How do I remove repeated elements from ArrayList?

Question

I have an ArrayList, and I want to remove repeated strings from it. How can I do this?

Answer 1

import java.util.*;
class RemoveDupFrmString
{
    public static void main(String[] args)
    {

        String s="appsc";

        Set unique = new LinkedHashSet ();

        for(char c : s.toCharArray()) {

            System.out.println(unique.add(c));
        }
        for(char dis:unique){
            System.out.println(dis);
        }


    }
}