Java Collections Framework

This section contains the complete collection tutorial.

Java Collections Framework

To handle collection of objects, Java collection API offers us classes and interfaces. Collection is similar to array except that they have advance features and can change their size dynamically. This tutorial covers almost all the topics of collection with it's complete list of examples. This tutorial also contain various implementation of the collection.

This easy and complete demonstration ,with example, guide you to understand the collection more efficiently. After completing this tutorial you will be proficient enough to implement it in your code. 

Things to know in advance

You must be familiar with basic oops concept to understand this tutorial more conveniently.

Software requirement

At least JDK 1.3 because collection is added after JDK 1.2 but we recommend you use latest version whatever available to you.

Given below the tutorial's complete list :

Part of Collections Framework

• Collection
• Set
• List
• Queue
• Deque
• Map
• SortedSet
• SortedMap
• NavigableSet
• NavigableMap
• BlockingQueue
• BlockingDeque
• ConcurrentMap 
• ConcurrentNavigableMap

General-Purpose Implementations -

• HashSet
• TreeSet
• LinkedHashSet
• ArrayList
• ArrayDeque
• LinkedList
• PriorityQueue
• HashMap
• TreeMap
• LinkedHashMap

Legacy Implementations -

• Vector
• Hashtable

Special Purpose Implementations

• WeakHashMap
• IdentityHashMap
• CopyOnWriteArrayList
• CopyOnWriteArraySet
• EnumSet
• EnumMap

Concurrent Implementations

• ConcurrentLinkedQueue
• LinkedBlockingQueue
• ArrayBlockingQueue
• PriorityBlockingQueue
• DelayQueue
• SynchronousQueue
• LinkedBlockingDeque
• ConcurrentHashMap
• ConcurrentSkipListSet
• ConcurrentSkipListMap

Abstract Implementations

• AbstractCollection
• AbstractSet
• AbstractList
• AbstractSequentialList
• AbstractQueue
• AbstractMap

Iterators 

• Iterator Interface
• ListIterator Interface

Ordering 

• Comparable
• Comparator

Array Utilities

• Arrays