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The Java Collections Framework is a library of classes and interfaces for working with collections of objects. A collection is an object which can store other objects, called elements. Collections provide methods for adding and removing elements, and for searching for a particular element within the collection.
JAVA COLLECTIONS FRAMEWORK A collection is an object that groups multiple objects. Collections are used to store, re-trieve and manipulate data. Collections usually represent natural groupings, e.g., a Bridge hand (a collection of cards) or an address book (name to address mappings).
In this article from my free Java 8 course, you will be given a high-level introduction of the Java Collections Framework (JCF). The term ‘Collection’ has several meanings, unfortunately.
Collections are used to store, retrieve, manipulate, and communicate aggregate data. Typically, they represent data items that form a natural group, such as a poker hand (a collection of cards), a mail folder (a collection of letters), or a telephone directory (a mapping of names to phone numbers).
Collection interface: The root of the JCF hierarchy. Represent a group of objects. Operations include: add/remove/iterate. Collections class: provides many static methods, including: shuffle, max, min, reverseOrder, sort, frequency, ... Examine API for Collections and Collection...
The Java Collections Framework. A coupled set of classes and interfaces that implement commonly reusable collection data structures. Designed and developed primarily by Joshua Bloch (currently Chief Java Architect at Google).
Java Collections Framework. The JCF is a unified architecture for representing & manipulating collections. See docs.oracle.com/javase/8/docs/technotes/guides/collections. The JCF is a unified for representing collections. A collection is represents a group. e.g., an ArrayList<Point>
