// DrJava saved history v2
import java.util.*;//End of Interaction//
List<Object> list = new ArrayList<Object>();//End of Interaction//
list.add(new Name("bob", "white"));//End of Interaction//
list.add(new ID(8));//End of Interaction//
list.add(new Name("joe", null));//End of Interaction//
list.add(new Name("jason", "jones"));//End of Interaction//
for(Object o : list) System.out.println(o.toString());//End of Interaction//
Collections.sort(list);//End of Interaction//
HashMap<Object, Boolean> nameMap = new HashMap<Object, Boolean>();//End of Interaction//
for(Object o : list) nameMap.put(o, Boolean.TRUE);//End of Interaction//
nameMap.get(new Name("bob","white"))//End of Interaction//