Queue example – make this generic, instead of a Queue of Customer. public class Queue {      private ArrayList line;   public Queue() {      line = null; }   public void enqueue (Customer c) {      Customer newc = new Customer (c);     // copy constructor plateful.add(newc);        }   public Customer dequeue (Customer c) {      Customer newc = line.get(0); plateful.remove(0); return newc; } }  // end of class definition

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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Queue example – make this generic, instead of a Queue of Customer.

public class Queue

{

     private ArrayList<Customer> line;

 

public Queue()

{

     line = null;

}

 

public void enqueue (Customer c)

{

     Customer newc = new Customer (c);     // copy constructor

plateful.add(newc);       

}

 

public Customer dequeue (Customer c)

{

     Customer newc = line.get(0);

plateful.remove(0);

return newc;

}

}  // end of class definition

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