print 2d array in java

/**
 * @author lautturi.com 
 * Java example: print a 2d array in java
 */

import java.util.*;

public class Lautturi {
	
    public static void main(String[] args)
    {
    	int arr[][] = { {1,2,3,4},{5,6,7,8},{9,10,11,12} };
    	
    	// method 1 using for loop to print 2d array in java
    	for (int row = 0; row < arr.length; row++) 
    	{
    	  for (int col = 0; col < arr[row].length; col++) 
    	  {
    	    System.out.printf("%5d", arr[row][col]); 
    	  }
    	  System.out.println();
    	}
    	// method 2 using for-each loop to print 2d array in java
    	for (int[] subarray : arr) {
			for (int element : subarray) {
				System.out.print(element+" ");
			}
			System.out.println();
		}
    	// method 3 using deepToString method to print 2d array in java
    	System.out.println(Arrays.deepToString(arr));
    }
}

output:

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