Define an abstract class LivingBeing. Define abstract methods breath, sleep, eats. Define Subclasses Animal and Plants. Override the base methods and call them polymorphically.
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OOPs
In today's technology-driven world, computer programming skills are in high demand. The object-oriented programming (OOP) approach is very much useful while designing and maintaining software programs. Object-oriented programming (OOP) is a basic programming paradigm that almost every developer has used at some stage in their career.
Constructor
The easiest way to think of a constructor in object-oriented programming (OOP) languages is:
Subject: Java
Question#1:
Define an abstract class LivingBeing. Define abstract methods breath, sleep, eats. Define Subclasses Animal and Plants. Override the base methods and call them polymorphically.
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- Please answer the following Java-related questions. a) a car class has an has-a relationship with the vehicle class: True or false? b) In java, when a subclass redefines a superclass by using the same signature (same name and same parameters) the subclass is said to overload that superclass method : True or false c) the variable that cannot be modified (cannot change its value) after being initialized is called.....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.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…
- i need it urgently in java not in java c++ Create an Abstract class Student that contains a method take exam, implement the method in the child classes PhdStudent and GradStudent in which PhdStudent takes exam by giving his final defense presentation while the graduate student gives a written paper.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?All of the abstract methods of the parent class must be implemented by any subclass. Do you think it's right or wrong?
- Write a java program to create methods to compute n!, nCr and nPr. Use inheritance, constructors and this keyword to create object. (write a code without using inbuilt methods like sort, avg etc). Draw a flow chart for the codeJAVA Write the abstract super class Transaction, and two of its subclasses, Payment and Sale (you do not need to supply any comments other than your name). I. Write an abstract superclass encapsulating a Transaction: The Transaction super class has an instance variable representing the customers name, and 3 methods: an overloaded constructor, a toString() method that returns a message including the name of the customer, and an abstract method called calculateAmount()which will be implemented in your subclasses. II. Write a non-abstract subclass that inherits from the Transaction class encapsulating a Payment: The Payment class has instance variable representing the payment amount received and 3 methods. It has an overloaded constructor, a toString() method that returns a message including customers name, the name of the class Payment, and the payment amount, an non-abstract class called calculateAmount() which returns the payment amount. III. Write a…Write an abstract class, it can be anything well defined from the very basics.
- 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). 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…The parent class is A, and its subclasses are B and C. Now, B and C share several characteristics and methods, but their implementations of some of their methods are drastically different. Using logic, define what A will be - a concrete class, an abstract class, or an interface.