Answered: The compareTo method. First you compare…

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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Question

The compareTo method. First you compare this.ticker which is a String, then if they are the same then you compare by the this.purchasePrice which is a double

hashCode

public int hashCode()

The hashCode method using the Code-> Generate equals and hashCode with no changes

Overrides:

hashCode in class Object

Returns:

int Representing the hashCode

compareTo

public int compareTo(Stock another)

The compareTo method not auto generated Compares first by ticker and if the tickers are the same secondarily compares by price

Specified by:

compareTo" in interface Comparable<stock>

Parameters:

another - the object to be compared.

Returns:

int Representing order

Throws:

IllegalArgumentException"- if another is null.

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