PLEASE ANSWER THESE

IN JAVA TIME COMPLEXITY

6. [5 points) Write a recursive algorithm for determining if a string s has more vowels than consonants. 7. [5 points) Write a recursive algorithm that rearranges an array of integer values so that all the even values appear before all the odd values. 8. [5 points) How can you implement a queue using stacks? (Hint: Use two stacks.) 9. [5 points] How can you implement a stack using queues? (Hint: Use two queues.) 10.[5 points) How can you implement both stack and queue using a deque