What is outpout?
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- What is outpout? public class Vehicle { public void drive(){ System.out.println("Driving vehicle"); } public class Plane extends Vehicle { @Override public void drive(){ System.out.println("Flying plane"); } public static void main(String args[]) { Vehicle myVehicle myVehicle.drive(); } } = new Plane(); syntax error Driving vehicle Flying plane Flying plane O Driving vehiclePublic classTestMain { public static void main(String [ ] args) { Car myCar1, myCar2; Electric Car myElec1, myElec2; myCar1 = new Car( ); myCar2 = new Car("Ford", 1200, "Green"); myElec1 = new ElectricCar( ); myElec2 = new ElectricCar(15); } }public class Application { public static void main(String[] args) { Employee empl = new Employee(); empl.firstName = "Ali"; empl.lastName = "Omar"; empl.salary = 20000; Employee emp2 = new Employee(); emp2.firstName = "Mohamed"; emp2.lastName = "Nour"; emp2.salary = 30000; System.out.println("- System.out.printin("- empl.employeeSalary(); System.out.println("- empl.checkEmployeeSalary(emp1.salary, emp2.salary); System.out.printin("- System.out.println("- printEmployee(emp2); System.out.printin("- Employee employeeArr[] = new Employee[2]: employeeArr[0] = empl; employeeArr[1] = emp2; Application a = new Åpplication(); a.printArrayofEmployee(employeeArr); Non static (instance) start to call Static function to print ---------"); "); - Non Static function to print - --"); Non static (instance) start to call same class Static function to print --------); -"); Non Static function to print ----); System.out.println("- System.out.printin("- System.out.printin("Salary : " + Employee.salary);…
- interface StudentsADT{void admissions();void discharge();void transfers(); }public class Course{String cname;int cno;int credits;public Course(){System.out.println("\nDEFAULT constructor called");}public Course(String c){System.out.println("\noverloaded constructor called");cname=c;}public Course(Course ch){System.out.println("\nCopy constructor called");cname=ch;}void setCourseName(String ch){cname=ch;System.out.println("\n"+cname);}void setSelectionNumber(int cno1){cno=cno1;System.out.println("\n"+cno);}void setNumberOfCredits(int cdit){credits=cdit;System.out.println("\n"+credits);}void setLink(){System.out.println("\nset link");}String getCourseName(){System.out.println("\n"+cname);}int getSelectionNumber(){System.out.println("\n"+cno);}int getNumberOfCredits(){System.out.println("\n"+credits); }void getLink(){System.out.println("\ninside get link");}} public class Students{String sname;int cno;int credits;int maxno;public Students(){System.out.println("\nDEFAULT constructor…public class LabProgram { public static void main(String args[]) { Course course = new Course(); String first; // first name String last; // last name double gpa; // grade point average first = "Henry"; last = "Cabot"; gpa = 3.5; course.addStudent(new Student(first, last, gpa)); // Add 1st student first = "Brenda"; last = "Stern"; gpa = 2.0; course.addStudent(new Student(first, last, gpa)); // Add 2nd student first = "Jane"; last = "Flynn"; gpa = 3.9; course.addStudent(new Student(first, last, gpa)); // Add 3rd student first = "Lynda"; last = "Robison"; gpa = 3.2; course.addStudent(new Student(first, last, gpa)); // Add 4th student course.printRoster(); } } // Class representing a student public class Student { private String first; // first name private String last; // last name private double gpa; // grade point average…class Student { private int age = 18; public Student() { age = 19; } } public class Test { public static void main (String[] args){ Student s = new Student(); System.out.println (s.age); } }
- pleasepackage pkl public class Parent{ private String name; int id; public double fees private void assignName (String n) { Parent pr1= Parent(); this.name=n;} void assignld (int aid) { this.id=aid;} public void calcFees() { this.fees *=10;} }// Class package pk1 public class FollowUP { public void methodUP () { Select one: Check the code above and answer the following: pr1.name="M"; is accessible a False b. True }//Class package pk2 public class TrackMe{ public void methodMe () { Parent pr2 Parent(); = } }// Classpublic 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); Pet myPet = new Pet(); Cat myCat = new Cat(); String petName, catName, catBreed; int petAge, catAge; petName = scnr.nextLine(); petAge = scnr.nextInt(); scnr.nextLine(); catName = scnr.nextLine(); catAge = scnr.nextInt(); scnr.nextLine(); catBreed = scnr.nextLine(); // TODO: Create generic pet (using petName, petAge) and then…
- class Node { int key; Node l, r; public Node(int item) { key = item; l = r = null; }} class Main{ Node root; Main() { root = null; } void Postorder(Node node) { if (node == null) return; Postorder(node.l); Postorder(node.r); System.out.print(node.key + " "); } void Inorder(Node node) { if (node == null) return; Inorder(node.l); System.out.print(node.key + " "); Inorder(node.r); } void Preorder(Node node) { if (node == null) return; System.out.print(node.key + " "); Preorder(node.l); Preorder(node.r); } void Postorder() { Postorder(root); } void Inorder() { Inorder(root); } void Preorder() { Preorder(root); } public static void main(String[] args) { Main tree = new Main(); tree.root = new Node(27); tree.root.l =…public class Car { public void m1() { System.out.Rrintln("car 1"); } public void m2() { super.m1(); } public void m2() { Sustem.out.printla("car 2"); } public String toString() { return super toString() + super toString(); } public String toString() { return "vroom"; } } Create a client class and add the following statements. What is the output? Is it the same as you expected? public class Truck extends Car { public void m1() { System.out.Rrintin("truck 1"); } Truck mytruck = new Truck (); Sustem.out.printinlaxtruckl: // Output: mytruck.m1(); mytruck.m2(); // Output: // Output:public class Driver { /** * @param args */ static Scanner keyboard = new Scanner(System.in); publicstaticvoid main(String[] args) { Mailbox[] mailboxes = new Mailbox[5]; Mailbox mailbox1 = new Mailbox("gmail"); Mailbox mailbox2 = new Mailbox("outlook"); Mailbox mailbox3 = new Mailbox("icloud"); mailboxes[0] = mailbox1; mailboxes[1] = mailbox2; mailboxes[2] = mailbox3; Email email1 = new Email(); email1.setDate(new Date(2022, 11, 5)); email1.setSubject("Exam2 guidelines "); Email email2 = new Email(new Date(2021, 3, 5), true, "Quiz3 in Ch7"); Email email3 = new Email(); email3.setDate(new Date(2020, 11, 3)); email3.setSubject("Late submission policy"); mailbox2.addEmail(email1); mailbox2.addEmail(email2); mailbox2.addEmail(email3); // System.out.println("Hello! What would you like to do "); intselection = displayMenu(); while (selection != 5) { // selection = displayMenu(); switch (selection) { case 1: System.out.print("Enter the client: "); String…