DATABASE FUNDAMENTALS
BASICS OF BIG DATA
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A group of objects
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A group of classes
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A group of interfaces
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None of the mentioned
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Detailed explanation-1: -A collection is an object that represents a group of objects (such as the classic Vector class). A collections framework is a unified architecture for representing and manipulating collections, enabling collections to be manipulated independently of implementation details.
Detailed explanation-2: -A set is a collection of objects. The objects are called the elements of the set. If a set has finitely many elements, it is a finite set, otherwise it is an infinite set. If the number of elements in a set is not too many, we can just list them out.
Detailed explanation-3: -The Collection in Java is a framework that provides an architecture to store and manipulate the group of objects. Java Collections can achieve all the operations that you perform on a data such as searching, sorting, insertion, manipulation, and deletion. Java Collection means a single unit of objects.
Detailed explanation-4: -(b) package. (c) java object. (d) none of these. Correct answer: (a) collection object. Object which can store group of other objects is called collection object.
Detailed explanation-5: -5. What is Collection in Java? Explanation: A collection is a group of objects, it is similar to String Template Library (STL) of C++ programming language.