Please check the question with the given image and revised it if the code is complete. If not, please add what is missing. Please add comments on what you did. in Java eclipse. please see the code below: class Computer { private String model; private String brandName; private String manufacturingDate; private int numberOfCores; public Computer() { } public Computer(String model, String brandName, String manufacturingDate, int numberOfCores) { this.model = model; this.brandName = brandName; this.manufacturingDate = manufacturingDate; this.numberOfCores = numberOfCores; } public String getModel() { return model; } public void setModel(String model) { this.model = model; } public String getBrandName() { return brandName; } public void setBrandName(String brandName) { this.brandName = brandName; } public String getManufacturingDate() { return manufacturingDate; } public void setManufacturingDate(String manufacturingDate) { this.manufacturingDate = manufacturingDate; } public int getNumberOfCores() { return numberOfCores; } public void setNumberOfCores(int numberOfCores) { this.numberOfCores = numberOfCores; } @Override public String toString() { return "Computer{" + "model='" + model + '\'' + ", brandName='" + brandName + '\'' + ", manufacturingDate='" + manufacturingDate + '\'' + ", numberOfCores=" + numberOfCores + '}'; } } class Desktop extends Computer{ private double width; private double height; // Default constructor public Desktop() { } // All argument constructor public Desktop(String model, String brandName, String manufacturingDate, int numberOfCores, double width, double height) { super(model, brandName, manufacturingDate, numberOfCores); this.width = width; this.height = height; } // Getter for width public double getWidth() { return width; } // Setter for width public void setWidth(double width) { this.width = width; } // Getter for height public double getHeight() { return height; } // Setter for height public void setHeight(double height) { this.height = height; } // Overridden toString() method @Override public String toString() { return "Desktop{" + "width=" + width + ", height=" + height + '}'; } } class Laptop extends Computer{ private double weight; // Default constructor public Laptop() { } // All argument constructor public Laptop(String model, String brandName, String manufacturingDate, int numberOfCores, double weight) { super(model, brandName, manufacturingDate, numberOfCores); this.weight = weight; } // Getter for weight public double getWeight() { return weight; } // Setter for weight public void setWeight(double weight) { this.weight = weight; } // Overridden toString() method @Override public String toString() { return "Laptop{" + "weight=" + weight + '}'; } } public class TestComputer { public static void main(String[] args) { Computer c1= new Computer ("Inspiron 1545", "DELL", "April 1, 2020", 2);//Object 1 System.out.println("Model Number : " + c1.getModelNumber()); System.out.println("BrandName : " + c1.getBrandName()); System.out.println("manufacturingDate : " + c1.getManufacturingDate()); System.out.println("NumberOfCores: " + c1.getNumberOfCores()); System.out.println(" "); //Object 2 Computer c2= new Computer ("A2338", "Macbook", "March 31, 2020 ", 4);//Object 1 System.out.println("Model Number : " + c2.getModelNumber()); System.out.println("BrandName : " + c2.getBrandName()); System.out.println("manufacturingDate : " + c2.getManufacturingDate()); System.out.println("NumberOfCores: " + c2.getNumberOfCores()); System.out.println(" "); //Object 3 (my own object) Computer c3= new Computer ("1165G7", "HP", "October 15, 2014", 7);//Object 1 System.out.println("Model Number : " + c3.getModelNumber()); System.out.println("BrandName : " + c3.getBrandName()); System.out.println("manufacturingDate : " + c3.getManufacturingDate()); System.out.println("NumberOfCores: " + c3.getNumberOfCores()); System.out.println(" "); //Object for Desktop Desktop d1= new Desktop ();//Object 1 System.out.println("The width is : " + d1.getWidth()); System.out.println("The height is : " + d1.getHeight()); System.out.println(" "); //Object for Laptop Laptop l1= new Laptop ();//Object 1 System.out.println("The weight is : " + l1.getWeight()); } }

Please check the question with the given image and revised it if the code is complete. If not, please add what is missing. Please add comments on what you did. in Java eclipse. please see the code below: class Computer { private String model; private String brandName; private String manufacturingDate; private int numberOfCores; public Computer() { } public Computer(String model, String brandName, String manufacturingDate, int numberOfCores) { this.model = model; this.brandName = brandName; this.manufacturingDate = manufacturingDate; this.numberOfCores = numberOfCores; } public String getModel() { return model; } public void setModel(String model) { this.model = model; } public String getBrandName() { return brandName; } public void setBrandName(String brandName) { this.brandName = brandName; } public String getManufacturingDate() { return manufacturingDate; } public void setManufacturingDate(String manufacturingDate) { this.manufacturingDate = manufacturingDate; } public int getNumberOfCores() { return numberOfCores; } public void setNumberOfCores(int numberOfCores) { this.numberOfCores = numberOfCores; } @Override public String toString() { return "Computer{" + "model='" + model + '\'' + ", brandName='" + brandName + '\'' + ", manufacturingDate='" + manufacturingDate + '\'' + ", numberOfCores=" + numberOfCores + '}'; } } class Desktop extends Computer{ private double width; private double height; // Default constructor public Desktop() { } // All argument constructor public Desktop(String model, String brandName, String manufacturingDate, int numberOfCores, double width, double height) { super(model, brandName, manufacturingDate, numberOfCores); this.width = width; this.height = height; } // Getter for width public double getWidth() { return width; } // Setter for width public void setWidth(double width) { this.width = width; } // Getter for height public double getHeight() { return height; } // Setter for height public void setHeight(double height) { this.height = height; } // Overridden toString() method @Override public String toString() { return "Desktop{" + "width=" + width + ", height=" + height + '}'; } } class Laptop extends Computer{ private double weight; // Default constructor public Laptop() { } // All argument constructor public Laptop(String model, String brandName, String manufacturingDate, int numberOfCores, double weight) { super(model, brandName, manufacturingDate, numberOfCores); this.weight = weight; } // Getter for weight public double getWeight() { return weight; } // Setter for weight public void setWeight(double weight) { this.weight = weight; } // Overridden toString() method @Override public String toString() { return "Laptop{" + "weight=" + weight + '}'; } } public class TestComputer { public static void main(String[] args) { Computer c1= new Computer ("Inspiron 1545", "DELL", "April 1, 2020", 2);//Object 1 System.out.println("Model Number : " + c1.getModelNumber()); System.out.println("BrandName : " + c1.getBrandName()); System.out.println("manufacturingDate : " + c1.getManufacturingDate()); System.out.println("NumberOfCores: " + c1.getNumberOfCores()); System.out.println(" "); //Object 2 Computer c2= new Computer ("A2338", "Macbook", "March 31, 2020 ", 4);//Object 1 System.out.println("Model Number : " + c2.getModelNumber()); System.out.println("BrandName : " + c2.getBrandName()); System.out.println("manufacturingDate : " + c2.getManufacturingDate()); System.out.println("NumberOfCores: " + c2.getNumberOfCores()); System.out.println(" "); //Object 3 (my own object) Computer c3= new Computer ("1165G7", "HP", "October 15, 2014", 7);//Object 1 System.out.println("Model Number : " + c3.getModelNumber()); System.out.println("BrandName : " + c3.getBrandName()); System.out.println("manufacturingDate : " + c3.getManufacturingDate()); System.out.println("NumberOfCores: " + c3.getNumberOfCores()); System.out.println(" "); //Object for Desktop Desktop d1= new Desktop ();//Object 1 System.out.println("The width is : " + d1.getWidth()); System.out.println("The height is : " + d1.getHeight()); System.out.println(" "); //Object for Laptop Laptop l1= new Laptop ();//Object 1 System.out.println("The weight is : " + l1.getWeight()); } }

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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Please check the question with the given image and revised it if the code is complete. If not, please add what is missing. Please add comments on what you did. in Java eclipse.

please see the code below:

class Computer {
private String model;
private String brandName;
private String manufacturingDate;
private int numberOfCores;

public Computer() {
}

public Computer(String model, String brandName, String manufacturingDate, int numberOfCores) {
this.model = model;
this.brandName = brandName;
this.manufacturingDate = manufacturingDate;
this.numberOfCores = numberOfCores;
}

public String getModel() {
return model;
}

public void setModel(String model) {
this.model = model;
}

public String getBrandName() {
return brandName;
}

public void setBrandName(String brandName) {
this.brandName = brandName;
}

public String getManufacturingDate() {
return manufacturingDate;
}

public void setManufacturingDate(String manufacturingDate) {
this.manufacturingDate = manufacturingDate;
}

public int getNumberOfCores() {
return numberOfCores;
}

public void setNumberOfCores(int numberOfCores) {
this.numberOfCores = numberOfCores;
}

@Override
public String toString() {
return "Computer{" +
"model='" + model + '\'' +
", brandName='" + brandName + '\'' +
", manufacturingDate='" + manufacturingDate + '\'' +
", numberOfCores=" + numberOfCores +
'}';
}
}

class Desktop extends Computer{
private double width;
private double height;

// Default constructor
public Desktop() {
}

// All argument constructor
public Desktop(String model, String brandName, String manufacturingDate, int numberOfCores, double width, double height) {
super(model, brandName, manufacturingDate, numberOfCores);
this.width = width;
this.height = height;
}

// Getter for width
public double getWidth() {
return width;
}

// Setter for width
public void setWidth(double width) {
this.width = width;
}

// Getter for height
public double getHeight() {
return height;
}

// Setter for height
public void setHeight(double height) {
this.height = height;
}

// Overridden toString() method
@Override
public String toString() {
return "Desktop{" +
"width=" + width +
", height=" + height +
'}';
}
}

class Laptop extends Computer{
private double weight;

// Default constructor
public Laptop() {
}

// All argument constructor
public Laptop(String model, String brandName, String manufacturingDate, int numberOfCores, double weight) {
super(model, brandName, manufacturingDate, numberOfCores);
this.weight = weight;
}

// Getter for weight
public double getWeight() {
return weight;
}

// Setter for weight
public void setWeight(double weight) {
this.weight = weight;
}

// Overridden toString() method
@Override
public String toString() {
return "Laptop{" +
"weight=" + weight +
'}';
}
}

public class TestComputer {

public static void main(String[] args) {
Computer c1= new Computer ("Inspiron 1545", "DELL", "April 1, 2020", 2);//Object 1
System.out.println("Model Number : " + c1.getModelNumber());
System.out.println("BrandName : " + c1.getBrandName());
System.out.println("manufacturingDate : " + c1.getManufacturingDate());
System.out.println("NumberOfCores: " + c1.getNumberOfCores());
System.out.println(" ");
//Object 2
Computer c2= new Computer ("A2338", "Macbook", "March 31, 2020 ", 4);//Object 1
System.out.println("Model Number : " + c2.getModelNumber());
System.out.println("BrandName : " + c2.getBrandName());
System.out.println("manufacturingDate : " + c2.getManufacturingDate());
System.out.println("NumberOfCores: " + c2.getNumberOfCores());
System.out.println(" ");
//Object 3 (my own object)
Computer c3= new Computer ("1165G7", "HP", "October 15, 2014", 7);//Object 1
System.out.println("Model Number : " + c3.getModelNumber());
System.out.println("BrandName : " + c3.getBrandName());
System.out.println("manufacturingDate : " + c3.getManufacturingDate());
System.out.println("NumberOfCores: " + c3.getNumberOfCores());
System.out.println(" ");

//Object for Desktop
Desktop d1= new Desktop ();//Object 1
System.out.println("The width is : " + d1.getWidth());
System.out.println("The height is : " + d1.getHeight());
System.out.println(" ");
//Object for Laptop
Laptop l1= new Laptop ();//Object 1
System.out.println("The weight is : " + l1.getWeight());


}

}

Transcribed Image Text:**Educational Website Content: Java Programming Guide** ### Part 1: Create a Parent Class Create a complete Java class `Computer` that can be used to create the object as described below: #### A Computer Has: - **Model** - **Brand Name** - **Manufacturing Date** - **Number of Cores** #### Requirements: a) Add all instance variables (data encapsulation is expected). b) The class must have getters and setters for all instance variables. c) The class must have a no-arg constructor and another constructor that receives input parameters for each instance variable. d) Implement `toString()` method for this class to print the contents of the data fields. ### Part 2: Test a Parent Class Write a Java program `TestComputer`, which creates three `Computer` objects with the information below: a) - **Model Number**: Inspiron 1545 - **Brand Name**: DELL - **Manufacturing Date**: April 1, 2020 - **Number of Cores**: 2 b) - **Model Number**: A2338 - **Brand Name**: MacBook - **Manufacturing Date**: March 31, 2020 - **Number of Cores**: 4 c) Create your own object. You can mimic your actual personal computer or use a no-args constructor. ### Part 3: Create Two Child Classes Create two Java classes, `Desktop` and `Laptop` that are both subclasses of `Computer`. a) **A Desktop** has additional instance variables: `width` and `height` (data encapsulation is expected). b) **A Laptop** has an additional instance variable, `weight` (data encapsulation is expected). 1) Write constructors for both classes that require input for all their instance variables (including `Model Number`, `Brand Name`, `Manufacturing Date` and `Number of Cores`) as well as their own instance variables. Use a no-args constructor. 2) Create getters and setters for all instance variables for both child classes. 3) Create `toString()` methods (overridden) in `Desktop` and `Laptop` classes. ### Part 4: Test Two Child Classes Test your newly created classes using the same `TestComputer` program you previously created; create two new `Laptop` and `Desktop` with the data of your

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