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1. Define a stack in terms of a queue, that is; create a class class Stacko( Queue pool - new Queue(); public void push(Object el) ( pool.enqueue (el); Define a queue in terms of a stack. (a) Define a class StackQ, which uses one or more queues to implement a stack. Write a main class that tests this class also. (b) Define a class QueueS, which uses one or more stacks to implement a queue. Write a main class that tests this class also.

1. Define a stack in terms of a queue, that is; create a class class Stacko( Queue pool - new Queue(); public void push(Object el) ( pool.enqueue (el); Define a queue in terms of a stack. (a) Define a class StackQ, which uses one or more queues to implement a stack. Write a main class that tests this class also. (b) Define a class QueueS, which uses one or more stacks to implement a queue. Write a main class that tests this class also.

Database System Concepts
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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1. Define a stack in terms of a queue, that is; create a class class StackQ ({ Queue pool - new Queue(); public void push(Object el) { pool.enqueue(el); Define a queue in terms of a stack. (a) Define a class StackQ, which uses one or more queues to implement a stack. Write a main class that tests this class also. (b) Define a class QueueS, which uses one or more stacks to implement a queue. Write a main class that tests this class also.
Transcribed Image Text:1. Define a stack in terms of a queue, that is; create a class class StackQ ({ Queue pool - new Queue(); public void push(Object el) { pool.enqueue(el); Define a queue in terms of a stack. (a) Define a class StackQ, which uses one or more queues to implement a stack. Write a main class that tests this class also. (b) Define a class QueueS, which uses one or more stacks to implement a queue. Write a main class that tests this class also.
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