Splitting a string into component characters in java

/**
 * @author lautturi.com
 * Java example: java split a string into component characters
 */

import java.util.*;

public class Lautturi {

	public static void main(String[] args) {

		String str = "hi lautturi.";
		
		String[] arr = str.split(""); 
  
		System.out.println(Arrays.toString(arr)); 
		
        for (String s : arr) 
            System.out.println(s); 
		
	}
}

output:

[h, i,  , l, a, u, t, t, u, r, i, .]
h
i
 
l
a
u
t
t
u
r
i
.