Essay About Collection Framework Design Concerns And End Of This Chapter

Collections in Java
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Collection Framework
Introduction to the Collections Framework
Collection Interfaces
Iterator Interface
Group Operations
AbstractCollection Class
Collection Framework Design Concerns
Set Interface
HashSet, TreeSet Classes
List Interface
Map interface
Sorting
Historical Collection Classes
Objective
At the end of this chapter, you will be able to:
Learn about the implementation of Collection Interfaces:
Understand the Iterator Interface and Group Operation
Know in details about the AbstractCollection Class
Prepare yourself for Collection Framework Design Concerns
Gain knowledge about the Set Interface
Get some ideas about the HashSet, TreeSet Classes
Deal with List Interface, Map interface and Sorting
Have a basic idea about Historical Collection Classes such as
Dictionary, Hashtable and Properties Classes
Collections Overview
This chapter deals with one of the powerful subsystems: Collections. Collections provide a
well-defined set of interfaces and classes to store and manipulate groups of data as a
single unit. This unit is called a collection.
The framework provides a convenient API to many of the abstract datatypes like maps,
sets, lists, trees, arrays, hashtables and other collections. The Java classes in the
Collections Framework encapsulate both the data structures and the algorithms associated
with these abstractions because of their object-oriented design.
The framework provides a standard programming interface to many of the most common
abstractions, without complicating it with too many procedures and interfaces. The
programmer can easily define higher-level data abstractions like stacks and queues with
the help of a variety of operations supported by the collections framework.
The major goals of the Collections Framework are: High-performance. Implementations for