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The Resident class maintains, for a set of addresses, the set of residents living at each address. Do not worry about the import statements. Implement a constructor for Resident that creates an empty map of addresses to a set of resident names, given an instance field named map as declared below.

The Resident class maintains, for a set of addresses, the set of residents living at each address. Do not worry about the import statements. Implement a constructor for Resident that creates an empty map of addresses to a set of resident names, given an instance field named map as declared below.

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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The **Resident** class maintains, for a set of addresses, the set of residents living at each address. Do not worry about the import statements. Implement a constructor for Resident that creates an empty map of addresses to a set of resident names, given an instance field named map as declared below. ```java public class Resident { Map<String, Set<String>> map; public Resident() { // YOU MUST IMPLEMENT THIS METHOD } public void addResident(String address, String residentName) { } public void displayResidentsPerAddress() { } } ``` In this class: - A map is used to associate each address (a String) with a set of resident names (a Set of Strings). - The constructor `Resident()` needs implementation to initialize this map. - The `addResident` method is intended to add a resident's name to a specific address. - The `displayResidentsPerAddress` method is designed to display the residents living at each address.
Transcribed Image Text:The **Resident** class maintains, for a set of addresses, the set of residents living at each address. Do not worry about the import statements. Implement a constructor for Resident that creates an empty map of addresses to a set of resident names, given an instance field named map as declared below. ```java public class Resident { Map<String, Set<String>> map; public Resident() { // YOU MUST IMPLEMENT THIS METHOD } public void addResident(String address, String residentName) { } public void displayResidentsPerAddress() { } } ``` In this class: - A map is used to associate each address (a String) with a set of resident names (a Set of Strings). - The constructor `Resident()` needs implementation to initialize this map. - The `addResident` method is intended to add a resident's name to a specific address. - The `displayResidentsPerAddress` method is designed to display the residents living at each address.
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