Java Platform, Micro Edition (Java ME) Interview Questions And Answers - DoAnswers.com

Java ME Platform represents the only truly open solution for building mobile applications for the industry. The technology allows portability of applications between platforms and investments are kept to a minimum through the possibility of reuse. The continuous platform evolution is driven by the increasing demands for capabilities and performance in the industry and assured through the definition of the platform components and APIs in the Java Community Process. The fact that the technology is open for anyone to use the community of developers creating applications for the platform is large and increasing. This assures the continuous improvement and availability of applications for the platform which in turn drives business for everybody involved in the eco-system. On top of this the platform itself represents a high performance and secure platform for mobile applications. The Java ME technology ecosystem evolves around a number of different players in the industry, all of them participating in , and influencing, the continuous improvement of the technology and platform. The end users are constantly demanding new features and capabilities to their services. The content developers adopts the user requirements and creates new appealing services with new capabilities. The OEMs creates new capable devices to host the new services and features and also creates new demands by presenting new capabilities to the end users. Carriers creates the mobile environment to host and deploy services on and also drives the exploration of new business-driving services to the end users. This constant evolution of demands and capabilities is the single most important reason for the success of the Java platform and ensures it will continue to evolve into the future needs of everyone involved in the eco-system.

Java 2, Micro Edition is a group of specifications and technologies that pertain to Java on small devices. The J2ME moniker covers a wide range of devices, from pagers and mobile telephones through set-top boxes and car navigation systems. The J2ME world is divided into configurations and profiles, specifications that describe a Java environment for a specific class of device.

The J2ME Wireless Toolkit is a set of tools that provides developers with an emulation environment, documentation and examples for developing Java applications for small devices. The J2ME WTK is based on the Connected Limited Device Configuration (CLDC) and Mobile Information Device Profile (MIDP) reference implementations, and can be tightly integrated with Forte for Java

The Java Card specification allows Java technology to run on smart cards and other small devices. The Java Card API is compatible with formal international standards, such as, ISO7816, and industry-specific standards, such as, Europay/Master Card/Visa (EMV).

The Java Community Process (JCP) an open organization of international Java developers and licensees who develop and revise Java technology specifications, reference implementations, and technology compatibility kits through a formal process.

The JDBC Optional Package for CDC/Foundation Profile (JDBCOP for CDC/FP) is an API that enables mobile Java applications to communicate with relational database servers using a subset of J2SE's Java Database Connectivity. This optional package is a strict subset of JDBC 3.0 that excludes some of JDBC's advanced and server-oriented features, such as pooled connections and array types. It's meant for use with the Foundation Profile or its supersets.

Java Specification Request (JSR) is the actual description of proposed and final specifications for the Java platform. JSRs are reviewed by the JCP and the public before a final release of a specification is made.

KittyHawk is a set of APIs used by LG Telecom on its IBook and p520 devices. KittyHawk is based on CLDC. It is conceptually similar to MIDP but the two APIs are incompatible.

KJava is an outdated term for J2ME. It comes from an early package of Java software for PalmOS, released at the 2000 JavaOne show. The classes for that release were packaged in the com.sun.kjava package.