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DoJa profile is a
Java Java (; id, Jawa, ; jv, ꦗꦮ; su, ) is one of the Greater Sunda Islands in Indonesia. It is bordered by the Indian Ocean to the south and the Java Sea to the north. With a population of 151.6 million people, Java is the world's mo ...
application environment specification for DoCoMo's
i-mode NTT DoCoMo's i-mode is a mobile internet (distinct from wireless internet) service popular in Japan. Unlike Wireless Application Protocols, i-mode encompasses a wider variety of internet standards, including web access, e-mail, and the pa ...
mobile phone A mobile phone, cellular phone, cell phone, cellphone, handphone, hand phone or pocket phone, sometimes shortened to simply mobile, cell, or just phone, is a portable telephone that can make and receive calls over a radio frequency link whi ...
. DoJa is based on the
Java ME Java Platform, Micro Edition or Java ME is a computing platform for development and deployment of portable code for embedded and mobile devices (micro-controllers, sensors, gateways, mobile phones, personal digital assistants, TV set-top ...
CLDC The Connected Limited Device Configuration (CLDC) is a specification of a framework for Java ME applications describing the basic set of libraries and virtual-machine features that must be present in an implementation. The CLDC is combined with one ...
API that is defined in the
Java Community Process The Java Community Process (JCP), established in 1998, is a formalized mechanism that allows interested parties to develop standard technical specifications for Java technology. Anyone can become a JCP Member by filling a form available at thJCP w ...
(JCP). DoJa is a profile defined by NTT DoCoMo to provide communications and other input-output processing, user interface (GUI) and other application features/functions unique to
i-mode NTT DoCoMo's i-mode is a mobile internet (distinct from wireless internet) service popular in Japan. Unlike Wireless Application Protocols, i-mode encompasses a wider variety of internet standards, including web access, e-mail, and the pa ...
, and extension libraries defined by individual phone terminal makers to add original functions. However, in contrast with other
Java ME Java Platform, Micro Edition or Java ME is a computing platform for development and deployment of portable code for embedded and mobile devices (micro-controllers, sensors, gateways, mobile phones, personal digital assistants, TV set-top ...
profiles like
Mobile Information Device Profile Mobile Information Device Profile (MIDP) is a specification published for the use of Java on embedded devices such as mobile phones and PDAs. MIDP is part of the Java Platform, Micro Edition (Java ME) framework and sits on top of Connected Lim ...
(MIDP) or
Information Module Profile IMP stands for the ''Information Module Profile''. It is a specification put out by Sun Microsystems for the use of Java on embedded devices with very limited displays. It is a subset of the Mobile Information Device Profile. IMP is part of the Jav ...
(IMP), DoJa is not defined as a
Java Specification Request The Java Community Process (JCP), established in 1998, is a formalized mechanism that allows interested parties to develop standard technical specifications for Java technology. Anyone can become a JCP Member by filling a form available at thJCP w ...
(JSR), hence it is often called a "proprietary" Java ME profile. DoJa allows i-mode to offer more dynamic and interactive content than conventional HTML-based i-mode content. Java for i-mode consists of support for a version of CLDC and a version of the DoJa profile. CLDC support can be 1.0 or 1.1 depending on the handset. The DoJa profile was originally created for the local Japanese market with version 1.0 and version 2.0 more or less corresponding to MIDP 1.0 and MIDP 2.0. For the market outside Japan a new API has been created, which is referred to as the Overseas Edition. Currently DoJa 1.5oe and DoJa 2.5oe are implemented on handsets sold in Europe. (The first DoJa handset with DoJa1.5oe is N341i launched in 2003 from
NEC is a Japanese multinational information technology and electronics corporation, headquartered in Minato, Tokyo. The company was known as the Nippon Electric Company, Limited, before rebranding in 1983 as NEC. It provides IT and network soluti ...
, and the first DoJa 2.5 handset is M430i launched in the beginning of 2005 from
Mitsubishi The is a group of autonomous Japanese multinational companies in a variety of industries. Founded by Yatarō Iwasaki in 1870, the Mitsubishi Group historically descended from the Mitsubishi zaibatsu, a unified company which existed from 1870 ...
.) The DoJa Profile provides for use with i-mode extension library (Java for i-mode profiles), including user interfaces and HTTP communications.


DoJa Profiles

"Star" is the successor to DoJa, rather than being part of it, with access to modern hardware and services such as the accelerometer.


References

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External links


NTT Docomo i-appli Development Page

DoJa developers mailing list archive
Java device platform