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2023年12月18日发(作者：音乐播放器代码大全)

coursera ibm what is data science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 a time

java support multiple inheritance.

ans:No

is interface.

ans:Interface has only method declarations but no deft

is difference 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 abs trace class cannot instantiate directly.

ans:As they don’t have constructor they cant be instantiated

is difference between string and :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 unsorted program.

ans: Both can be done using java script

This is for Sort

function Select Text Sort(obj) { // sort by text

var N=;

for (var i=0;i

for (var j=i+1;j

if ( s[i].text > s[j].text ) {

var i1= (s[i].selected == true ) ? true : false

var j1= (s[j].selected == true ) ? true : false

var q1 = s[j].text;

var q2 = s[j].value;

s[j].text = s[i].text;

s[j].value = s[i].value;

s[i].text = q1;

s[i].value = q2;

s[i].selected = (j1 && true ) ? true : false

s[j].selected = (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 hash map and has table

ans:Hash table is synchronized

is main difference between array list and :Vector is

synchronized

is struts framework.

are distributed technologies.

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 technologies.

Overdependent 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:Functions 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 requirements form u r client.

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

process use in our 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 information like which file to be used

is platform 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,con-fig


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