difference between object declare instantiation and initialization

Hi All,
             I am confused over these three terms,i know what is object declaration and initialization but confused over ojbect instantiation ,i am giving a example below what i understood :


Class ABC
{


|


Public static Void main()
{
ABC a   // Object declaration
 a = new ABC();   //Object initialization


//Then when and how instantiation comes into picture



}



Please provide any expale or informative links(if possible) while replying.
Thanks,
Ankur

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