Find the Error. interface DAO{ public double getMax(); public abstract double getAverage(); } abstract class Human{ public abstract void study(); public void showValue(Number i){ System.out.println(i); } } class B extends Human implements DAO{ public void study() { System.out.println("Study OOP"); } public double getMax() { return 30; } public double getAverage() { return 14.5; } @Override public void getAccess() { System.out.println("233"); } } public class AbstractionAndInterface { public static void main(String[] args) { Human h = new B(); double res = h.getMax(); System.out.println(res); B b = new B(); System.out.println(b.getAverage()); b.getAccess(); } } public interface DAO2 { public void getAccess(); public abstract void printOutput(); }

Find the Error. interface DAO{ public double getMax(); public abstract double getAverage(); } abstract class Human{ public abstract void study(); public void showValue(Number i){ System.out.println(i); } } class B extends Human implements DAO{ public void study() { System.out.println("Study OOP"); } public double getMax() { return 30; } public double getAverage() { return 14.5; } @Override public void getAccess() { System.out.println("233"); } } public class AbstractionAndInterface { public static void main(String[] args) { Human h = new B(); double res = h.getMax(); System.out.println(res); B b = new B(); System.out.println(b.getAverage()); b.getAccess(); } } public interface DAO2 { public void getAccess(); public abstract void printOutput(); }

Microsoft Visual C#

7th Edition

ISBN:9781337102100

Author:Joyce, Farrell.

Publisher:Joyce, Farrell.

Chapter9: Using Classes And Objects

Section: Chapter Questions

Problem 19RQ

See similar textbooks

Similar questions

Course Title: Modern Programming Language Please Java Language Code and Correct Code Please Question : Design an abstract class GeometricObject. GeometricObject must ensure that its children must implement calcArea() method. Design Rectangle18ARID2891 and CircleMJibranAkram Classes as children of GeometricObject class with overridden toString() method to return “Rectangle18ARID2891 with w Width and h Height is drawn” OR “CircleMJibranAkram with r Radius is drawn”. The attributes of Rectangle18ARID2891 are length, width. The attribute of CircleMJibranAkram is radius Hint: Area of circle=πr2 , Area of rectangle= width*length
methode code below abstract class Method { // declaration of variables protected int input; protected String output; // Abstract methods public abstract boolean isHard(); public abstract String specificWay(); public abstract void Method(); public abstract void Method(int input, String output); // Getter methods for the input field public int getInput() { return this.input; } // Setter methods for the input field public void setInput(int input) { this.input = input; } // Getter methods for the output field public String getOutput() { return this.output; } // Setter methods for the output field public void setOutput(String output) { this.output = output; } // Custom string representation of the object public String toString() { return "Method"; }}
Course Title: Modern Programming Language Please Java Language Code Question : Design an abstract class GeometricObject. GeometricObject must ensure that its children must implement calcArea() method. Design Rectangle18-ARID-2891 and CircleM.JibranAkram Classes as children of GeometricObject class with overridden toString() method to return “Rectangle with w Width and h Height is drawn” OR “Circle with r Radius is drawn”. The attributes of Rectangle are length, width. The attribute of Circle is radius Hint: Area of circle=πr2 , Area of rectangle= width*length
Let’s build a Player Portfolio System that has an abstract class. Create a new Player Abstract class. Implement getName method in this abstract class. Define other methods as abstract. Here is an example: abstract class PlayerA {private String name;public String getNameA(){return name;}public PlayerA(String name) {this.name = name;}abstract public int getStatsA();abstract public String getSportA();} Create NFL Player and NBA Player concrete classes that will extend Player abstract class. Create a main method to implement your classes
An abstract class's parent class's abstract methods must all be implemented by its subclasses. Is it real or not?
A subclass of an abstract class is required to implement all of the abstract methods of the parent class. Is it correct or incorrect?
Abstract methods must be implemented by any subclass of an abstract class that is derived from it. Whether or if it's accurate
Consider the following classes: public abstract class Cat { private int age; private double weight; private double top_speed; public void run(double newSpeed) { ... } private void eat(double portionSize) { ... } // ... -> getXXX() and setXXX() methods here } } public class Cheetah extends Cat { private String type; public Cheetah(int age, double wt, double sp, String type) { this.type = type; setAge(age); setWeight(wt); setTopSpeed(sp); } private void run(double newSpeed) { ... } public void camouflage() { ... } // ... -> // getXXX() // and setXXX() methods here } } Which design principles are violated by these classes? Explain it and then correct it
write program in java Design an abstract class GeometricObject. GeometricObject must ensure that its children must implement calcArea() method. Design RectangleYourRegNo and CircleYourName Classes as children of GeometricObject class with overridden toString() method to return “Rectangle with w Width and h Height is drawn” OR “Circle with r Radius is drawn”. The attributes of Rectangle are length, width. The attribute of Circle is radius Hint: Area of circle=πr2 , Area of rectangle= width*length
Using the ABCMeta class as the abstract class's metaclass, implement an abstract class inPython. Hint: Create a code snippet.
Let’s build a Player Portfolio System that has abstract classes. Inheritance using Abstract: Create a new Player Abstract class. Implement getName method in this abstract class. Define other methods as abstract. Here is an example: Abstract class PlayerA {private String name;public String getNameA(){return name;}public PlayerA(String name) {this.name = name;}abstract public int getStatsA();abstract public String getSportA();} Create NFL Player and NBA Player concrete classes that will extend Player abstract class. Think of meh=thods for these two classes and implement them Develop appropriate unit tests.
Code: import java.util.*; //Bicycle interface interface Bicycle { abstract void changeCadence(int newValue); //will change value of candence to new value abstract void changeGear (int newValue); //changes gear of car abstract void speedUp(int increment); //increments speed of car by adding new Value to existing speed abstract void applyBrakes(int decrement); } //ACMEBicycle class definition class ACMEBicycle implements Bicycle { int cadence = 0; Â Â int speed = 0; Â Â int gear = 1; //methods of interface public void changeCadence(int newValue) { this.cadence=newValue; } public void changeGear (int newValue) { this.gear=newValue; } public void speedUp(int increment) { this.speed+=increment; } public void applyBrakes(int decrement) { this.speed-=decrement; } //display method void display() { System.out.println("Cadence: "+this.cadence); System.out.println("Gear: "+this.gear); System.out.println("Speed: "+this.speed); } } //KEYOBicycle class definition class KEYOBicycle implements…