IBM员工面试经历

1.what is oracle.
2.what is major differenece oracle8i and oracle9i.
4.tell me some thing ur self.
5.please tell me about oops.
6.what is single inheritance.
7.what is multiple inheritance.
8.can java support multiple inheritance.
9.what is interface.
10.what is differenec between abstract class and interface.
11.how to u prove that abstrace class cannot instantiate directly.
12.what is differenece between string and stringbuffer.
13.what is immutable
14.how to write a program using sort program.
15 how to write a program using unsort program.
16.what is legacy.
17.what is legacy api
18.what is main difference hashmap and hastable
19.what is main difference between arraylist and vector.
20.what are distributed techonologies.
21.what is difference between procedure and functions.
22.what is jdbc.
23.what are type of drivers.
24.what is platfrom independent
25.what is awt and swing.
26.what is major concepts in oops.
27.why u choose mvc-2 architecture.
28.what is implicit object.
29.how many implicit objects in jsp

IBM英文面试题(附答案)-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
6.one class is inherited by only other one class
7.One class inheriting more than one class at atime
8.No
9.Interface has only method declarations but no defn
10.In abstract class some methods may contain definition,but in interface every method should be abstract
11.As they dont have constructor they cant be instantiated
12.Strings are immutable where as string buffer can be modified
13.Which cant be changed
14-15
Both can be done using javascript
This is for Sort
function SelectTextSort(obj) { // sort by text
var N=obj.options.length;
for (var i=0;i for (var j=i 1;j if ( obj.options[i].text > obj.options[j].text ) {
var i1= (obj.options[i].selected == true ) ? true : false
var j1= (obj.options[j].selected == true ) ? true : false
var q1 = obj.options[j].text;
var q2 = obj.options[j].value;
obj.options[j].text = obj.options[i].text;
obj.options[j].value = obj.options[i].value;
obj.options[i].text = q1;
obj.options[i].value = q2;
obj.options[i].selected = (j1 && true ) ? true : false
obj.options[j].selected = (i1 && true ) ? true : false
}
}
}
return true
}
16.legacy is something that is old in terms of technology/ system
17. the legacy API is now implemented in a plug-in which is part of the CMS and so is no longer documented here.
18.Hash table is synchronised
19.Vector is synchronised
20.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.
21.Fuctions can return value ,procedures cant return value
22.Connecting to DB from java program requires JDBC
23.type1,2,3,4
24.A language is said to be platform independent if it can be run on any machine with out modifying code
25.AWT are heavy weight components and swings are light weight components
26.Abstraction,polymorphism,encapsulation,inheritance
27.In MVC-2 controller is servlet rather than JSP which makes it efficient
28.Implicit objects are a set of Java objects that the JSP Container makes available to developers in each page
29.out,page,session,request,response,application,page context,config