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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.
Each time an object is operated in Java, it goes into the area of memory named as heap. The Java heap is named the garbage collectable heap. The garbage collection may not be force
With publish or subscribe message passing the sending application or client establishes a named topic in the JMS broker or server and publishes messages to this queue. The receivin
Write a code in java to explain the while loop in Java? // This is the Hello program in Java class Hello { public static void main (String args[]) { System.out.print("
A preconfigured JMS object (a resource manager connection factory or a destination) formed by an administrator for the use of JMS clients and placed in a JNDI namespace
This assignment requires you to design, implement and test a program using Java features from the first half of the subject content. You are required to implement in Java all the c
JMX framework can enhance the manageability of your application by 1. Monitoring your application for critical events, performance problems, and error condition statistics. E.g
Write HTML and JavaScript code for the needs shown in the diagram below? When ConvertoUpperCase button is pressed then the entered text is converted to upper case and result is
program for syntax tree
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What do you mean by synchronization and its importance?
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