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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.
Enumerate the concept of write once run anywhere - JAVA Java has introduced concept of WORA (write once run anywhere). When you write a java program it is called source code of
Define : Authorization is the process by which a program calculates whether a given identity is permitted to access a source such as an application component or a file. Now that y
Give a example of Using toString() Methods ? Below is a version of CarTest in which uses toString() and System.out.println() instead of printing the fields in a straight line
Alia is appearing for the board exams. In order to qualify for the next class Alia need to get exactly X credits. In current semester Alia has to study N number of subjects, and ev
I need to draw cars and trucks and background with road and a house with sky. I have to use Vehicle class as a parent class. To draw pictures, i should draw fun things coming up
Write a bouncing ball video game. The game is similar to the one described and depicted in Figure of the text book. The balls bounces within the screen where the two horizontal wal
1. Arrays and working with arrays
While you declare a variable in a function, the variable can be accessed within that function only. While you exit the function, the variable is destroyed. These variables are ca
Explain the term Naming Packages in details? As you saw previously name space conflicts arise if two pieces of code declare the similar name. Java remains track of what belongs
This program will help you start doing GUI programming, and is a good example of 2D arrays. Mine Sweeper is a classic game that is played on a 2D grid of cells. At the beginning of
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