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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.
how to solve this error
Java output and input is described in terms of an abstract concept named a " stream ", which is a sequence of data. There are 2 types of streams. 1. Byte streams (8 bit
What are the different scopes for Java variables? The scope of a Java variable is explained by the context in which the variable is declared. Therefore a java variable can have
write complete application to play game tictactoe
How to Begin a Variable Name with a Number? If you need to starts a variable name along with a digit, prefix the name you'd like to have (e.g. 8ball) along with an underscore,
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Compare SWING components to the standard AWT .
Data integrity helps to make sure if something is communicate and not tampered with in the mean while when transmission take place. Checksums: Simply inserts the bytes withi
Rational Unified Process (RUP) is a normal framework that may be used to define a development process. The software development life cycle has got 4 parts in the following o
Task back to top Write a JAVA GUI program that would facilitate text chatting/exchanging between two or multiple computers over the network/internet, using the concept of JAVA soc
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