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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.
Define the difference between StringBuffer and String class?
codes to create boggle game
What limitations are placed on method overriding ?
What Can an Applet Do? An applet can: • Draw pictures on a web page • Create a new window and draw in it. • Play sounds. • Receive input from the user by the keyboard or
The non-final functions are clone (), finalize (), toString (), equals () , hashCode () and. The other methods like wait (), getClass (), notifyAll (), notify () etc are final
logical operators
A proxy is an object that is formed after applying advice to a target object. When you think of client objects the target object and the proxy object are the similar.
I am having an combox box and values are retrieved from the database having inputs and labels i want to created the dynamic form accroding to user input on combox box values
class Writer extends Client { // additional members private boolean technical = false; private boolean government = false; private boolean international = false; pri
What is an intelligent system? Intelligent systems are the programs established to perform complicated jobs in which reflect human brain and thoughts. If the algorithms are too m
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