package misc;


import java.util.ArrayList;
import java.util.HashSet;
import java.util.Iterator;
import java.util.LinkedHashSet;

public class RemoveDuplicate {

	public static void main(String[] args) {
		ArrayList list = new ArrayList();	
		list.add("two");
		list.add("one");
		list.add("three");
		list.add("one");
		list.add("four");
		
		ArrayList list2 = new ArrayList(new HashSet(list)); // no elements order
		// ArrayList list2 = new ArrayList(new LinkedHashSet(list)); //To preserve the order of the elements
		Iterator itr = list2.iterator();
		while(itr.hasNext()) {
			System.out.println(itr.next());
		}
	}
}