public class MySortedMap> implements Map {

protected TreeMap map; This is the sorted map

Java code PLEASE FAST

17.3 Iterable Sorted Maps Again extend the SortedMap from the previous exercise - Make it implement the interface Iterable - If while looping through the collection using the iterator the collection changes, normally the iterator would fail - We do not want this! Make sure the iterator stays working correctly even then - Again, you can use an Observer pattern to achieve this 17.4 Fixed Maps We need a specialized form of a Map: - The order of its elements is fixed, making it behave like a List - Performance is an issue here. Think how you could for example store the keys twice: in a Map and in a List