how to split a string by period delimiter in java

/**
 * @author lautturi.com
 * Java example: split a string by period delimiter in java
 */

import java.util.*;
import java.util.regex.Pattern;

public class Lautturi {

	public static void main(String[] args) {

		String str = "hello world. hi lautturi. welcome";
		//String[] arr = str.split("\\."); 
		// Or using Pattern
		String[] arr = str.split(Pattern.quote(".")); 
  
		System.out.println(Arrays.toString(arr)); 
		
        for (String s : arr) 
            System.out.println(s); 
		
	}
}

output:

[hello world,  hi lautturi,  welcome]
hello world
 hi lautturi
 welcome