Challenge: Iterator Pattern

Problem statement

In this challenge, you have to reverse iterate a simple hashmap and display its key values.

You need to implement the reverseIterate function that accepts the hashmap, items, and displays the key values in reverse. To reverse iterate, make use of the ReverseIterator class. It contains the following functions:

• hasprevElement: checks if there is a previous element

• last: returns the last key value in the map

• previous: returns the previous key value in the map

Apart from the functions mentioned above, you also need to define its constructor.

Input

Calling reverseIterate function on a simple hashmap

Output

Hashmap’s values displayed in reverse order

Sample input

reverseIterate({'name': 'Anne', 'age': '23', 'gender': 'Female', 'Occupation': 'Engineer'})

Sample output

"Engineer"
"Female"
"23"
"Anne"