PhoneList

import java.util.*;
public class PhoneList {
    private LinkedList<PhoneEntry> list;
    private ListIterator<PhoneEntry> iterator;
    public PhoneList(){
        list = new LinkedList<PhoneEntry>();
    }
    public void add(String name, String phone) {
        PhoneEntry entry = new PhoneEntry(name, phone);
        PhoneEntry temp;
        iterator = list.listIterator();
        if (!iterator.hasNext()) {
            iterator.add(entry);
        return;
        }
        while (iterator.hasNext()) {
            temp = iterator.next();
            if (entry.compareTo(temp) < 0){
                iterator.previous();
                iterator.add(entry);
            return;
            }
        }
        iterator.add(entry);
    }
    public String lookUp(String name) {
        PhoneEntry temp;
        iterator = list.listIterator();
        while (iterator.hasNext()) {
            temp = iterator.next();
        if (name.equals(temp.getName()))
            return temp.getPhone();
        }
        return null;
    }
    public boolean remove(String name) {
        PhoneEntry temp;
        iterator = list.listIterator();
        while (iterator.hasNext()) {
            temp = iterator.next();
            if (temp.getName().equals(name)){
                list.remove(temp);
                return true;
            }
        }
        return false;
    }
    public void listAll(){
        iterator = list.listIterator();
        while (iterator.hasNext())
            System.out.print(iterator.next() + "\n");
    }
}