Which class constructor is called when we try to create a primitive array object using 'new'

Question

Which constructor is called when we try to do the follow:

int[] arr = new int[10];

From what I understand, for every single time that we use the keyword new, an object is created inside the Heap, using the constructor of the respective class, and its address is returned back to the reference variable.

My question is; Since Boolean, byte, short, character, int.... are all primitives and don't have a built in class or a constructor (at least I couldn't find one inside the src.zip),

boolean[] b = new boolean[10];
byte[] by = new byte[10];
short[] s = new short[10];
char[] ch = new char[10];
int[] i = new int[10];
long[] l = new long[10];
float[] f = new float[10];
double[] d = new double[10];

What object is returned when we try to create their array using new and how is that object created?

It is not an instance of a class, but of an array. An array is a built-in data structure and does not provide a constructor. — f1sh, Jun 13 '18 at 12:16
@f1sh could you please provide me with any kind of documentation for your answer — 404 Brain Not Found, Jun 13 '18 at 12:18

score 1 · Answer 1 · answered Jun 13 '18 at 12:17

1

An array is an object in Java.

The values in an array of primitives are initialized to their respective default value (e.g. 0 for int, 0.0 for double, etc.)

The values in an array of Objects are initialized to point to null references until you assign them.

answered Jun 13 '18 at 12:17

duffymo

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using constructor from which class? – 404 Brain Not Found Jun 13 '18 at 12:20
Did you not read the previous comments? – duffymo Jun 13 '18 at 12:22
I did, could you please link me any kid of documentation on the same? – 404 Brain Not Found Jun 13 '18 at 12:22
Someone else already did, if I recall correctly. – duffymo Jun 13 '18 at 12:23
i don't see it, could you please paste it here? – 404 Brain Not Found Jun 13 '18 at 12:24
Please click on the duplicate link above. There's a good explanation there. – duffymo Jun 13 '18 at 12:24

Which class constructor is called when we try to create a primitive array object using 'new'

1 Answers1