in Java Comparator InterfaceCreate a new package called Lab04A. All the code for this part should reside in there.Create a class that represents a Person in a file called Person.java. It should have instance variables, fora name and an age in years (int). Ensure that it has getters for these variables.Next, let's test out how the Java Comparator interface works. To use it, we need to import the following:import java.util.Comparator;This will allow you to use the Comparator interface like so:public class AgeComparator implements ComparatorRecall from class that abstract methods defined within an interface need to be implemented by theconcrete class. In this case, we will need to implement a compare method:public int compare (Person arg0, Person argl)Create two classes for comparing objects of type Person by age, and by name. Call them as follows,implement their compare methods, and place them in the files AgeComparator.java, andLexicographic Comparator.java.public class AgeComparator implements Comparatorpublic class LexicographicComparator implements ComparatorWith this you can now make use of builtin Java tools for sorting! Create a Main.java file for yourmain function, and test your methods by creating an array of Person objects. Then, import the Collectionspackage:import java.util.Collections;Now with your new array of type Person, you can sort it without having to implement your own sortingalgorithm (so you can make use of high-quality ones):List people = Arrays.asList (p1, p2, p3, p4, p5);Collections.sort (people, new LexicographicComparator () );Print your array before and after sorting lexicographically, and before/after sorting by age.

The Comparator interface in Java serves as a tool for comparing objects, offering flexibility when…

Create a new package called Lab04A. All the code for this part should reside in there. Create a class that represents a Person in a file called Person.java. It should have instance variables, for a name and an age in years (int). Ensure that it has getters for these variables. Next, let's test out how the Java Comparator interface works. To use it, we need to import the following: import java.util.Comparator; This will allow you to use the Comparator interface like so: public class AgeComparator implements Comparator

Create a new package called Lab04A. All the code for this part should reside in there. Create a class that represents a Person in a file called Person.java. It should have instance variables, for a name and an age in years (int). Ensure that it has getters for these variables. Next, let's test out how the Java Comparator interface works. To use it, we need to import the following: import java.util.Comparator; This will allow you to use the Comparator interface like so: public class AgeComparator implements Comparator

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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