Hello! I need an expert explanation on what is a Java collection framework? What it is about and what is its usage. Can you give me a background on its classes and interfaces?
What is a Java collection framework?
Hi Nimrod,
Java collections framework is a set of classes and interfaces in order to provide a unified architecture for representing and manipulating collections :
Frameworks Aims to :
Have a high-efficiency. Many of the fundamental collections such as dynamic arrays, linked lists and trees are highly efficient.
Different types of collections should work with a high degree of Interoperability
Adoption and extension of a collections have to be easy.
A Java collections frameworks contain:
a. Interfaces.
b. Classes.
c. Algorithms.
Java framework defines several Interfaces and Classes.
Most important Framework Collection Interfaces are:
1. The Collection Interface
2. The SortedSet
3. The Set
4. The Map
5. The Map.Entry
6. The Enumeration
8. The List Interface
Most important Framework Collection Interfaces are:
1. AbstractCollection
2. AbstractList
3. AbstractSeuentialList
4. LinkedList
5. ArrayList
6. AbstractSet
7. HashSet
8. LinkedHashSet
9. TreeSet
Classes and Interfaces of the Collections are located in Java.Util
Cheers,
Frazier
What is a Java collection framework?
This are a set of classes and interfaces
The framework consists of
1- Iinterface which are abstract data types that represent collections
2- Implementations i.e. classes which are re-usable data structures
3- Algorithms which are methods that perform several computations such as searching &sorting objects that implement collection interfaces
It gives a program access to data that has been pre-packaged and algorithm for manipulating the data
What is a Java collection framework?
Java collections framework set of classes and interfaces that implement commonly reusable collection data structures.
Collection framework goals:
>>high-performance
>>allow different types of collections to work
>>Extends an element (a key/value pair) in a maping a collection to be easy.
Collection framework interfaces :
> Collection Interface
> List Interface
> Set
> The Sorted Set
> Map
> The Map.Entry
> The Sorted Map
> The Enumeration
Classes
1 Abstract Collection
2 Abstract List
3 Abstract Sequential List
4 Linked List
5 Array List
6 Abstract Set
7 Hash Set
8 Linked Hash Set
9 Tree Set
10 Abstract Map
11 Hash Map
12 Tree Map
13 Weak Hash Map
14 Linked Hash Map
15 Identity Hash Map
