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In order to provide portable and reliable EJB elements, the following restrictions apply to EJB code implementation:
1. Avoid using static non-final fields. Defining all static fields in EJB component as final is recommended. This enables the EJB container to provide instances across multiple JVMs.
2. Avoid starting a using thread or new thread synchronization.
3. Avoid using Swing or AWT functionality. EJBs are server side business elements.
4. Avoid using java.io operations or file access. EJB business elements are meant to use source managers such as JDBC to retrieve and store application data. But deployment descriptors may be used to store .
5. Avoid listening or accepting to socket connections. EJB components are not meant to give network socket functionality. However the specification lets EJB elements act as RMI clients or socket clients.
6. Avoid using the reflection API of java. This restriction enforces Java security.
How do I write a java program that enters a six digit number and takes the sum of the six digits?
The method should printout line numbers from 1 to howmany in the previous format -ONLY WHEN is divisble by 3 but is should not oupt more then 3 numbers on the line. input 1 outpu
what are applets
Give an Examples of Access Protection ? This is how the Car class would almost certainly be written in practice. Remember that all the fields are now declared private, and the
Write a Java class that generates a random integer (between 1 and 250). Call the class GenKeys. GenKeys should have a least one method that returns the integer random number. Gen K
Give an example for Passing Arguments to Methods ? class Car { String licensePlate = ""; // e.g. "New York 543 A23" double speed = 0.0; // in kilometers per h
Develop a code for fibonacci series
Normal 0 false false false EN-IN X-NONE X-NONE
In Java not all classes must be described separate from each other. You may put the definition of one class under the definition of another class. The class inside class is called
write a java program implementing multithreading concept in hotel management
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