Convert a string to an array in java

/**
 * @author lautturi.com
 * Java example: Converting a string to an array 
 */

import java.util.*;

public class Lautturi {

	public static void main(String[] args) {

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

output:

[hello, lautturi, java, world!]
hello
lautturi
java
world!