How to make an array of arrays in Java

Question

Hypothetically, I have 5 string array objects:

String[] array1 = new String[];
String[] array2 = new String[];
String[] array3 = new String[];
String[] array4 = new String[];
String[] array5 = new String[];

and I want another array object to contain those 5 string array objects. How do I do it? Can I put it in another array?

Answer 1

Like this:

String[][] arrays = { array1, array2, array3, array4, array5 };

or

String[][] arrays = new String[][] { array1, array2, array3, array4, array5 };

(The latter syntax can be used in assignments other than at the point of the variable declaration, whereas the shorter syntax only works with declarations.)