Skip to main content

Mobile Computing & Wireless Application Development - J2EE -

Wireless application development has the following characteristics:
  • multi-platform and multi-device support, since no single device can serve entire organization's needs
  • multi-wireless network (especially wide area) support
  • multi-backend application and database support
  • integration with web application server platforms
There are a number of application platforms for supporting mobile applications.  However, Java Enterprise Edition (J2EE) does support multiple operating system platforms. It is becoming an important application development platform for non-Microsoft environments.  In fact, IBM's Websphere application server utilizes J2EE. Current (01/20001) version of J2EE is 1.2. New version of J2EE 1.3 has stronger XML support.
Expected features in J2EE 1.3
  • Stronger Java XML parsing
  • Connector specification for integration with back-end applications
  • Enterprise Java Beans 2.0, including message-driven beans through Java message beans
  • XML view of Java Server Pages
  • Improved custom tag library APIs
Resources & Vendor Products
  • VisionAir's DRE Wireless Gateway - based on an open architecture
  • Also do a keyword search on our home page for more J2EE and J2ME related news on Goforecam website.
Goforexam Advisory:  J2EE is gaining gradual acceptance as an application development platform of choice. Business application developers should also consider higher-level tools available from IBM, Oracle, Sybase iAnywhere, Microsoft, @Hand, etc.. The latter category of tools continue to have superior backend integration with legacy systems from these vendors. If these higher-end tools are based on Java or have hooks into Java beans and Java functional modules from other vendors, it becomes easier to  utilize Java-based software platform from multiple vendors.

Comments

Popular posts from this blog

CIVIL SERVICES' (I.A.S.) EXAMINATION

The Union Public Service Commission (U.P.S.C.)  conducts Civil Services' Examination once a year in two stages. The Preliminary Examination (Objective Type) for selection of candidates for the Main Examination is held in the month of May. The Civil Services Main Examination  is held in the months of October/November. Blank application forms and other particulars are published in the Employment News, generally in the month of December. The last date for the submission of applications to the Secretary, Union Public Service Commission, Dholpur House, Shahjahan Road, NewDelhi-11001 1 is usually the last week of January of the year of examination. The Combined Civil Services Examination is conducted for Recruitment to the following Services/Posts: 1. Indian Administrative Service. 2. Indian Foreign Service. 3. Indian Police Service. 4. Indian P & T Accounts & Finance Service, Group 'A'. 5. Indian Audit and Accounts Service, Group 'A'. 6. Indian Customs and Centr

AGRICULTURAL SCIENTIST RECRUITMENT BOARD

Agricultural Research Service National   Eligibility  Test/ Senior Research Fellowship Examination  The Agricultural Scientists Recruitment Board (ASRB)  holds a Competitive Examination for recruiting Scientists of the ARS in the pay scale of Rs. 8,000-13,500 in the ICAR Institutes, combined with National Eligibility Test (NET) for recruitment of Lecturers and Assistant Professors by the State Agricultural Universities (SAUS) and for award of ICAR Senior Research Fellowships. The selected candidates for Agricultural Research Service must serve in the institutes to which they are posted until they find appointment for higher positions through selection at other institutes. (i) Candidates successful in ARS are appointed as Scientists in the Indian Council of Agricultural Research in the pay scale of Rs. 8,000-13,500. (ii) Candidates clearing the National Eligibility Test are recommended to various State Agricultural Universities who will consider them for appointment as Lecturers or A

Predict the output or error(s) for the following:

1 . void main(){ int const * p=5; printf("%d",++(*p)); } Answer: Compiler error: Cannot modify a constant value. Explanation: p is a pointer to a "constant integer". But we tried tochange the value of the "constant integer". 2. main() {  char s[ ]="man"; int i;  for(i=0;s[ i ];i++) printf("\n%c%c%c%c",s[i],*(s+i),*(i+s),i[s]); } Answer: mmmm aaaa nnnn Explanation: s[i], *(i+s), *(s+i), i[s] are all different ways of expressing the same idea. Generally array name is the base address for that array. Here s is the base address. i is the index number/displacement from the base address. So, indirecting it with * is same as s[i]. i[s] may be surprising. But in the case of C it is same as s[i]. 3 . main(){  float me = 1.1;  double you = 1.1;  if(me==you) printf("I love U"); else printf("I hate U"); } Answer: I hate U Explanation : For floating point numbers (float, double, long double)