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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.
Consider the following code? What input is needed for x in order for the sum variable that is output at the end of the code to be 12 ? (In other words: what do I need to make X be
Aspect-Oriented Programming (AOP) represents OOP (Object Oriented Programming) by giving the developer to dynamically change the static OO model to make a system that can
how to program
The series of steps followed by an application is known its life cycle. A JSF application typically follows six steps in its life. 1. Restore view phase 2. Apply request valu
What is the output of the following code: for (i=0; i { document.write("The number is " + i); document.write(" "); } Output The number is 0 The number is 1 The number i
What are the Sub categories of Artificial Intelligence? Briefly explain any two. 1. Robotics : These are the machines that are computer programmed and perform work that was pr
What is the Comparable interface? Comparable interface is used to sort arrays and collections of objects using collections.sort() and java.utils. Objects of the class implement
Your task is to design a scheduler for the Sheridan Rail Corporation which keeps track of all daily scheduled trips for the railway. Users can add new trips as well as perform sea
What can you do with an exception once you've caught it? 1. Fix the difficulty and try again. 2. Do anything else instead. 3. Exit the application along with System.exit() 4
Explain Code and Document Bases ? If you don't know the exact URL of the image, but you do know its name and in which it's in the similar directory as the applet, you can use
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