import java.util.*;
import java.lang.*;
 
class Main
{
    public static void main(String[] ar) {
        List<String> list = new LinkedList<String>();
        list.add("core java");
        list.add("php");
        list.add("j2ee");
        list.add("struts");
        list.add("hibernate");
 
        Iterator<String> itr = list.iterator();
 
        while (itr.hasNext()) {
            System.out.println(itr.next());
        }
        list.remove("php");
 
        while (itr.hasNext()) {
            System.out.println(itr.next());
        }
    }
}

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