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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 the user defined Exceptions. User Defined Exceptions are the exceptions which are defined by user for specific purposed. This enables custom exceptions to be generated
develop a one player multiple choice math game
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What is JavaServer Faces navigation model? Ans) A mechanism for describing the sequence in which pages in a JavaServer Faces application are shown.
Program for Randomly Generated 3- Digit Number Matches This assignment demonstrates your ability to use basic Java syntax including selection and looping statements. You will
Question 1: (a) Describe two reasons driving the termination of processes. (b) Discuss the five main steps the OS would implement once it has decided to create a new proc
i want the program
Elaborate the ‘+ ' operator and its constraints along with the help of examples? The + Operator Used on Strings. The + operator could also be used to add string variables or te
Example: You have a class named "Set" in a project folder "e:\myProject" and package named com.zxy.client, will you be able to compile and execute it as it is
1. Which of the following are not valid Java identifiers, and why? (a) wolVes (b) United(there is only one) (c) 87 (d) 5 3 (e) Real ale (f) isFound?by 2. A class Television
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