public class Person { }public class Student extends Person { }public class Teacher extends Person { }public class Room { }public class Classroom extends Room { }public class Office extends Room { }public class Hallway extends Room { }public class MainClass { private static ArrayList<Room> layout = new ArrayList<Room>(); public static void main(String[] args) { /* MISSING CODE */ }}

Main.java:3: error: class Person is public, should be declared in a file named Person.javapublic class Person { ^Main.java:15: error: class Student is public, should be declared in a file named Student.javapublic class Student extends Person { ^Main.java:24: error: class Employee is public, should be declared in a file named Employee.javapublic class Employee extends Person { ^Main.java:34: error: class Faculty is public, should be declared in a file named Faculty.javapublic class Faculty extends Employee { ^Main.java:44: error: class Staff is public, should be declared in a file named Staff.javapublic class Staff extends Employee { ^5 errors

Given the following code, find the compile error. Please select all that apply. public class Test {   public static void main(String[] args) {     m(new GraduateStudent());     m(new Student());     m(new Person());     m(new Object());   }   public static void m(Student x) {     System.out.println(x.toString());   } }  class GraduateStudent extends Student { } class Student extends Person {   @Override   public String toString() {     return "Student";   } } class Person extends Object {   @Override   public String toString() {     return "Person";   } } Group of answer choicesm(new GraduateStudent()) causes an errorm(new Student()) causes an errorm(new Person()) causes an errorm(new Object()) causes an error

what is the result of the following piece of code:public class Person{ public void talk(){ System.out.print("I am a Person"); }}public class Student extends Person{ public void talk(){ System.out.print("I am a Student"); }}public class Test{ public static void main(String args[]){ Person p = new Student(); p.talk(); }}I am a Person I am a Student I am a Person I am a StudentI am a Student I am a Person

class FourWheeler{    public FourWheeler()    {        System.out.println("Class FourWheeler");    }}class Car extends FourWheeler{    public Car()     {        System.out.println("Class Car");        }}class Audi extends Car{   public Audi()    {        super();        System.out.println("Class Audi");    }}class Driver{    public static void main(String args[])    {        Audi cc=new Audi();    }}

public class Employee { public int id; public String name; private int sal; public Employee(int id, String name , int sal) { this.id = id; this.name = name; this.sal = sal; } public void setSal(int sal) { this.sal = sal; } public int getSal() { return sal; } public static List<Employee> getEmpList() { List<Employee> list = new ArrayList<>(); list.add(new Employee(111, "A", 2000)); list.add(new Employee(222, "B", 3000)); list.add(new Employee(333, "C", 4000)); list.add(new Employee(444, "D", 5000)); return list; }}public class Appp { public static void main(String[] args) { List<Employee> list = Employee.getEmpList(); for(Employee e : list) { //line 1 e.setSal(e.getSal()*2); //line 2 } //line 3 }}Choose the appropriate option to replace code line 1 to 3 to get the same output from the program. listEmployees.forEach(e -> e.setSal(e.getSal()*2));for(Employee e : listEmployees) {e -> e.setSal(e.getSal()*2);}for(Employee e : listEmployees) {forEach(e -> e.setSal(e.getSal()*2));}for(Employee e : listEmployees) {e.forEach() -> e.setSal(e.getSal()*2);}SubmitPowered by Infosys Wingspan