Refer to the code fragment below and convert the following Queue structure into a Stack structure. You should create a reference called S1 for the stack structure. Code: Queue Q1 = new LinkedList (); Q1.add("Sandra"); Q1.add (15); Q1.add (200); Q1.add ('#'); Q1. remove (); System.out.println(Q1); System.out.println(Q1.peek()); Q1.add("Mary"); System.out.println(Q1);
Refer to the code fragment below and convert the following Queue structure into a Stack structure. You should create a reference called S1 for the stack structure. Code: Queue Q1 = new LinkedList (); Q1.add("Sandra"); Q1.add (15); Q1.add (200); Q1.add ('#'); Q1. remove (); System.out.println(Q1); System.out.println(Q1.peek()); Q1.add("Mary"); System.out.println(Q1);
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
Problem 1PE
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4.3 Refer to the code fragment below and convert the following Queue structure into a Stack structure. You should create a reference called S1 for the stack structure.
Code:
Queue Q1 = new LinkedList ();
Q1.add("Sandra");
Q1.add (15);
Q1.add (200);
Q1.add ('#');
Q1. remove ();
System.out.println(Q1);
System.out.println(Q1.peek());
Q1.add("Mary");
System.out.println(Q1);
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