How to initialize a 2d array in Java

/**
 * @author lautturi.com
 * Java example: 2-dimensional array in Java
 */

import java.util.*;
import static java.lang.Math.sqrt;

public class Lautturi {

	public static void main(String[] args) {

		// declare and initialize a 2d array in Java
		int array[][] = { {1,2,3,4},{5,6,7,8},{9,10,11,12} };
		
		// print the 2d array in Java
		for (int[] subarray : array) {
			for (int element : subarray) {
				System.out.print(element+" ");
			}
			System.out.println();
		}	
	}
}

output:

1 2 3 4 
5 6 7 8 
9 10 11 12