How to remove duplicate words containing in ArrayList in java

Question

I have used the below code:

The output should be each word within the string in the ArrayList occurring only once.

O/P:

"This is a list and Arraylist with set". Any suggestion will be appreciated.

public class ArrayListTest {

public static void main(String[] args) {
    String s1="This is a list";
    String s2="This is a list and Arraylist";
    String s3="and Arraylist with set";

    ArrayList<String> al = new ArrayList<String>();
    al.add(s1);
    al.add(s2);
    al.add(s3);


        System.out.println(al);
        LinkedHashSet<String> lhs = new LinkedHashSet<String>();
        lhs.addAll(al);
        System.out.println(lhs);



    }

}