How ArrayList work?

#1

Hey I have doubt in how arrayList works?? and doubt is the default size of arraylist is 10 or 2.?

#2

@awanish285,
The default size of an arraylist is 10.

When you create an object of ArrayList in Java without specifying a capacity, it is created with a default capacity which is 10. Since ArrayList is growable, it automatically resizes when the size (number of elements in arraylist) grows beyond a threshold.

Also, when an ArrayList is first created it is called empty ArrayList and size() will return zero. If you add elements then size grows one by one.

#3

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