We wish to implement a system that allows the management of Employees and Students. As a first step, you need to implement the above UML diagrams Notes: • • PERSON, EMPLOYEE and STUDENT should be public static constants The no-arg constructor will initialize ID, firstName and lastName to their respective null values. It will set personType to PERSON, and sortorder to LAST_NAME The overloaded constructor will assign each parameter to its respective field. sortorder will also be set to LAST_NAME • toString() will output type, ID, firstName and lastName, all tab separated. This is an override method equals() will compare if the current object and the parameter contain the same values. This is an override method compareTo () compares the current object and the parameter. This is an override method. It will be used to sort objects Needs the Comparable interface Will only compare fields depending on the sortorder. For example, if the sortorder is TYPE, it should then compare the personType fields from each object

We wish to implement a system that allows the management of Employees and Students. As a first step, you need to implement the above UML diagrams Notes: • • PERSON, EMPLOYEE and STUDENT should be public static constants The no-arg constructor will initialize ID, firstName and lastName to their respective null values. It will set personType to PERSON, and sortorder to LAST_NAME The overloaded constructor will assign each parameter to its respective field. sortorder will also be set to LAST_NAME • toString() will output type, ID, firstName and lastName, all tab separated. This is an override method equals() will compare if the current object and the parameter contain the same values. This is an override method compareTo () compares the current object and the parameter. This is an override method. It will be used to sort objects Needs the Comparable interface Will only compare fields depending on the sortorder. For example, if the sortorder is TYPE, it should then compare the personType fields from each object

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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Please use NewDate Class.
(b) How does the static data member of a class differ from a non-static data member? Give a real-world scenario in which a static data member might be useful.
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