Array is object

Notice

I wrote this article and was originally published on Qiita on 19 September 2019.

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Array class is defined in JVM

public class ArrayClassClassloader {

    public static void main(String[] args) {
        System.out.println(boolean[].class.getClassLoader());
    }

}

Output

null

This means that array class is load by bootstrap class loader

Name of array class

public class ArrayClassName {

    public static void main(String[] args) {
        System.out.println(boolean[].class.getName());
        System.out.println(short[].class.getName());
        System.out.println(int[].class.getName());
        System.out.println(long[].class.getName());
        System.out.println(float[].class.getName());
        System.out.println(double[].class.getName());
        System.out.println(char[].class.getName());
        System.out.println(byte[].class.getName());
        System.out.println();
        System.out.println(java.lang.Integer[].class.getName());
        System.out.println();
        System.out.println(int[][].class.getName());
        System.out.println(int[][][].class.getName());
        System.out.println(int[][][][].class.getName());
    }

}

Output

[Z
[S
[I
[J
[F
[D
[C
[B

[Ljava.lang.Integer;

[[I
[[[I
[[[[I