Different Types Of Java Applications

We have just released a new tutorial and sample code to illustrate how to use Java-related technologies in Windows Azure. In this guide, we provide a step-by-step tutorial on how to migrate the Java Spring Framework application (petclinic sample application) to the Windows Azure cloud. The code that comes with this document is also published in GitHub. We encourage Java developers to download and explore this new sample and tutorial. Windows ...

In this issue of Java Development 2.0, Andrew Glover describes how to develop and deploy for Amazon elastic Compute Cloud (EC2). Learn about the differences between EC2 and Google App Engine, and how to quickly build and run a simple EC2 with the Eclipse plug-in and the concise Groovy language ...

In the past few years, the innovative development of the open source world has elevated the productivity of Java™ developers to one level. Free tools, frameworks and solutions make up for once-scarce vacancies. The Apache CouchDB, which some people think is a WEB 2.0 database, is very promising. It's not difficult to master CouchDB, it's as simple as using a Web browser. This issue of Java open ...

In the past, Java developers relied on Web browsers as the front end of their applications. But the process is often frustrating: HTML is clumsy, JavaScript is slow and hard to use, and without debugging tools, it's a tough process to make your application compatible with all browsers. But now your gospel is coming, with the improvement of browser technology, especially after the adoption of HTML5, the above problems have been significantly improved. Let's take a look at the 5 benefits that HTML5 can bring to Java developers. 1, Cross-platform ...

Big data has almost become the latest trend in all business areas, but what is the big data? It's a gimmick, a bubble, or it's as important as rumors. In fact, large data is a very simple term--as it says, a very large dataset. So what are the most? The real answer is "as big as you think"! So why do you have such a large dataset? Because today's data is ubiquitous and has huge rewards: RFID sensors that collect communications data, sensors to collect weather information, and g ...

Cloud computing: Redefining IT over the past year, cloud computing exploded, including a variety of applications-such as Salesforce CRM and Google apps-and services-such as hosting Amazon elastic Compute Cloud (Amaz On EC2) ibm®db2®, Google ...

While the term cloud computing is not new (Amazon started providing its cloud services in 2006), it has been a real buzzword since 2008, when cloud services from Google and Amazon gained public attention. Google's app engine enables users to build and host Web applications on Google's infrastructure. Together with S3,amazonweb services also includes elastic Cloud Compute (EC2) calculation ...

Sc++a Java runtime consists of core and extension. Core is essentially a wiring engine for multiple VMs. The engine uses the IOC (control reversal) and Di (Dependency injection) principles to connect components. Core core is simple and limited in performance. It connects functional units together and provides SPI mechanisms that can interact with extension. Such features as service discovery, reliability, and support for transport protocols are done through extension. Extension ...

Some time ago, I wrote a blog about the topic, but I finished, I think I still did not talk about nature, this article is a sequel. 　　Internet Applications (Web sites or apps), and the essential difference between enterprise applications, should be discussed from the user. The internet is a strange user, the website for them is self-service system (similar to ATM machine), do not need, and can not be mandatory training for them, such as user registration. 　　So they have to be absolutely retarded and try to reduce the cost of learning. Enterprise application is the company's employees, with mandatory, and before, or system before the line, a ...

In addition to the "normal" file, HDFs introduces a number of specific file types (such as Sequencefile, Mapfile, Setfile, Arrayfile, and bloommapfile) that provide richer functionality and typically simplify data processing. Sequencefile provides a persistent data structure for binary key/value pairs. Here, the different instances of the key and value must represent the same Java class, but the size can be different. Similar to other Hadoop files, Sequencefil ...