Here is a possible code example of how to implement a stack and queue using one array in Java. The array size is 10, and the stack and queue can store up to 5 elements each.

Implement a last-in-first-out (LIFO) stack using only two queues. The implemented stack should support all the functions of a normal stack (push, top, pop, and empty). Implement the MyStack class: ...

push(x) -- Push element x to the back of queue. pop() -- Removes the element from in front of queue. peek() -- Get the front element. empty() -- Return whether the queue is empty. You must use only ...