How can I change the values ​​in a two-dimensional array declared in the main function through another function?

Question

Java

How can I change the values ​​in a two-dimensional array declared in the main function through another function? I am writing a sea battle game, I need to change the values ​​in a two-dimensional array through a separate function.

Answer 1

In Java, arrays are only passed by reference.
Therefore

void change(int[][] field) {
    // Эти команды изменят массив
    field[0][0] = 42;

    field = new int[4][];
    // Теперь изменить оригинальный массив нельзя
}