Java a. Fill in the blank to complete the definition of a class named Person (the class header) that has a public String field named name and a public integer field named age. _____________________________ public String name; public int age; } b. Fill in the blank to write the definition of a class named Stuff (the class header) that simply has a public String field named stuff. ___________________________ public String stuff; }

Java a. Fill in the blank to complete the definition of a class named Person (the class header) that has a public String field named name and a public integer field named age. ___ public String name; public int age; } b. Fill in the blank to write the definition of a class named Stuff (the class header) that simply has a public String field named stuff. _ public String stuff; }

EBK JAVA PROGRAMMING

9th Edition

ISBN:9781337671385

Author:FARRELL

Publisher:FARRELL

Chapter4: More Object Concepts

Section: Chapter Questions

Problem 2PE

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WRITE A JAVA CODE FOR THE FOLLOWING Create a class named Horse that contains the following data fields: name - of type String color - of type String birthYear - of type int Include get and set methods for these fields. Next, create a subclass named RaceHorse, which contains an additional field, races (of type int), that holds the number of races in which the horse has competed and additional methods to get and set the new field. THAT IS THE DEMOHORSES PROGRAM U NEED TO CREATE A CLASS NAMED HORSE AND RACE HORSE. public class DemoHorses { public static void main(String args[]) { Horse horse1 = new Horse(); RaceHorse horse2 = new RaceHorse(); horse1.setName("Old Paint"); horse1.setColor("brown"); horse1.setBirthYear(2009); horse2.setName("Champion"); horse2.setColor("black"); horse2.setBirthYear(2011); horse2.setRaces(4); System.out.println(horse1.getName() + " is " + horse1.getColor() + " and…
Java Question - Using the bottom code, create another class named "DigitalBook" as a subclass of the given "Book" class. Then, Make sure that the "DigitalBook" class contains two constructors: (1) one is the default constructor that takes no parameter, and (2) the other is a parameterized constructor that take 6 parameters. Be sure to use the “super” keyword in the constructors of the "DigitalBook" class. In the “main()” method of the “EX12_1” class, create four instances: “b1”, “b2”, d1”, and “d2”. Let “b1” and “b2” be the instances of the “Book” class, and let the “d1” and “d2” be the instance of the “DigitalBook” class. Be sure to use the specified constructor (as shown in attached picture) to initialize these instances. The Final Output is shown in the attached pictures. Please make sure that no errors show up in the Java Compiler when testing the code. Thank you. Add the following code to the "class Book" code (Below the ___ line). public class EX12_1{public static void…
Java Question - Using the bottom code, create another class named "DigitalBook" as a subclass of the given "Book" class. Then, Make sure that the "DigitalBook" class contains two constructors: (1) one is the default constructor that takes no parameter, and (2) the other is a parameterized constructor that take 6 parameters. Be sure to use the “super” keyword in the constructors of the "DigitalBook" class. In the “main()” method of the “EX12_1” class, create four instances: “b1”, “b2”, d1”, and “d2”. Let “b1” and “b2” be the instances of the “Book” class, and let the “d1” and “d2” be the instance of the “DigitalBook” class. Be sure to use the specified constructor (as shown in attached picture) to initialize these instances. The Final Output is shown in the attached pictures. Add the following code to the "class Book" code (Below the ___ line). public class EX12_1{public static void main(String[] args){/////add your code here}}…
Create a class Date that converts a string of the form of “mm/dd/yyyy” into an object with three fields – month, day, and year. The class constructor may do this job, but do not forget to check the string for correctness. Once you have this class ready, input the date as a string with the following converting into an object of type Date. The language is in Java.
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please use java to answer the following question Design and implement a class named Triangle that extends GeometricObject. The class contains: Three double data fields named side1, side2, and side3 with default values 1.0 to denote three sides of the triangle. A no-arg constructor that creates a default triangle. A constructor that creates a triangle with the specified side1, side2, and side3. The accessor methods for all three data fields. A method named getPerimeter() that returns the perimeter of this triangle. A method named toString() that returns a string description for the triangle. The toString() method is implemented as follows: return "Triangle: side1 = " + side1 + " side2 = " + side2 + " side3 = " + side3; Write a test program that prompts the user to enter three sides of the triangle, a color, and a boolean value to indicate whether the triangle is filled. The program should create a Triangle object with these sides and set the color and filled properties…
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help please JAVA Write a Person class that contains the following fields and methods:• First Name• Last Name• A unique ID Number (say, 1001, 1002, etc.). The ID should be assigned by thecomputer. Use a class variable to keep track of the last ID assigned so that you don’trepeat the same number twice.1- Necessary constructors.2-Methods to return last name, first name, full name, and ID Number3-Methods to print last name, first name, and ID Number4-The toString method that returns a neatly formatted string describing the keyattributes of the personWrite a PersonTester class to test your class
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