Collections in Java

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Collections in Java

 

--        The Java Collections Framework is a collection of interfaces and classes which helps in storing and processing the data efficiently.
 
--  Collections in Java are used in almost every application.

--  Java Collections Framework is one of the core part of Java

--  Collections provides an architecture to   store and manipulate the group of objects and data.

--  A Collection is a group of individual objects represented as a single unit


Advantages of Java Collections Framework

Collections framework have following benefits:

1)  We need not to learn multiple ad hoc collection APIs in java

2)  Reduced Development Effort

3)  Increased Quality 

4)  It provides standard interface for collections that fosters software reuse and also provides algorithms to manipulate data.

 5) collection can grow and resizable


Collection chart


 Classes and interface in collections.


 List interface

2) LinkedList class   
3) Vector class

4) Stack class


 Set interface

1) HashSet class 
2) LinkedHashSet class 
3) TreeSet class  
4) EnumSet class
5) Shorted set  --> TreeSet class


 Map interface

1) HashMap class 
2) LinkedHashMap class
3) TreeMap class
4) EnumMap class 
5) IdentityHashMap class


 Queue interface

1) PriorityQueue class 

 2) Deque interface --> ArrayDeque class

 





 

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