Java Collections Framework Documentation

The Java Collections Framework 21 Outcomes By the end of this chapter you should be able to use the ArrayList class to store a list of objects use the HashMap class to store objects in a map use the HashSet class to store a set of objects use the enhanced for loop and the forEach loop to scan through a collection

Any group of individual objects that are represented as a single unit is known as a Java Collection of Objects. In Java, a separate framework named the quotCollection Frameworkquot has been defined in JDK 1.2 which holds all the Java Collection Classes and Interface in it.. In Java, the Collection interface java.util.Collection and Map interface java.util.Map are the two main quotroot

4 Overview of the Java Collections Framework The JCF is a unified architecture for representing amp manipulating collections See

The Java Collections Framework aims to overcome these issues by providing high-performance implementations of common data structures. These allow you to focus on writing the application logic instead of focusing on low-level operations. According to the Java documentation, quotA collection is an object that represents a group of objects.

The Java 2 platform includes a new collections framework. A collection is an object that represents a group of objects The API documentation for these classes describes precisely how each method is implemented so the implementer knows which methods should be overridden, given the performance of the quotbasic operationsquot of a specific

java.util.Collection class and interface hierarchy Java's java.util.Map class and interface hierarchy. The Java collections framework is a set of classes and interfaces that implement commonly reusable collection data structures. 1Although referred to as a framework, it works in a manner of a library.The collections framework provides both interfaces that define various collections and

The Java platform includes a collections framework. 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. The primary

Where is the Java Collections Framework? Package java.util. In this lecture we will survey the interfaces, abstract classes and classes for linear data structures provided by the Java Collections Framework. We will not cover all of the details e.g., the exceptions that may be thrown. For additional details, please see

The Collections Framework was first introduced in Java SE 2, in 1998 and was rewritten twice since then in Java SE 5 when generics were added in Java 8 when lambda expressions were introduced, along with default methods in interfaces. These two are the most important updates of the Collections Framework that have been made so far.

The documentation for the polymorphic algorithms contained in this class generally includes a brief description of the implementation. This class is a member of the Java Collections Framework. Since 1.2 See Also Collection, Set, List, Map Field Summary. Fields Modifier and Type Field Description static List EMPTY_LIST