public class Car { public void m1( { Sustem.Qut.printla("car 1"); } public void m2() { super.m1(); } public void m2() { System.Qut.printla("car 2"); } public String toString() { return şuper.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.Qut.printlal"truck 1"); } Truck mytruck = new Truck (): System.out.printinlmxtuckl: // Output: mytruck.m1(); mytruck.m2(); // Output: // Output:

public class Car { public void m1( { Sustem.Qut.printla("car 1"); } public void m2() { super.m1(); } public void m2() { System.Qut.printla("car 2"); } public String toString() { return şuper.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.Qut.printlal"truck 1"); } Truck mytruck = new Truck (): System.out.printinlmxtuckl: // Output: mytruck.m1(); mytruck.m2(); // Output: // Output:

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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Public 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 Geometry{public static void main(String[] args){//asks for user's choice Scanner in = new Scanner(System.in);displayMenu();selectOption(choice);System.out.println("Enter your choice (1-3): ");int choice1 = in.nextInt();System.out.println("Thanks for using the Geometry Calculator - Goodbye!");//Prints if input is a number that is not one of the choiceswhile(choice1 < 1 || choice1 > 3 ){System.out.println("Invalid choice. Please enter 1 - 3: ");choice1 = in.nextInt();}}/**Displays the menu*/public static void displayMenu(){System.out.println("Welcome to the Geometry Calculator Application");System.out.println("1. Calculate the Area of a Circle");System.out.println("2. Calculate the Area of a Rectangle");System.out.println("3. Calculate the Area of a Triangle");}/** This method calculates the area of the circle@return the area of the circle*/public static double circle()// calculates the area of the circle{Scanner in = new Scanner(System.in);System.out.println("What is…
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 vehicle
class Param3 { public int x; private void increase(int p) { x = x*p; } public void calculateX(int y) { increase(y); } public int getX() { return x; } } // in another class Param3 q3 = new Param3(); q3.x = 5; q3.calculateX(7); System.out.println(q3.getX()); what would be the answer for the last two lines ? also above were x = x*p do both x in here are the fields? wouldn't that be cnofusing?
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); 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…
Question 13 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= = new Plane(); myVehicle.drive(); } Driving vehicle syntax error Flying plane Driving vehicle Flying plane }
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); } }
Trace through the following program and show the output. Show your work for partial credit. public class Employee { private static int empID = 1111l; private String name , position; double salary; public Employee(String name) { empID ++; this.name 3 пате; } public Employee(Employee obj) { empID = obj.empĪD; пате %3D оbj.naте; position = obj.position; %3D public void empPosition(String empPosition) {position = empPosition;} public void empSalary(double empSalary) { salary = empSalary;} public String toString() { return name + " "+empID + " "+ position +" $"+salary; public void setName(String empName){ name = empName;} public static void main(String args[]) { Employee empOne = new Employee("James Smith"), empTwo; %3D empOne.empPosition("Senior Software Engineer"); етрOпе.етpSalary(1000); System.out.println(empOne); еmpTwo empTwo.empPosition("CEO"); System.out.println(empOne); System.out.println(empTwo); %3D етpОпе empOne ;
package 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(); = } }// Class
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public class Animal { public static int population; private int age; } public Animal (int age) { this.age = age; population++; } + msg); public void say (String msg) { System.out.print("Saying: " System.out.print(" for "); System.out.print(getHuman Years()); System.out.println(" years."); } public int getHuman Years() { return age; } public class Mammal extends Animal { private String species; public Mammal(String species, int age) { super (age); this. species species; } } } = public int getHuman Years() { if (species.equals("dog")) 1 else return super.getHumanYears() * 7; return super.getHumanYears(); €
public class MyOutput { public static void main(String[] args) { int totalNumbers=6; Double dblAverage=4.5; Integer yourNumber= new Integer (20); int result=yourNumber+88; String myMessage="Exam"; System.out.println(totalNumbers+dblAverage+myMessage+result); }