1. Write statements to display all keyvalue pairs in Map object m, one pair per line. You will need to create an iterator to access the map entries.

2. Assume that a Person has data fields lastName and firstName. Write an equals method that returns true if two Person objects have the same first and last names. Write a hashCode method that satisfies the hashCode contract. Make sure that your hashCode method does not return the same value for Henry James and James Henry. Your equals method should return a value of false for these two people.(equals method and hashCode method)

3. Assume class HashSetOpen is written using an array table for storage instead of a HashMap object. Write method contains.

4. Modify method showIndex so each output line displays a word followed by a comma and a list of line numbers separated by commas. You can either edit the string corresponding to each Map entry before displaying it or use methods Map.Entry.getKey and Map.Entry.getValue to build a different string.