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1.Lifecycle Management : Individual enterprise beans do not accept to explicitly manage process allocation, object activation, thread management, or object destruction. The EJB container automatically accepts the object lifecycle on behalf of the enterprise bean.
2. State Management : Individual enterprise beans do not use to explicitly restore or save conversational object state between function calls. The EJB container automatically provides object state on behalf of the enterprise bean.
3. Security : Individual enterprise beans do not have to explicitly authenticate users or check authorization levels. The EJB container automatically gives all security checking on behalf of the enterprise bean.
4. Transactions : Individual enterprise beans do not accept to explicitly specify transaction demarcation code to participate in distributed transactions. The EJB container may automatically manage the start, commitment, enrolment, and rollback of transactions on behalf of the enterprise bean.
5. Persistence : Individual enterprise beans do not need to explicitly store or retrieve persistent object data from a database. The EJB container may automatically provide persistent data on behalf of the enterprise bean.
What is final class? A final class can't be extended ie., final class might not be subclassed. A final method can't be overridden when its class is inherited. You can't alter v
Object Oriented Programming Java is basically object oriented. Each line of code you write in java should be inside a class (not counting import directives). OOP fundamental
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Explain function arguments with the help of an example? Arguments on a function are comma separated list of data enclosed within braces. It describes interface among the web pa
Describe the java.lang package ? Each package describes a number of classes, exceptions, interfaces, and errors. For instance, in Java 1.1 the java.lang package holds these:
Staging areas that have messages those have been sent and are waiting to be read. Note that, contrary to what the name queue suggests, messages don't have to be delivered in the or
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