**Trace the following fragment for a Stack s and an empty queue q (type Queue).**---**Diagram Explanation:**- **Stack s:** - The stack initially contains three elements: - "First" - "Second" - "Third" (at the top)- **Queue q:** - The queue is initially empty.---**Code Explanation:**```javaString item;while (!s.empty()) { item = s.pop(); q.offer(item); q.offer(" hi");}while (!q.isEmpty()) { item = q.remove(); s.push(item); s.push(" there");}```This code consists of two main loops. Here's a step-by-step explanation of what each part of the code does:1. **First Loop:** - The loop continues as long as the stack `s` is not empty. - Each iteration: - Removes the top item from the stack `s` and stores it in `item`. - Adds `item` to the queue `q`. - Adds the string " hi" to the queue `q`.2. **Second Loop:** - This loop continues as long as the queue `q` is not empty. - Each iteration: - Removes the front item from the queue `q` and stores it in `item`. - Pushes `item` onto the stack `s`. - Pushes the string " there" onto the stack `s`.

Trace the following fragment for a Stack s and an empty queue q (type Queue). Stacks First Second Third Queue a String item; while (!s.empty()) { item = s.pop(); q.offer (item); } q.offer (" hi"); } while (!q.isEmpty()) { item = q.remove() s.push (item); s.push (" there");

Trace the following fragment for a Stack s and an empty queue q (type Queue). Stacks First Second Third Queue a String item; while (!s.empty()) { item = s.pop(); q.offer (item); } q.offer (" hi"); } while (!q.isEmpty()) { item = q.remove() s.push (item); s.push (" there");

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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