Chapter 14.2, Problem 15SCP

Program Plan Intro

Produce output for the given code

Program plan:

• Import necessary packages.
• Create a class “QueueEx”,
  • Define the method “main()”,
    • Create object for “Queue”.
    • Call the “add()” method of queue to add the element “10”, and “4” into the Queue one by one.
    • Print the queue size.
    • Print the first element retrieved from the queue.
    • Call the method of queue “add()” to add the element “6”.
    • Print the element which is removed first from the queue.
    • Call the method of queue “add()” to add the element “3”.
    • Print the element which is removed first from the queue.
    • Print the first element retrieved from the queue.
    • Print the element which is removed first from the queue.
    • Call the method of queue “add()” to add the element “7”.
    • Print the first element retrieved from the queue.