Question: 1. A main method that enqueues/dequeues some test strings, modifies the head and displays the state of the queue between these different operations to demonstate

1. A main method that enqueues/dequeues some test strings, modifies the head and displays the state of the queue between these different operations to demonstate how the queue is affected

2. toString() method that returns a string representation of the queue.

3. modifyHead(E value) method that updates the head of the queue

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