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J2EE prepares use of the JNDI interface to access different resources like JMS, JDBC, EJB etc. The client finds up for these resources through the JNDI look-up. The JNDI look like is expensive because the client requires getting a network connection to the server first. So that look-up process is redundant and expensive.
To avoid this redundant and expensive process, service objects may be cached when a client process the JNDI look-up for the first time and redefine that service object from the cache for the subsequent look-ups. The service locator pattern imports this technique.
Are constructors inherited ? Can a subclass call the parent class constructor and When?
What is heuristic? Heuristic is a procedure which commonly, but not always, works or that provides nearly the right answer.
What do we mean by interfaces ?
No, java is not fully object oriented language due to it does not support "multiple inheritance" and "pointers" which are used in C++. But, by using Interfaces we can execute multi
Write a function that draws a cow at a certain location on the screen, and use the function to draw a herd of cows
Objectives: socket programming in Java: TCP Exercises: Goal: In this project we will develop a Web server in two steps. In the end, you will have built a multi-threaded Web ser
Why is an Interface be able to extend more than one Interface but a Class can't extend more than one Class? Basically Java doesn't permit multiple inheritances, so a Class is r
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Problem statement Part 1 Write an aspect that counts different kinds of method calls in a Java program. Your aspect should meet the following requirements: The aspect should ma
Java has some bugs in its applets. Java team stated that they have zero tolerance over security features and subsequent editions of Java are managing Bug free environment. Some of
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