Commons Collection Interfaces
- Commons Collections - Bag Interface
- Commons Collections - BidiMap Interface
- Commons Collections - MapIterator Interface
- Commons Collections - OrderedMap Interface
Commons Collections Usage
- Commons Collections - Ignore Null
- Commons Collections - Merge & Sort
- Commons Collections - Transforming Objects
- Commons Collections - Filtering Objects
- Commons Collections - Safe Empty Checks
- Commons Collections - Inclusion
- Commons Collections - Intersection
- Commons Collections - Subtraction
- Commons Collections - Union
Commons Collections Resource
Apache Commons Collections Tutorial
What is Apache Commons Collections?
The Apache Commons Collections are the components of the Apache Commons which are derived from Java API and provides component architecture for the Java language. Commons-Collections seek to build upon the JDK classes by providing new interfaces, implementations and utilities. This tutorial covers most of the topics required for a basic understanding of Apache Commons Collections and to get a feel of how it works.
This Apache Commons Collections tutorial is based on the latest Apache Commons Collections 4.5.0 version.
Who Should Learn Apache Commons Collections
This tutorial is tailored for readers who aim to understand and utilize Apache Commons Collections utilities. In this tutorial, we'll cover all the ways of using Apache Common Collections which helps in solving the common problems developers/users face during development.
Apache Commons Collections Features
The main features of Commons Collections are as follows −
Bag − Bag interfaces simplifies the collections, which have multiple number of copies of each object.
BidiMap − BidiMap interfaces provide Bi-Directional maps, which can be used to lookup values using keys or keys using values.
MapIterator − MapIterator interface provide simple and easy iteration over maps.
Transforming Decorators − Transforming decorators can alter every object of a collection as and when it is added to the collection.
Composite Collections − Composite collections are used, where multiple collections are required to be handled uniformly.
Ordered Map − Ordered Maps retain the order, in which elements are added in.
Ordered Set − Ordered Sets retain the order, in which elements are added in.
Reference map − Reference map allows key/values to be garbage collected under close control.
Comparator implementations − Many Comparator implementations are available.
Iterator implementations − Many Iterator implementations are available.
Adapter Classes − Adapter classes are available to convert array and enumerations to collections.
Utilities − Utilities are available to test or create typical set-theory properties of collections such as union, intersection. Supports Closure.
Prerequisites to Learn Apache Commons Collections
To maximize the benefits of this tutorial, readers should have a basic understanding of Java programming. Knowledge of Collections will enhance comprehension.
Apache Commons Collections Jobs and Opportunities
Apache Commons Collections offers many job opportunities in the field of Development. Companies use Apache Commons Collections where collections are used heavily, so knowing how to work with it can help you get jobs in tech and research. There are also chances to contribute to open-source projects and collaborate with others in the Apache Commons Collections community.