create an Abstract class AbstractCat with the sameproperties and methods as Cat.... Create class AbstractCat. How to secure data?To protect it from direct access and manipulation from outside of the classwe need to make our instance data fields private. To let clients still manipulate data under our control we can provide thempublic getters and setters.. create getters, setters, constructors and toString(). Test AbstractCat class examplesecou...Circle.java음... 1 public class TestCat {34520 public static void main(String[] args) {A WNHO CO89232222101112131415 }}HeadsoriEmallPass.java// Test methodscatl.eat ();cat2.play();// Create two Cat instances using different constructorsCat cat1 = new Cat ("Whiskers", 3, "White", "Domestic");Cat cat2 = new Cat ("Smokey", 2);Averagescor...// Get the number of catsint numberOfCats = Cat.getNumberOfCats ();System.out.println("Number of cats:" + numberOfCats);Cat.java3"Bar examplesecou...1 public class Cat {234567891011120131415161718192002122232425026272829030313233340353637 1}◄// PropertiesString name;int age;String color;String type;}// Static variable to keep track of the number of catsstatic int numberOfCats = 0;Circle.java}// Constructorspublic Cat (String name, int age, String color, String type) {this.name = name;this.age = age;this.color = color;this.type = type;numberOfCats++; // Increment the count of cats when a new one is createdpublic Cat (String name, int age) {}HeadsOrTail...// Methodspublic void eat () {}this (name, age, "Unknown", "Domestic");}public void play() {System.out.println (name + is playing.");System.out.println (name + " is eating.");EmailPass.java// Static method to get the number of cats.public static int getNumberOfCats () {return numberOfCats;AverageScor...*Cat.java X*BankAccoun...WritableSmart InsertTestBankAcc...9:33: 202D

The Java code asks to create a code abstract class for implementing the class CatThe problem has 3…

create an Abstract class AbstractCat with the same properties and methods as Cat... . Create class AbstractCat. How to secure data? To protect it from direct access and manipulation from outside of the class we need to make our instance data fields private. To let clients still manipulate data under our control we can provide them public getters and setters. . create getters, setters, constructors and toString() . Test AbstractCat class

create an Abstract class AbstractCat with the same properties and methods as Cat... . Create class AbstractCat. How to secure data? To protect it from direct access and manipulation from outside of the class we need to make our instance data fields private. To let clients still manipulate data under our control we can provide them public getters and setters. . create getters, setters, constructors and toString() . Test AbstractCat class

EBK JAVA PROGRAMMING

8th Edition

ISBN:9781305480537

Author:FARRELL

Publisher:FARRELL

Chapter4: More Object Concepts

Section: Chapter Questions

Problem 7RQ

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/* TestCarSensor.java - program to test the CarSensor class.*/public class TestCarSensor{public static void main (String[] args){CarSensor generic = new CarSensor();CarSensor tempCel = new CarSensor("temperature sensor", -50, +300, "C"); CarSensor speed = new CarSensor("speed sensor", 0, 200, "km/h"); CarSensor speed2 = new CarSensor("speed sensor 2", 0, 200, "m/h"); // 2. test changing desc and limitsSystem.out.println ();System.out.println ( generic ); // display generic sensor (zero)generic.setDesc ("special sensor"); // change descriptiongeneric.setLimits (-5,5,"units"); // change limitsSystem.out.println ( generic ); // display generic sensor again// 3. test displaying object (calling .toString() )System.out.println ();System.out.println ( tempCel );System.out.println ( speed );System.out.println ( speed2 );// 4. test setlimits() ruleSystem.out.println ();System.out.println ( generic ); generic.setLimits (10, -10, "blah"); System.out.println ( generic ); generic.setLimits (-10,…
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mcq
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Charge Account Validation Using Java programming Create a class with a method that accepts a charge account number as its argument. The method should determine whether the number is valid by comparing it to the following list of valid charge account numbers:5658845 4520125 7895122 8777541 8451277 13028508080152 4562555 5552012 5050552 7825877 12502551005231 6545231 3852085 7576651 7881200 4581002These numbers should be stored in an array. Use a sequential search to locate the number passed as an argument. If the number is in the array, the method should return true, indicating the number is valid. If the number is not in the array, the method should return false, indicating the number is invalid.Write a program that tests the class by asking the user to enter a charge account number. The program should display a message indicating whether the number is valid or invalid.
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//PLEASE CORRECT MY MISTAKES, THANK YOUpublic class Person { private String personID; private String firstName; private String lastName; private String birthDate; private String address; public Person(){ personID = ""; firstName = ""; lastName = ""; birthDate = ""; address = ""; } public Person(String id, String first, String last, String birth, String add){ setPerson(id,first,last,birth,add); } public void setPerson(String id, String first, String last, String birth, String add){ personID = id; firstName = first; lastName = last; birthDate = birth; address = add; } public String getFirstName(){ return firstName; } public String getLastName(){ return lastName; } public String getBirthdate(){ return birthDate; } public String getAddress(){ return address; } public void print(){ System.out.print("\nPerson ID = " + personID); System.out.print("\nFirst Name = " +firstName); System.out.print("\nLast Name = " +lastName); System.out.print("\nBirth Date = " +birthDate);…
Incorrect Question 6 public class Shape { Color fillColor; } public Shape() { fill Color = Color. RED; } } public Shape(Color fillColor) { this.fill Color = fillColor; } public class Circle extends Shape { int radius; public Circle() { radius = 1; } public Circle(int radius) { this.radius = radius; } public Circle(int radius, Color fillColor) { } super(fillColor); this.radius = radius; Circle c1= new Circle(); Circle c2= new Circle(5); Circle c3 = new Circle(10, Color.BLUE); Which of the following are correct? c2 has radius 5 c1 is red c2 is red c3 has radius 10 c3 has radius 1 c3 is red c1 is blue ✔c2 has radius 10 c3 is blue c1 has radius 5 c1 has radius 1 c2 has radius 1 c2 is blue