Using Java

E6.2. Suppose a queue is maintained as a circular array, as described in Section 6.5.1. Assuming the array is of length 7, show the contents of the array, as well as the positions of the indexes rear and front, at the end of each of the following steps: (a) Start with an empty queue, setting the front index to 0, and the rear index to an appropriate value. (b) Enqueue the characters A, C, D,F