Part 3. Create two Child Classes Create two Java classes, Desktop and Laptop that both are 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) c) Write constructors for both classes that require input for all their instance variables (including Manufacturing Date, Disk size, Number of cores and Color) and no-args constructors. d) Create getters and setters for all instance variables for both Child classes. e) Create toString() methods in Desktop and Laptop

1). Write a java abstract class called Solid and you will derive two classes – Cylinder and Sphere – from Solid. The class Solid Member variables type whose data type is String. For example, the type could be sphere, cube, parallelepiped. 2). The methods should include: A default or null constructor A constructor that initializes the value of type Getters and Setters An abstract method to find volume whose signature is public abstract double findVolume(); An abstract method to find surface area whose signature is public abstract double findSurfaceArea() a toString method that returns a string like the following Solid Type: Sphere an equals method that returns true if two Solid objects have the same type and false otherwise. 3). The class Cylinder - Cylinder will extend Solid Member variables: Cylinder inherits type from Solid radius of type double height of type double  Methods: a default or null constructor a constructor that initializes type, radius, and height. type will always…

1)Create a complete Java class that can be used to create a Computer object as described below:A Computer has a:- Manufacturer- Disk Size- Manufacturing Date- Number of coresa) 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 two constructors: a no-arg constructor and a constructor thatreceives input parameters for each instance variable.d) Implement a toString() method for your class.     2)Write a Java program TestComputer, which creates three Computer objects with the informationbelow:a) - Manufacturer: Dell- Disk Size: 1189160321024 bytes- Manufacturing Date: April 1, 2020- Number of cores: 2b) - Manufacturer: Apple Inc- Disk Size: 269283712040 bytes- Manufacturing Date: March 31, 2020- Number of cores: 4c) Create your own Object. You can mimic your actual personal computer or use a no-argsconstructor.Print the three objects using toString() method to show all data fields

Java Program  This assignment requires one project with two classes. Class Employee Class Employee- I will attach the code for this:  //Import the required packages. import java.text.DecimalFormat; import java.text.NumberFormat;   //Define the employee class. class Employee {    //Define the data members.  private String id, lastName, firstName;  private int salary;    //Create the constructor.  public Employee(String id, String lastName,              String firstName, int salary) {      this.id = id;      this.lastName = lastName;      this.firstName = firstName;      this.salary = salary;  }    //Define the getter methods.  public String getId() {      return id;  }  public String getLastName() {      return lastName;  }  public String getFirstName() {      return firstName;  }  public int getSalary() {      return salary;  }    //Define the method to return the employee details.  @Override  public String toString() {           //Use number format and decimal format      //to…