Java Tutorials

311. Developer roles in J2EE

By: aathishankaran : 2007-02-22

Description: During the process of deployment there are three kinds of developer roles.


312. Distributed Multi-tiered Applications

By: aathishankaran : 2007-02-22

Description: The J2EE platform uses a multi-tiered distributed application model. Application logic is divided into components according to function, and the various application components that make up a J2EE application are installed on different machines depending on the tier in the multi-tiered J2EE environment to which the application component belongs.


313. J2EE Components

By: aathishankaran : 2007-02-22

Description: J2EE applications are made up of components. A J2EE component is a self-contained functional software unit that is assembled into a J2EE application with its related classes and files and that communicates with other components


314. J2EE Containers

By: aathishankaran : 2007-02-22

Description: Normally, thin-client multi-tiered applications are hard to write because they involve many lines of intricate code to handle transaction and state management, multithreading, resource pooling, and other complex low-level details.


315. Java Transaction API

By: aathishankaran : 2007-02-22

Description: The Java Transaction API ("JTA") provides a standard interface for demarcating transactions. The J2EE architecture provides a default auto commit to handle transaction commits and rollbacks.


316. JavaBeans Component Architecture

By: aathishankaran : 2007-02-22

Description: The server and client tiers might also include components based on the JavaBeans component architecture (JavaBeans component) to manage the data flow between an application client or applet and components running on the J2EE server or between server components and a database. JavaBeans components are not considered J2EE components by the J2EE specification.


317. Overview of J2EE

By: aathishankaran : 2007-02-22

Description: Today, more and more developers want to write distributed transactional applications for the enterprise and leverage the speed, security, and reliability of server-side technology. If you are already working in this area, you know that in today's fast-moving and demanding world of e-commerce and information technology


318. Packaging J2EE Components

By: aathishankaran : 2007-02-22

Description: J2EE components are packaged separately and bundled into a J2EE application for deployment. Each component, its related files such as GIF and HTML files or server-side utility classes, and a deployment descriptor are assembled into a module and added to the J2EE application.


319. A simple Box class in Java

By: aathishankaran : 2007-02-20

Description: Here is a class called BOX that defines three instance variables: width, height, and depth. Currently, Box does not contain any methods


320. Encapsulation

By: aathishankaran : 2007-02-20

Description: Encapsulation is the mechanism that binds together code and the data manipulates, and keeps both safe from outside interference and misuse. One way to think about encapsulation is as protective wrapper that prevents the code and data from being arbitrarily accessed by the other code defined outside the wrapper.