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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.
List the precedence table? At last let's add the && , || , & , | and ? operators to the precedence table *, /, % Multiplicative operators +, - Additi
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When wiring beans, if a bean element is embedded to a property tag directly, then that bean is said to the Inner Bean. The disadvantage of this bean is that it cannot be reused any
EJB elements operate inside a container environment and rely heavily on the container to give security. The four key services needed for the security are: 1. Identification :
Specifically, you'll create a program that will hold minutes worked and assign a value. Calculate the value into hours and minutes. Display the result as shown in Figure 2. Reme
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You are to write a program name arrayScaling.java that will randomly generate 5000 integer number raging from 1 - 49 and place them in an array. 1. The program will scale thi
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WHY WE USE JAVA PROGRAMMING LANGUAGE EXPLAIN IT
Differentiation between a Vector and an array . Explain in Brief about the pros and cons of both?
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