Collections Framework in Java .
In this video explain about introduction of collection
A group of individual things is called collection....
Technical definition:
----------------
A collectio is a container object ..
it is used to collecting multiple homogenous,heterogenios,unique and duplicate indivial object without siz limitation and it is used for sending all these object as one unit using single name form one class method to another class method as argument...
.These classes are usually collection framework..
why Collection???
object[] having 3
1)it allows to store same type elements..
2)it is fixed size..
3)inbuilt methods doesn't allows different operation....
All collection class define in java.util.package..
Array list
vector
stack
linkedlist
priority queue
Hashset
LinkedHashSet
TreeSet
HashMap
LinkedHashMap
TreeMap
Hash table
Properties
Define some helper class////
Enumeration,,Iterator,,ListIterator,primitiveIterator,splIterator..
Advantage:
Reduced programming effort..
Reduced the effort to learn API.
Reduced the effort of implementation of design
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