Complete the following program by writing the code at the in of "i" and "j" instance variables. class SuperClass { private int i; private int j: SuperClass() { i = 1; j = 2; }} class B extends SuperClass { int a; B0 { super): } } class A1 { public static void main(String args[]) /l create an obiect bere and print tbe values of "i" and "i" here and print the values of "i" and
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- Write a class named Person with data attributes for a person’s name, address, and telephone number. Next, write a class named Customer that is a subclass of the Person class. The Customer class should have a data attribute for a customer number and a Boolean data attribute indicating whether the customer wishes to be on a mailing list. Demonstratean instance of the Customer class in a simple program.Hand-write two Java classes, Car and Truck. They are bothsubclasses of Vehicle.a. A car has an additional instance variable, number of doors.b. A truck has an additional instance variable, number of axlesc. Write a constructor that requires input for the instance variables of each class(including registration number and owner name).d. Write getters and setters for all instance variables for both classes.(Java) Make the 2 following classes: Employee.java EmployeeTest.java Copy and paste the below starter code into Employee.java: /** * Employee.java extends Person.java * @author * CIS 36B, Activity 11.1 */public class Employee extends Person { private static int numEmployees = 0; private double salary; private String title; /** * Default constructor for the * Employee class. Calls the * default constructor of the * superclass and also initializes * salary and title to default * values */ public Employee() { } /** * Multi-argument constructor for the * Employee class. Calls the * multi-argument constructor of the * superclass and also initializes * salary and title to the * specified values */ public Employee(String name, int age, String gender, Address a, double salary, String title) { } /** * Returns the annual salary * @return the salary */ public double…
- Consider the following class definitions public class SampleClass{ public String greet() {return "Greetings";} } public class SubClass extends SampleClass{ public string greet() {return "Hello";} } public class AnotherClass{ public String greet() {return "Hi";} } What can be said about the following code fragment? public class Driver { public static void main(String[] args){ Object p =new SampleClass(); System.out.println((AnotherClass).p),greet()); } } a. The above code compiles but causes runtime error. b. The above code has no issues. It compiles and runs. c. The above code causes compiler error.Write Java classes to solve the following problem: A company has two types of employees. These are called Exempt and NonExempt. Exempt means the employee is not eligible for overtime pay and is paid a fixed amount each pay period. NonExempt means the employee is paid by the hour and receives 1.5 times the hourly rate for hours worked over 40. Each Employee has an id number which is a string. They also have a name. Employee should be an abstract class with the member variables described in number 2. Employee should have an abstract method called findPay, a toString method, and it should implement the Comparable interface. Use alphabetical order of id number to determine less than, greater than, and equal to. The toString method should produce a string like the following: Emp: ID: 4590 Emp Name: Fred Jones Employee should have an equals method. Define two employees to be equal if they have the same name and the same id number. Provide accessor and mutators for Employee. NonExempt should…In the following there are two classes, Employee and Manager. Manager is a subclass of Employee. The implementation of Employee class is given (Note: no getter methods are provided, so you are not able to access instance variables through getter methods in the subclass). The skeleton of the Manager class definition is given. Complete the constructor method, and the toString method for the subclass (see the details below). public class Employee { private String name; private double salary; // Make an employee with a given name and salary. public Employee(String aName, double aSalary) { name = aName; salary = aSalary; } // Provide a string description of an employee. public String toString() { return "Name: " + name + "\tSalary: " + salary; } } public class Manager extends Employee { private String department; // Make a manager with a given name, salary, and department. public Manager(String name, double salary, String department) { // put your code below } // Provide a string…
- Consider the following class: public class theClass { private double value; private string str; public static int count; public theClass () { } public theClass (double d, int, x, String s) { } public void print() { } public static void incrementCount() { } } a) How many members do class theClass have? b) Compare the purpose of the two constructors. c) Use the reference this to write the definition of a method print( )to output the value of the instance data members separated by commas. d) Write a statement to create an object myClass of the class theClass and initialise the instance variables to 5, 10.75 and the string Class. e) Write a definition (heading) for a copy constructor for the class.Answer the given question with a proper explanation and step-by-step solution. public class MainClass{ public static void main(String[] args) { SomeClass myObject = new SomeClass(4, 5); int fred = SomeClass.SOME_VALUE; int barney = myObject.method1(); int wilma = SomeClass.method2(4); }} Which of the following is a static variable a method1 b method2 c SomeClass d SOME_VALUE e This cannot be determined by examining the above codeCLASS AND OBJECT WRITE! 1.) Write the main class of the given class Animal below that set the number of legs to “4” and display (get) the number of legs. class Animal { private int numberOfLegs; public void setNumberOfLegs(int numberOfLegs) { this.numberOfLegs = numberOfLegs; } public int getNumberOfLegs() { return numberOfLegs; } }
- Step-1 Imagine a Car Parts and Accessories shop, which requires a software system to keep track of stock items and prices. The shop will sell different kinds of stock items. However, to start with, you have been tasked with designing and implementing a class called StockItem with the following properties. An instance (object) of the StockItem class represents a particular item which the shop sells, with a string representing fixed stock code, an integer representing variable quantity in stock and a double representing variable price of the stocked item. All these variables should be declared as private variables. The StockItemclass also contains a class variable (shared by all instances) of type string representing stock category which you can initialise as 'Car accessories'. A constructor that creates a Stock Item with the specified quantity, price and the stock code. All the appropriate ‘setters’ and ‘getters’ methods, including a getStockName() method which returns the string…Write in java code: a) Write class Vehicle that is superclass and abstract write only one line in the class declaration(first line):b) Class Vehicle is a superclass that contains three non-abstract methods (three methods that are concrete, implemented in the class Vehicle); then class Vehicle cannot be abstract; T/F?c) The first step in problem-solving process is the Requirement Analysis ; T/F?d) Write the method salary1() that is abstract with two parameters (integer and double):e) The final method is a method in the super class that cannot be overridden in its subclasses; T/F?Convert the UML class diagram above into a java code with the following conditions The methods in the Pet class are abstract. Create a class called test. The main() method in the test class should create three Cat objects and two Budgie The main() method should also create indirectly an object of the Pet class. Demonstrate polymorphism in your test