What are arrays ?

Answer 1

I'll try to explain it as simple as possible. (Hopefully I'm right) It's a list of values. Like instead of saying

a = "smth"

you do

a = ['smth0', 'smth1', 'smth2']

and then you access them like so

x = a[0]

In this case you assign a[0] which is 'smth0' to x

Remember that arrays start from 0 and not 1!

Edit: Example is written in Python.

Answer 2

In java array is acollection of similar types of data with continous memory allocation. Java array is an object which contains elements of similar datatypes.