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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.
In preemptive scheduling, the highest priority task executes until it enters the waiting or dead states or a higher priority task comes into existence. In time slicing, a task i
what is thread?
Write a program in Javascript that will read in an XML file. This file will contain details of devices maintained by the IT department of an organisation including an ID number, de
Colossus has just purchased a computer for its new automated reservation system. You have been asked to program the new system. You are to write a program to assign seats on ea
What happens to the static fields of a class during serialization? There are three exceptions in which serialization does not necessarily read and write to the stream. These
1) Write a function that uses recursion that converts a decimal number to octal (base 8). The function should accept a single integer and return a String containing the base 8 equi
A device for validating the data a user inputs to a JavaServer Faces UI component.
What is an abstract class? Abstract class must be extended/subclassed (to be useful). It serves as a template. A class that is abstract may not be instantiated (ie. you may not
How you Returning Values From Methods in java ? It's frequent meaningful to have a method return a value to the class which is known as it. This is accomplished through the ret
Consider the following C++ template class. #include using namespace std; template class SortedList { public: SortedList() {size = 0;} void insert(T item); friend ostrea
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