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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.
Can a human doctor be replaced through an Expert System? Give reasons to support your answer. Expert System is a computer system that simulates the knowledge and expertise of a
Write a program on Filling Rectangles ? The drawRect() method draws an open rectangle, a box if you prefer. If you need to draw a filled rectangle, use the fillRect() method. O
There are two significant bean lifecycle methods. The first one is setup which is called when the bean is loaded on to the container. The second method is the teardown method which
Determine about the Wrapper Classes Every primitive data type has a corresponding object (wrapper class). These wrapper classes provides extra functionality (conversion, size c
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 takes and count
RMI is a set of APIs that permits to build distributed applications. RMI uses interfaces to explain remote objects to turn local method invocations into remote method invocations.
One of the principal benefits of JMS messaging is that it's asynchronous. Thus not all the pieces require to be up all the time for the application to function as a whole.
Too many function invocations between the server and the client will lead to network overhead, tight coupling due to dependencies between the server and the client, misuse of serve
Question: (a) Java does not support multiple inheritance but does provide the concept of ‘interface'. Explain how interfaces can help a programmer to implement multiple inheri
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