2. Given the following array based Queue class declaration, write the methods specified. Both the enqueue and dequeue method must run in Of1) time. public void enqueue(E n); public E dequeue() public boolean isFull); public boolean isEmpty0) public class Queue private int maxsize; private int currentS private Object (I storage; private int front, rear; public Queuelint size) ( maxSize - size currentSize 0; storage (E[I) new ObjectmaxSizel): front -rear 0; public void enqueue(E obj) public E dequeuel) public boolean isFull public boolean istmpty)