how to convert single string to arraylist in java code example

Example: convert string to arraylist

import java.util.ArrayList;
import java.util.List;
import java.util.Arrays;
public class JavaExample {
    public static void main(String args[]){
	String num = "22,33,44,55,66,77";
	String str[] = num.split(",");
	List<String> al = new ArrayList<String>();
	al = Arrays.asList(str);
	for(String s: al){
	   System.out.println(s);
	}
   }
}