Issue
I made the following array:
int[] array = new int[9];
This array is initialized, but empty.
In that case, what is the value of any index of this array?
When I print it out, it gives me 0.
Does that mean there is a zero stored in here (like if you had called int x = 0
)?
Or is it null
?
Also, is this the same for any Object
array?
Is it an empty instance of this object, or is it null
?
Solution
If it is an Array of objects it will be initialized with null
, if it's an array of primitive values (like int
) it will be initialized with 0
. For the non-number primitive boolean
it is false
and for 'char' it is '\u0000'
. For more information, check the table Default Values on the following page:
http://docs.oracle.com/javase/tutorial/java/nutsandbolts/datatypes.html
Answered By - Marv
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