Answer to Question #195689 in Java | JSP | JSF for Hamza baig

Question

Consider a class Computer having . Two fields ( i.e. companyName , price ) and A single function named show ( ) A class named Desktop inherits Computer class and adds fields representing color , monitor size , and processor type and Override function named show ( ) to display values of its all attributes . A class named Laptop inherits Computer class and adds fields representing color , size , weight , and processor type and Override function named show ( ) to display values of its all attributes . Write a main ( ) function that instantiates objects of derived classes to access respective show ( ) function using dynamic binding .

Answer 1

public class Computer {
    private String companyName;
    private double price;

    public Computer(String companyName, double price) {
        this.companyName = companyName;
        this.price = price;
    }

    public void show() {
        System.out.println("Company name: " + companyName + ", price: " + price);
    }
}

public class Desktop extends Computer {
    private String color;
    private double monitorSize;
    private String processorType;

    public Desktop(String companyName, double price, String color, double monitorSize, String processorType) {
        super(companyName, price);
        this.color = color;
        this.monitorSize = monitorSize;
        this.processorType = processorType;
    }

    @Override
    public void show() {
        super.show();
        System.out.println("Color: " + color + ", monitor size: " + monitorSize + ", processor type: " + processorType);
    }
}

public class Laptop extends Computer {
    private String color;
    private double size;
    private double weight;
    private String processorType;

    public Laptop(String companyName, double price, String color, double size, double weight, String processorType) {
        super(companyName, price);
        this.color = color;
        this.size = size;
        this.weight = weight;
        this.processorType = processorType;
    }

    @Override
    public void show() {
        super.show();
        System.out.println("Color: " + color + ", size: " + size + ", weight: " + weight + ", processor type: " + processorType);
    }
}

public class Main {
    public static void main(String[] args) {
        Computer desktop = new Desktop("HP",125.6,"Red",24,"ARM");
        Computer laptop = new Laptop("Dell",200.4,"Red",24,10,"RISC");
        desktop.show();
        System.out.println();
        laptop.show();
    }
}