J2EE英文面试题及答案

is oracle.

is major differenece oracle8i and oracle9i.

me some thing ur self.

se tell me about oops.

is single inheritance.

is multiple inheritance.

java support multiple inheritance.

is interface.

is differenec between abstract class and interface.

to u prove that abstrace class cannot instantiate directly.

is differenece between string and stringbuffer.

is immutable

to write a program using sort program.

15 how to write a program using unsort program.

is legacy.

is legacy api

is legacy interface.

is main difference hashmap and hastable

is main difference between arraylist and vector.

is struts framework.

are distributed techonologies.

is advantage and disadvantage of distributed techonologies.

is main difference between jsp and servlets.

is difference between procedure and functions.

is jdbc.

are type of drivers.

is type 4 driver.

to collect requuirements form u r client.

h process use in ur project.

is deployment descriptor.

is heirarchy of files in struts.

se draw struts frame wrok.

se draw j2ee architecture.

se draw mvc-2 architecture.

se draw that how design op module.

to find a file on linux.

to configure weblogic8.1 on linux.

you use struts framework in ur project.

is platfrom independent

is awt and swing.

is heavy wieght components.

is feature of weblgoic8.1.

you choose application server on linux and database server on aix.

se tell me about ur project.

is major concepts in oops.

u choose mvc-2 architecture.

is implicit object.

many implicit objects in jsp

choose weblogic8.1 other than any applicationserver.

is water fall model vs sdlc

is use of dataflowdiagrams

t is ip in ur project.

about reception module

　　【参考答案】

1. Oracle is an RDBMS product with DDL and DML from a company called Oracle Inc.

2. Difference between 8i and 9i is given in the Oracle site

3. Question not available

4. Something

5. oops is Object Oriented Programming

is single inheritance.

ans:one class is inherited by only other one class

is multiple inheritance.

ans:One class inheriting more than one class at atime

java support multiple inheritance.

ans:No

is interface.

ans:Interface has only method declarations but no defn

is differenec between abstract class and interface.

ans:In abstract class some methods may contain definition,but in interface every method should be abstract

to u prove that abstrace class cannot instantiate directly.

ans:As they dont have constructor they cant be instantiated

is differenece between string and stringbuffer.

ans:Strings are immutable where as string buffer can be modified

is immutable

ans:Which cant be changed

to write a program using sort program.

15 how to write a program using unsort program.

ans: Both can be done using javascript

This is for Sort

function SelectTextSort(obj) { // sort by text

var N=th;

for (var i=0;i

for (var j=i+1;j

if ( ons[i] > ons[j] ) {

var i1= (ons[i]cted == true ) ? true : false

var j1= (ons[j]cted == true ) ? true : false

var q1 = ons[j];

var q2 = ons[j]e;

ons[j] = ons[i];

ons[j]e = ons[i]e;

ons[i] = q1;

ons[i]e = q2;

ons[i]cted = (j1 && true ) ? true : false

ons[j]cted = (i1 && true ) ? true : false

}

}

}

return true

}

is legacy.

is legacy api

is legacy interface.

ans: legacy is something that is old in terms of technology/ system

is main difference hashmap and hastable

ans:Hash table is synchronised

is main difference between arraylist and vector.

ans:Vector is synchronised

is struts framework.

are distributed techonologies.

distributed technologies means any technology / s/w program that are having many components in multiple environments that interact with each other depending on the functional requirements and design.

is advantage and disadvantage of distributed techonologies.

overdependance on single platform / single language is avoided. Application can be built flexible to meet requirements. Division of labour is possible. Best of all the technologies and platforms can be optimally utilized. Complexity of requirements can be reduced.

is difference between procedure and functions.'

ans:Fuctions can return value ,procedures cant return value

is jdbc.

ans:Connecting to DB from java program requires JDBC

are type of drivers.

type1,2,3,4

to collect requuirements form u r client.

is not a job of a technical person. It is better for a BA to do it.

h process use in ur project.

Generally u can say:

Project related process: Analysis, Design, Sign-off Documents, Implementation, Integration, Testing, UAT

Work related process:

Technical Design, Work Allocation, Code Review Checklist, Unit Test Form will be prepared by the Project Lead and given to the developer.

Developer prepares the Unit Test Case

Implements Code, Performs Test

Submits Code through CVS / VSS

Submits documents along with Release Checklist to the tester / leader.

is deployment descriptor.

ans:Which contains the infrnmation like which file to be used

is platfrom independent

ans:A language is said to be platform independent if it can be run on any machine with out modifying code

is awt and swing.

ans:AWT are heavy weight components and swings are light weight components

is major concepts in oops.

ans:Abstraction,polymorphism,encapsulation,inheritance

u choose mvc-2 architecture.

ans:In MVC-2 controller is servlet rather than JSP which makes it efficient

is implicit object.

ans:Implicit objects are a set of Java objects that the JSP Container makes available to developers in each page

many implicit objects in jsp

ans:out,page,session,request,response,application,page context,config