1. Write a Java program to create a new priority queue, add some colors (string) and print out the elements of the priority queue.
2. Write a Java program to iterate through all elements in priority queue.
3. Write a Java program to add all the elements of a priority queue to another priority queue.
4. Write a Java program to insert a given element into a priority queue.
5. Write a Java program to remove all the elements from a priority queue.
6. Write a Java program to count the number of elements in a priority queue.
7. Write a Java program to compare two priority queues.
8. Write a Java program to retrieve the first element of the priority queue.
9. Write a Java program to retrieve and remove the first element.
10. Write a Java program to convert a priority queue to an array containing all of the elements of the queue.
11. Write a Java program to convert a Priority Queue elements to a string representation.
12. Write a Java program to change priorityQueue to a maximum priority queue.