Latest Tutorials| Questions and Answers|Ask Questions?|Site Map



Login         

View Questions and Answers by Category

Advertisements


 
Have Programming Question? Ask it here!
 
 
 


krishnarao
java,
2 Answer(s)      6 years and 5 months ago
Posted in : JSP-Interview Questions



Advertisement
View Answers

August 12, 2008 at 3:38 PM



URI - Stands for ?Uniform Resource Indicator?, is a short string of characters that represent the address or location of resources, typically on the internet, and how that resource should be accessed.

URL - (Uniform Resource Locator) The address that defines the route to a file on an Internet server (Web server, FTP server, mail server, etc.). URLs are typed into a Web browser to access Web pages and files, and URLs are embedded within the pages themselves as hypertext links. The URL contains the protocol prefix, port number, domain name, subdirectory names and file name. If a port number is not stated in the address, port 80 is used as the default for HTTP traffic.


August 12, 2008 at 3:45 PM


Hi friend,


URI :

1)(Uniform Resource Identifier) It is address of Internet.
2) A URI is the unique to access the internet resource.
3) It is not a specific file location.
4)It is preferred over the URL (Uniform Resource Locator).

Difference Between Url and URI

URI - Uniform Resource Identifier

It provides only the name of the resource ike in web.xml, in url-pattern
It is used by server to locate the requested resource on the server machine.
It identify a single document.


URL - Uniform Resource Locator

It gives the path of the resource where it was specify.
It is used by Client to send request to the server.
It contain the path (domain name of the server).
A URL is a subset of the URI protocols.

Session API used in Servlets

This is done by calling the getSession method of HttpServletRequest.
HttpSession session = request.getSession(true);

// To set attribute in a session
session.setAttribute(dataName, dataValue);


// To get the value attribute in a session

session.getAttribute(dataName)

Throw :

Before catching an exception it is must to be thrown first.
This means that there should be a code somewhere in the program that could catch the exception.
Use the "Throw" Keyword.

throw new MyException();

throws

For particular exception may be thrown or to pass a possible exception then we use throws keyword.


Difference between throw and throws

1)we want to force an exception then we use throw keyword.
e.g throw new MyException ("can't be divided by zero");
2)throw keyword can also be used to custom exception handling.


1)For particular exception may be thrown or to pass a possible exception then we use throws keyword.
2)throws clause on the method instead of try and catch exception handler.

myMethod() throws MyException {}




Thanks

Vineet


Related Tutorials/Questions & Answers:
java
java  diff bt core java and java
java
java  what is java
Advertisements
Java
Java   Whether Java is pure object oriented Language
java
java  different between java & core java
java
java  explain technologies are used in java now days and structure java
java
java   why iterator in java if we for loop
JAVA
JAVA  how the name came for java language as "JAVA
java
java  what is java reflection
java
java  is java open source
java
what is the size of array in java ?  what is the size of array in java ? what is the mean of finalize in java
java
java   in java does not pointers concept but what is nullpointers in java?   nullpointer is a runtime Exception
java
java  write a java program using filenotfoundexception
java
java   difference between class and interface
java
java  why multiple inheritance is not possible in java
java
java  is java purely object oriented language
java
java  how use java method
java
java  send me java interview questions
java
java  write a program in java to acess the email
java
java  Write a java code to print "ABABBABCABABBA
java
java  why to set classpath in java
java
java  why to set classpath in java
java
java  why to set classpath in java
java
java  give a simple example for inheritance in java
Java
Java  how to do java in command prompt
java
java  sample code for RARP using java
java
java  RARP implementation using java socket
Java
Java  how to draw class diagrams in java
java
java  explain object oriented concept in java
Java
Java   Whether Java is Programming Language or it is SOftware
java
java  what are JAVA applications development tools
java
java  why to set classpath in java
 

 

 

DMCA.com