Chapter 20, Problem 20.12PE

Program Plan Intro

Clone PriorityQueue

Program plan:

• Import the required packages into the program.
• In the Exercise20_12 class,
  • In the main() method,
    • Create two objects for Priority Queue.
    • Add the items into the queue.
    • Create another object for Priority queue by clone() method.
    • Display the result.
• In the MyPriorityQueue() class,
  • Define the clone() method.
    • Create an object for MyPriorityQueue.
    • Loop execute until the item. If yes,
      • Call the offer() method.
    • Return the queue.