Java program: 1. Create a class named Rectangle that has instance variables height and width. Provide a constructor that initializes the instance variables based on parameter values, getter and setter methods for the instance variables, a toString method, and a method named computeSurfaceArea(), that returns the surface area of the rectangle. 2. Create a child class named RectPrism that contains an additional instance variable named depth. Provide a constructor, getter and setter methods for the new instance variable, and a method named computeVolume(), that returns the volume of the rectangular prism. Override the toString() and the computeSurfaceArea() methods. 3. Write an application called Demo, that instantiates a rectangle and a rectangular prism, and tests all the methods.

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…

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…

Write a complete Java class that can be used to create a Fish object as described below: A Fish has-a: - name age - type favorite food a) Add all instance variables b) The class must have getters and setters for all instance variables c) The class must have two constructors: a no-args constructor and a constructor that receives all data fields as parameters d) The class must have a toString() e) Add a main method and create 2 Fishes using each of the constructors you created