What is the output of the following code? public class Test{ public static void main(String[] args) { new Animal(); new Lion(); } olleges of Applied Sciences ITDR2104 Programming Fall 2016 Page 6 of 13 public class Lion extends Mammal { public Lion() { this("Invoke Lion's overloaded constructor"); System.out.println("Lion's no-arg constructor is invoked"); } public Lion(String s) { System.out.println(s); } class Mammal extends Animal { public Mammal (() { System.out.println("Mammal's no-arg constructor is invoked"); } } class Animal { public Animal() { System.out.println("Animal's no-arg constructor is invoked"); } }

What is the output of the following code? public class Test{ public static void main(String[] args) { new Animal(); new Lion(); } olleges of Applied Sciences ITDR2104 Programming Fall 2016 Page 6 of 13 public class Lion extends Mammal { public Lion() { this("Invoke Lion's overloaded constructor"); System.out.println("Lion's no-arg constructor is invoked"); } public Lion(String s) { System.out.println(s); } class Mammal extends Animal { public Mammal (() { System.out.println("Mammal's no-arg constructor is invoked"); } } class Animal { public Animal() { System.out.println("Animal's no-arg constructor is invoked"); } }

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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A1. Find the output of the following code in order. public class Faculty extends Employee ( E public static void main (String[) args) ( new Faculty () : System.out.println("GCood Luck") public Faculty () ( System.out.println(" Eaculty's no-arg constructor is invoked"): class Employee extends Person ( public Employee () ( System.ont.println( Employee's no-arg constructor is invoked") class Person ( public Person () ( this ("Invoke Person s overloaded constructor"); System.oub.println('Person s no-arg constructor is invoked"); public Person (String s) ( System.out.println(s) ロ

Please encode these classes and run them for inspection/analysis/scrutiny.
Beginning tests. UNIT TEST FAILED: addInventory() Tests complete. Note: UNIT TEST FAILED is preceded by 3 spaces. 25 24 public class CallInventoryTag { public static void main(String [] args) { Scanner scnr = new Scanner (System.in); InventoryTag redSweater new InventoryTag(); int sweaterShipment; int sweaterInventoryBefore; 25 26 27 28 29 30 31 32 SweaterInventoryBefore redSweater.getQuantityRemaining() SweaterShipment = scnr.nextInt(); 33 34 System.out.println("Beginning tests."); 35 36 37 11 FIME add unit test for addInventory 38 1o Your solution goes here / 39 42 System.out.printin("Tests complete."); 42 )
Consider :Cat c = new tiger();What will be the result of c.getWieght();
14. Which statements are true about the following code? (Choose all that apply) 1: interface HasVocalCords {2: public abstract void makeSound();3: }4: public interface CanBark extends HasVocalCords {5: public void bark();6: } A. The CanBark interface doesn’t compile.B. A class that implements HasVocalCords must override the makeSound() method.C. A class that implements CanBark inherits both the makeSound() and bark() methods.D. A class that implements CanBark only inherits the bark() method.E. An interface cannot extend another interface. Please explain this code abstract, extent and interface methods too in detail.
// This class discounts prices by 10% public class DebugFour4 { public static void main(String args[]) { final double DISCOUNT_RATE = 0.90; int price = 100; double price2 = 100.00; tenPercentOff(price DISCOUNT_RATE); tenPercentOff(price2 DISCOUNT_RATE); } public static void tenPercentOff(int p, final double DISCOUNT_RATE) { double newPrice = p * DISCOUNT_RATE; System.out.println("Ten percent off " + p); System.out.println(" New price is " + newPrice); } public static void tenPercentOff(double p, final double DISCOUNT_RATE) { double newPrice = p * DISCOUNT_RATE; System.out.println"Ten percent off " + p); System.out.println(" New price is " + newprice); } }
I wrote my codes like this: public class OrderApp { public void main(String[] args) { FoodOrder foodOrder; } } public class Customer { private String name; public void chageCrditCard() { } } public class FoodOrder { Customer customer; private long orderNumber; public void addItem (MenuItem i) { } public double getTotalCost() { return 0.00; } } public class MenuItem { public String name; protected double price; public double getPrice() { return price; } } public class ComboMeal extends MenuItem { private double discount; public double getPrice() { return price; } public void addItem (MenuItem i) { } } I'm not sure If I did the relationship between classes and implement each one right. Also, how do I express multiplicities and specifiers in the codes? And finally, please review the whole thing. Subject: Java Programming
class IndexItem { public: virtual int count() = 0; virtual void display()= 0; };class Book : public IndexItem { private: string title; string author; public: Book(string title, string author): title(title), author(author){} virtual int count(){ return 1; } virtual void display(){ /* YOU DO NOT NEED TO IMPLEMENT THIS FUNCTION */ } };class Category: public IndexItem { private: /* fill in the private member variables for the Category class below */ ? int count; public: Category(string name, string code): name(name), code(code){} /* Implement the count function below. Consider the use of the function as depicted in main() */ ? /* Implement the add function which fills the category with contents below. Consider the use of the function as depicted in main() */ ? virtualvoiddisplay(){ /* YOU DO NOT NEED TO IMPLEMENT THIS FUNCTION */ } };
package go; package demo; public class Pokemon { import ; // import Pokemon class (#1) private int hitPoints; static int population; public class Main { public static void main(String[] args) { void attack() { // implementation this.evolve(); } public void evolve() { // implementation } } Pokemon pika = new Pokemon(); pika.hitPoints = 30; (#2) System.out.print(Pokemon.population);(#3) pika.attack(); (#4) pika.evolve(); (#5) } 1. How can we retrieve the value of hitPoints without allowing any other class to change its value? a) Change the access modifier of bitPoints to public b) Change the access modifier of hitPoints to default c) Make the hitPoints a static attribute d) Declare a new public method, say şetHitPoints(int value), that sets the value of hitPoints e) None of the above
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