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What is an Iterator?
Some of the collection classes give traversal of their contents via a java.util.Iterator interface. This interface permits you to walk through a collection of objects, operating on every object in turn.
Remember when using Iterators that they have a snapshot of the collection at the time the Iterator was obtained; generally it is not advisable to modify the collection itself whereas traversing an Iterator.
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
The SwitchAction class gives a means to switch from a resource in one module to another resource in a dissimilar module. SwitchAction is useful only if you have multiple modules in
Question 1: a) What is an "Operating System"? b) Describe the four main computer system components. c) Describe and compare "Parallel Systems" and "Distributed Systems
Corporate Web Support: Worked for CGI as Software Engineer in a team called CWS (Corporate Web Support). We support more than 400 applications for BELL Corporate. Here tas
how to create overloded method?
Elaborate Vector or Object oriented graphics along with at least one example. Object Oriented Graphics are the graphics that are commonly oriented towards the objects and have
Please can you write some codes and their functions too. At least 10! Please
Problem 1 Explain and Define the following concepts with appropriate examples a) Superclass b) Subclass c) Inheritance d) Exceptions e) Stream classes >>Defining and expl
WAP to input a 4 digit no and find greatest using nested if
Java Project Introduction: In this project, you will explore a few sorting algorithms. You will also test their efficiency by both timing how long a given sorting operation take
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