HashMap iterator

1. Make sure you have the geometrie resource. If necessary, see the Resources import webpage.
2. The code below creates a dictionary with several points. Which statement allows you to check the iterator on the keys?

3. Memory representation of the iterator contains several fields. How many ? One of them has a strange name. What does it mean?
4. Which statement can get the first point provided by the iterator?
5. Add statements to check the following items, examine the evolution of the fields next, current and index. Can you imagine what they do?
6. What test shows whether the iterator still provides access to other keys in the dictionary? How do we know the end of the iterator?
7. Write an iteration that displays all the keys of the dictionary, using an iterator.

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