Hashset

import java.util.*;
class HashSetContoh{
    public static void main(String args[]){
        //membuat hash set
        HashSet<String> al=new HashSet<String>();

        //menginput objek
        al.add("Anto");
        al.add("Budi");
        al.add("Cecep");
        al.add("Dani");
        al.add("Eka");

        Iterator<String> itr=al.iterator();

        //menampilkan
        while(itr.hasNext()) {
            System.out.println(itr.next());
        }
    }
}