Question { CTS, 14173 }

What causes Out of Memory exception?

Answer

exception is an event and error that raised to the program
and break the flow of statement.

Uncheacked exception :- airthmetic error

chacked exception:- run time error

unchecked exception :-

1- airthmetic exception.
2- array index of bound exception.
3- array stored in exception
4- class cost exception
5- illegal argument exception
6- null pointer exception
7- negative null size of array exception
8- array found exception.

checked exception:-

1- class not found exception.
2- illegle accesss exception
3- instantation exception.
4- intrupted exception
5- no such method exception
6- no such field exception

Question { IBM, 12748 }

What is the difference between Web Server and Application
Server

Answer

Web server:- are those server which are run and exicute the
web based application.

Application server:- are those server which are run and
exicute web based application , application server and stand
alone application.

Question { CTS, 42483 }

Can i have abstract class with no abstract methods?

Answer

an abstract class contain the abstract methods and concerete
method
Abstract method:- are those method which have no body.

concrete Method:- are those method which have a body.