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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.
Explain different way of using thread? The thread could be executed by using runnable interface or by inheriting from the Thread class. The former is more advantageous, 'cau
While you declare a variable in a function, the variable can be accessed within that function only. While you exit the function, the variable is destroyed. These variables are ca
Differentiation between a Vector and an array . Explain in Brief about the pros and cons of both?
Compare classes with C++ Some significant points to consider when defining a class in java as you probably noticed from above given skeleton are - There are no global
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minijava to piglet
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Distributed / Network Oriented Java is network friendly -- both in its portable, threaded nature, and since common networking operations are built-in to the Java libraries.
Differentiation between if statement and a switch statement ?
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