Car industry is producing 3 types of cars: Disel, Petrol and LPG. In the Java programming language, implement the following entities (select appropriate interface or class) for Cars (two properties: consumption and distance) and two methods:

C++ Programming: From Problem Analysis to Program Design

8th Edition

ISBN:9781337102087

Author:D. S. Malik

Publisher:D. S. Malik

Chapter11: Inheritance And Composition

Section: Chapter Questions

Problem 9PE

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The Java Programming class has two types – remote and in-person. For remote students, the weighted score comprises of midterm, final, assignments and discussion. The weights for each are 30%, 30%, 30% and 10% respectively. For in-person students, the weighted score comprises of midterm, final and assignments. The weights for each are 30%, 30% and 40%. Write a generic class Students.java which has a constructor that takes three parameters – id, name, and type. Type will represent if the student is ‘remote’ or ‘in-person’. A toString() method in this class will display these details for any student. A generic method score() will be part of this class and it will be implemented by inherited classes. Write accessors and mutators for all data points. Write two classes RemoteStudents.java and InPersonStudents.java that inherits from Student class. Show the use of constructor from parent class (mind you, RemoteStudents have one additional parameter – discussion). Implement the abstract method…
use java (ArrayList, inheritance, polymorphism, File I/O and basic Java) Student class: First, you need to design, code in Java, test and document a base class, Student. The Student class will have the following information, and all of these should be defined as Private: A first name (given name) A last name (family name/surname) Student number (ID) – an integer number (of type long) The Student class will have at least the following constructors and methods: (i) two constructors - one without any parameters (the default constructor), and one with parameters to give initial values to all the instance variables of Student. (ii) only necessary set and get methods for a valid class design. (iii) a reportGrade method, which you have nothing to report here, you can just print to the screen a message “There is no grade here.”. This method will be overridden in the respective child classes. (iv) an equals method which compares two student objects and returns true if they…
Do the following program in Java Eclipse. Java Class that can be used to create a Fruit object as described below: A fruit has - a: - Date of Harvest -Color -Weight -Number of seeds 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 and a constructor that receives input for each instance variables. d. The parent class is abstract. e. its 1 abstract method and has toString() method f. its 2 children (concrete) also have toString() methods.
In Java, specify, design, and implement a class called statistician. After a statistician is initialized, it can be given a sequence of double numbers. Each number in the sequence is given to the statistician by activating a member function called next_number. For example, we can declare a statistician called s, and then give it the sequence of numbers 1.1, -2.4, 0.8 as shown here: statistician s; s.next_number(1.1); s.next_number(-2.4); s.next_number(0.8); After a sequence has been given to a statistician, there are various member funcitons to obtain infomration about the sequence. Include member functions that will provide the length of the sequence, the last number of the sequence, the sum of all the numbers in the sequence, the arithmetic mean of the numbers(i.e the sum of the numbers divided by the length of the sequence), the smallest number inthe sequence, and the largest number in the sequence. Notice that the length and sum functions can be called at any time, even…
Java program requirements:- a PesoCurrency class with an amount attribute.- Define an overloaded convertTo method that will convert amount attribute to dollars and euros.- Conversion: 1 dollar = 50 pesos while 10 dollars = 2 euros.- Implement the class to ask the user an amount in peso to convert and will display the dollar and euro equivalent of the inputted peso amount.
In Java, Write a line of code that performs each of the following tasks : (a) Call superclass Employee's toString method from subclass Pieceworker's toString method. (b)Specify that class Pieceworker inherits from class Employee. (c) Call superclass Employee's constructor from subclass Pieceworker's constructor - assume that the superclass constructor receives three strings representing the first name, last name and social security number.
Please with interface Write a program in Java for the university consisting of the following categories: A mere Person classification contains the following variables:String name The person's name. 1int id id number. 2Write a constructor that receives the variables and a function (ID int , name String(add) whereYou receive the person's name and ID number and assign them. Write the Students class that inherits from the Person class containing the variablesnext:String Specialization The student's specialization. 1double gpa student average. 2Write a constructor that accepts the variables. (Two and a half degrees). Write the Employee class that inherits from the Person class containing the variablesnext:String jop The job name. 1int salary 2Write a constructor that accepts the variables. Create an interface for the program as shown in the following image
First, you need to design, code in Java, test and document a base class, Student. The Student class will have the following information, and all of these should be defined as Private: A first name (given name) A last name (family name/surname) Student number (ID) – an integer number (of type long) The Student class will have at least the following constructors and methods: (i) two constructors - one without any parameters (the default constructor), and one with parameters to give initial values to all the instance variables of Student. (ii) only necessary set and get methods for a valid class design. (iii) a reportGrade method, which you have nothing to report here, you can just print to the screen a message “There is no grade here.”. This method will be overridden in the respective child classes. (iv) an equals method which compares two student objects and returns true if they have the same student number (ID), otherwise it returns false. You may add other…
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…
An employee has a name, phone number and salary. A coach is a person with a senitority status, one of: junior, lead, and senior. Define the possible status values as constants. A staff is a person with a job title and job descrption. Your programming task is to Implement as abstract class named Employee and two subclass name Coach and Staff in Java as defined above Provide constructors for classes to initalize private variable Override the toString() method in each of the classes in task 1 to display the class name and the person's name Write an application to create objects of type Coach and Staff and print the person's name and the class name of the objects
Write a java program to create a class Employee which contains member variables as name (String object)empid (Integer object)salary (Float object)age (Integer object)Define a default as well as a parameterized constructor to initialize member variables with default and specified values respectively. Define and overload a method search as defined below boolean search (Employee e[ ], String name) To search an employee with name in an array of employee objects, if found return true, else false.boolean search (Employee e[ ], Integer empid) To search an employee with the empid in an array of employee objects, if found return true, else false.Also define another method to get the name of employee having highest salary in a set of employees. String getHighestSalary(Employee e[ ]) To return the name of the employee with highest salary in an array of employee objects.Input: At least 3 employee details like name, empid, salary and age.Name of employee to searchId of employee to searchOutput:…
The goal of this assignment is to show a simple implementation of inheritance and polymorphism in Java GUI applications. 2. Define 2 classes Patient and Billing, whose objects are records for a clinic. Derive Patient from class Person. A Patient record has patient's name(defined in Person class) and an identification number(use string type). A Billing object will contain a Patient object and a Doctor object. Give your class appropriate getter and accessor methods and constructors and equals method. Write a driver program to test all your methods. Then write a test program to create at least two Patients and 2 Doctors, and at least 2 Billing records and then display the total income from the Billing records.