public class Simulator {         public static boolean run(DFA dfa, String input) {         \\You need to fill in the missing part here.     \\You do not need to include the DFA class.                           } }

2-7 Given the code below, which lines are valid and invalid.

public class Cat extends Pet {   private String breed;    public void setBreed(String userBreed) {      breed = userBreed;   }    public String getBreed() {      return breed;   }} public class Pet {    protected String name;   protected int age;    public void setName(String userName) {      name = userName;   }    public String getName() {      return name;   }    public void setAge(int userAge) {      age = userAge;   }    public int getAge() {      return age;   }    public void printInfo() {      System.out.println("Pet Information: ");      System.out.println("   Name: " + name);      System.out.println("   Age: " + age);   } } import java.util.Scanner; public class PetInformation {   public static void main(String[] args) {        Scanner scnr = new Scanner(System.in);         // create a generic Pet and a Cat        Pet myPet = new Pet();        Cat myCat = new Cat();         // declare variables for pet and cat info        String petName, catName, catBreed;        int petAge,…