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Explain the both HashSet and TreeSet?
HashSet is an unordered, unsorted Set.
It's a Collection set which restrict duplicate elements and also repositioning of elements.
It implements Set interface and extends AbstractSet.
Uses hash code of object being inserted.
TreeSet is a Set implemented when we want elements in a sorted order.
Sorting of element is done according to natural order of elements or by help of comparator provided at creation time.
Cryptography, the study of secret writing, has been around for a very long time, from simplistic techniques to sophisticated mathematical techniques. No matter what the form howeve
The Application context module makes spring a framework. This module extends the concept of BeanFactory, giving support for internationalization (I18N) messages, application lifecy
Draw an inheritance hierarchy to represent a shoe object. The base class should have derived classes of Dress Shoes, Tennis Shoes and Boots.
We need an OpenGL - based visualisation of an OBJ-File that was created out of Maya3D. (important: we have to use OpenGL with Java - JOGL) In other words: we have an OBJ-file (a
What is an object's lock and which objects have locks? An object's lock is a mechanism that is used by multiple threads to get synchronized access to the object. A thread may i
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Java Virtual Machine & Runtime Environment Basic Concept When you write a program in C++ it's called source code. C++ compiler converts this source code into the machine c
Explain switch statement in java language? Switch statements are shorthands for a certain type of if statement. It is not common to see a stack of if statements all related
The formula for resistors linked in parallel is a little more complex. Given two resistors along with resistances R1 and R2 linked in parallel the equivalent resistance is given th
Data integrity helps to make sure if something is communicate and not tampered with in the mean while when transmission take place. Checksums: Simply inserts the bytes withi
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