domain-driven design (DDD) – first described by Eric Evans in his book [1] of the same name – is about placing our attention at the heart of the application, focusing on the complexity that is intrinsic to the business domain itself. We also distinguish the core domain (unique to the business) from the supporting sub-domains (typically generic in nature, such as money or time), and place appropriately more of our design efforts on the core.
"I can't recall when I was so excited about a framework, specially for web development. I have been in the field since 1983 and I am hard to impress. With OpenXava I am impress!"
Desarrollo Aplicaciones Web
DDD Sample Application - Introduction
One of the most requested aids to coming up to speed on DDD has been a running example application. Starting from a simple set of functions and a model based on the cargo example used in Eric Evans' book , we have built a running application with which to demonstrate a practical implementation of the building block patterns as well as illustrate the impact of aggregates and bounded contexts. Our sample does not show *the* way to do it, but a decent way.javashot - Project Hosting on Google Code
This project uses Java instrumentation capabilities to captures the dynamic execution flow of a Java program, which enable you to better understand the execution of your Java program. The program generates a set of .dot files which can bee visualized using the tools from ( http://www.graphviz.org/ ). use ZGRViewer or xdot.py ( http://www.graphviz.org/Resources.php ) for viewing large graphs. You can also use gvpr or standard unix grep to extract a subset of a large graph. The generated graph can be seen as UML activity diagram (which is by the way isomorph to the UML sequence diagram).GEF
The Graphical Editing Framework (GEF) provides technology to create rich graphical editors and views for the Eclipse Workbench UI. It bundles three components: Draw2d (org.eclipse.draw2d) - A layout and rendering toolkit for displaying graphics on an SWT Canvas. GEF (MVC) (org.eclipse.gef) - An interactive model-view-controler (MVC) framework, which fosters the implementation of SWT-based tree and Draw2d-based graphical editors for the Eclipse Workbench UI.The goal of the Eclipse m2eclipse project is to provide Apache Maven support in the Eclipse IDE, making it easier to edit Maven's pom.xml, run a build from the IDE and much more. For Java developers, the very tight integration with JDT greatly simplifies the consumption of Java artifacts.