In JAVA HERE IS SerialNumberTester class:public class SerialNumberTester{public static void main(String[] args){String serial1 = "GHTRJ-8975-AQWR"; // ValidString serial2 = "GHT7J-8975-AQWR"; // InvalidString serial3 = "GHTRJ-8J75-AQWR"; // InvalidString serial4 = "GHTRJ-8975-AQ2R"; // Invalid// Validate serial1.First_Last_SerialNumber sn = new First_Last_SerialNumber(serial1);if (sn.isValid())System.out.println(serial1 + " is valid.");elseSystem.out.println(serial1 + " is invalid.");// Validate serial2.sn = new First_Last_SerialNumber(serial2);if (sn.isValid())System.out.println(serial2 + " is valid.");elseSystem.out.println(serial2 + " is invalid.");// Validate serial3.sn = new First_Last_SerialNumber(serial3);if (sn.isValid())System.out.println(serial3 + " is valid.");elseSystem.out.println(serial3 + " is invalid.");// Validate serial4.sn = new First_Last_SerialNumber(serial4);if (sn.isValid())System.out.println(serial4 + " is valid.");elseSystem.out.println(serial4 + " is invalid.");}} You will need to turn in a java classes file: FirstName_LastName_SerialNumber .javaGOOD LUCK!FirstName_LastName_SerialNumber ClassThe First_Last_SerialNumber class is used by the Home Software Company to validate software serial numbers. Avalid software serial number is in the form LLLLL-DDDD-LLLL, where L'indicates an alphabetic letter and Dindicates a numeric digit. For example, WRXTQ-7786-PGVZ is a valid serial number. Notice that a serial numberconsists of three groups of characters, delimited by hyphens.UML diagram for the First_ Last_SerialNumber class.SerialNumber|- first : String|- second : String|- third : String- valid : booloan+ SerialNumber(sn : String)+ isValid() : boolean|- validate() : void|- isFirstGroupValid: boolean|- isSecondGroupValid : boolean|- isThirdGroupValid : booleanThe fields first, second, and third are used to hold the first, second, and third groups of characters in a serial number.The valid fi eld is set to true by the constructor to indicate a valid serial number, or false to indicate an invalid serialnumber.FirstName_LastName_SerialNumber elass's meckodsMethodDescriptionConstructorThe constructor accepts a string argument that contains a serial number. The string istokenized and its tokens are stored in the first, second, and third fields. The validatemethod is called.isValidThis method returms the value in the valid field.This method calls the isFirstGroupValid, isSecondGroupValid , and isThirdGroupValid =methods to validate the first, second, and third fields.This method retums true if the value stored in the first field is valid. Otherwise, it returnsfalse.validateisFirstGroupValidisSecondGroupValid This method returns true if the value stored in the second field is valid. Otherwise, itreturns false.This method retums true if the value stored in the third field is valid. Otherwise, it returmsfalse.is ThirdGroupValidYou can use the SerialNumberTester class provided to test your First_Last_SerialNumber class

1. Create a class file called SerialNumber.java and save the content as: package…

Answered: FirstName_LastName_SerialNumber Clas:…

Computer Networking: A Top-Down Approach (7th Edition)

7th Edition

ISBN:9780133594140

Author:James Kurose, Keith Ross

Publisher:James Kurose, Keith Ross

Chapter1: Computer Networks And The Internet

Section: Chapter Questions

Problem R1RQ: What is the difference between a host and an end system? List several different types of end...

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In JAVA

HERE IS SerialNumberTester class:

public class SerialNumberTester
{
public static void main(String[] args)
{
String serial1 = "GHTRJ-8975-AQWR"; // Valid
String serial2 = "GHT7J-8975-AQWR"; // Invalid
String serial3 = "GHTRJ-8J75-AQWR"; // Invalid
String serial4 = "GHTRJ-8975-AQ2R"; // Invalid
// Validate serial1.
First_Last_SerialNumber sn = new First_Last_SerialNumber(serial1);
if (sn.isValid())
System.out.println(serial1 + " is valid.");
else
System.out.println(serial1 + " is invalid.");
// Validate serial2.
sn = new First_Last_SerialNumber(serial2);
if (sn.isValid())
System.out.println(serial2 + " is valid.");
else
System.out.println(serial2 + " is invalid.");
// Validate serial3.
sn = new First_Last_SerialNumber(serial3);
if (sn.isValid())
System.out.println(serial3 + " is valid.");
else
System.out.println(serial3 + " is invalid.");
// Validate serial4.
sn = new First_Last_SerialNumber(serial4);
if (sn.isValid())
System.out.println(serial4 + " is valid.");
else
System.out.println(serial4 + " is invalid.");
}
}