1. (Perform set operations on priority queues) Create two priority queues, {"George", "Jim", "John", "Blake", "Kevin", "Michael"} and {"George", "Katie", "Kevin", "Michelle", "Ryan"}, and find their union, difference, and intersection. Use PriorityQueue and perform all the operations.

2.(Count consonants and vowels) Write a program that prompts the user to enter a text file name and displays the number of vowels and consonants in the file. Use a set to store the vowels A, E, I, O, and U. Use Set, HashSet to store the vowels.