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Java has two kinds of exceptions:
1. Checked exception: handled from java.lang.Exception but not java.lang.RuntimeException.
2. Unchecked exception: handled from java.lang.RuntimeException thrown by JVM.
EJB has two kinds of exceptions:
1. System Exception : is an unchecked exception produced from java.lang.RuntimeException. An EJBException is an unchecked exception, which is started from java.lang.RuntimeException.
2. Application Exception : is generic to an application and thrown because of violation of business rules. An Application Exception is a checked exception that is either described by the bean developer and does not import java.rmi.RemoteException.
A System Exception is given by the system and is not recoverable. Because the System Exceptions are unpredictable when they occur, the EJB container is the only one responsible for trapping the System Exceptions. The container usually wraps any RuntimeException in RemoteException, which subsequently puts thrown to the caller. In addition to intercepting System Exception the container can give the errors.
Develop a simple polling (voting) web application according to the following specifications: Initially a page should be presented to the user where he can enter his/her name
pls telme source code for Padovan String
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1. Lifecycle Management : Individual enterprise beans do not accept to explicitly manage process allocation, object activation, thread management, or object destruction. The EJ
A BeanFactory is like a factory class that having a collection of beans. The BeanFactory holds Bean Definitions of multiple beans within itself and then instantiates the bean whene
how to write a program to assign value of variable age and print if person is major.
differende between action listener and event listener
Question 1 Write a program in Java to find the highest of any five numbers. How do you compile and execute this Java program? Question 2 Write a program to explain the Except
write a program to find the minimum no of colors to fill a board where some of the elements of different color are already placed.
Struts framework is an open-source framework for producing the web applications in Java EE, based on MVC-2 architecture. It uses and extends the Java Servlet API. Struts are robust
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