Database System Concepts
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Data structure & Algrothium java program

Create the three following classes:

1. class containing two strings attributes first name and last name.
2. class containing the name object and an ArrayList of string to store the list gifts. This class would extend the attached NicePersonInterface.java
3. class containing one ArrayList of Names to store the naughty names. Another ArrayList of NicePerson to store the nice names and gifts. Add atleast 4 names in each list and display all information.

[画像:```java import java.util.List; import java.util.ArrayList; /** This interface describes the operations of a person on the nice list. @author Frank M. Carrano @author Timothy M. Henry @version 5.0 */ public interface NicePersonInterface { // We want the constructor to set the person's name, // but we do not want the client to be able to change it. // So we are omitting a method setName. /** Gets the name of this person. @return The name of a person on the nice list. */ public Name getName(); /** Adds a gift to this person's gift list. @param aPresent A string that describes the gift. @return True if the gift was added, or false if not. */ public boolean addGift(String aGift); /** Removes a gift from this person's gift list. @param aGift A string that describes the gift. @return True if the gift was removed, or false if not. */ public boolean removeGift(String aGift); /** Sets this person's gift list. @param aGift A string that describes the gift. */ public void setGifts(ArrayList<String> gifts); /** Gets this person's gift list. @return This person's gift list. */ public ArrayList<String> getGifts(); } // end NicePersonInterface ``` ### Explanation This Java interface is designed to manage operations related to a "nice list" for individuals. Here's a breakdown of its components: - **Author and Version Information**: The code includes author credits to Frank M. Carrano and Timothy M. Henry and specifies the version as 5.0. - **Interface Purpose**: It details the functionalities available for a person on the "nice list". The interface includes methods for managing a person's gifts and name. - **Methods**: - `getName()`: Retrieves the name of the person. - `addGift(String aGift)`: Adds a gift to the person's gift list and returns true if successful. - `removeGift(String aGift)`: Removes a specified gift from the list and returns true if successful. - `setGifts(ArrayList<String> gifts)`: Sets the person's entire gift list. - `getGifts()`: Returns the person's list of gifts. This interface restricts clients from directly changing a person's name, ensuring encapsulation and data integrity.]
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Transcribed Image Text:```java import java.util.List; import java.util.ArrayList; /** This interface describes the operations of a person on the nice list. @author Frank M. Carrano @author Timothy M. Henry @version 5.0 */ public interface NicePersonInterface { // We want the constructor to set the person's name, // but we do not want the client to be able to change it. // So we are omitting a method setName. /** Gets the name of this person. @return The name of a person on the nice list. */ public Name getName(); /** Adds a gift to this person's gift list. @param aPresent A string that describes the gift. @return True if the gift was added, or false if not. */ public boolean addGift(String aGift); /** Removes a gift from this person's gift list. @param aGift A string that describes the gift. @return True if the gift was removed, or false if not. */ public boolean removeGift(String aGift); /** Sets this person's gift list. @param aGift A string that describes the gift. */ public void setGifts(ArrayList<String> gifts); /** Gets this person's gift list. @return This person's gift list. */ public ArrayList<String> getGifts(); } // end NicePersonInterface ``` ### Explanation This Java interface is designed to manage operations related to a "nice list" for individuals. Here's a breakdown of its components: - **Author and Version Information**: The code includes author credits to Frank M. Carrano and Timothy M. Henry and specifies the version as 5.0. - **Interface Purpose**: It details the functionalities available for a person on the "nice list". The interface includes methods for managing a person's gifts and name. - **Methods**: - `getName()`: Retrieves the name of the person. - `addGift(String aGift)`: Adds a gift to the person's gift list and returns true if successful. - `removeGift(String aGift)`: Removes a specified gift from the list and returns true if successful. - `setGifts(ArrayList<String> gifts)`: Sets the person's entire gift list. - `getGifts()`: Returns the person's list of gifts. This interface restricts clients from directly changing a person's name, ensuring encapsulation and data integrity.
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