Use the class definition below to answer the following questions:- public class CBox { String BColor = “blue”; String BName; double BWeight; public void setBColor(String c) { BColor = c; } public String getBName() { return BName; } } a) Name any 2 field attribute for this class and their type? b) What is the name of the method that is a mutator? c) Why is the return type for the getBName method String?

Use the class definition below to answer the following questions:- public class CBox { String BColor = “blue”; String BName; double BWeight; public void setBColor(String c) { BColor = c; } public String getBName() { return BName; } } a) Name any 2 field attribute for this class and their type? b) What is the name of the method that is a mutator? c) Why is the return type for the getBName method String?

EBK JAVA PROGRAMMING

9th Edition

ISBN:9781337671385

Author:FARRELL

Publisher:FARRELL

Chapter1: Creating Java Programs

Section: Chapter Questions

Problem 9RQ

See similar textbooks

Similar questions

hello! can you help debug my program? it's in Java! here are the errors I'm getting: line 189: total_weight cannot be resolved or is not a fieldline 93: the type Snake must implement the inherited abstract method Animal.makeNoise()line 139: the method actual_num_animals(int) is undefined for the type Zooline 152: the left-hand side of an assignment must be a variableline 169: syntax error, insert } to complete Blockline 152: syntax error, insert “. class” to complete expressionline 139: syntax error on token “<“, ( expectedline 139: syntax error on token “{“ invalid AssignmentOperatorline 152: i cannot be resolved to a variableline 152: i cannot be resolved to a variableline 154: i cannot be resolved to a variable here is my code: package zoo; public abstract class Animal { private String name; private double weight; private int age; public Animal() { name=""; weight=0; age=0; } public Animal(String name, double weight, int age) { this.name = name; this.weight = weight;…
For the following four classes, choose the correct relationship between each pair. public class Room ( private String m type; private double m area; // "Bedroom", "Dining room", etc. // in square feet public Room (String type, double area) m type type; m area = area; public class Person { private String m name; private int m age; public Person (String name, int age) m name = name; m age = age; public class LivingSSpace ( private String m address; private Room[] m rooms; private Person[] m occupants; private int m countRooms; private int m countoccupants; public LivingSpace (String address, int numRooms, int numoccupants) m address = address; new int [numRooms]; = new int [numOceupants]; m rooms %3D D occupants m countRooms = m countOccupants = 0; public void addRoom (String type, double area)
A GradeBook Example : In this example ,GradeBook class has one attributeand some methods to access this attribute data:public class GradeBook { private String cname; public void setName(String name){ cname=name;}public String getName(){return cname;} public void showMessage(){System.out.printf("Welcome to the Grade Book of %s \n", getName());}} //End of ClassTest Class Example that uses GradeBook class:public class GradeBookTest {public static void main(String[] args) { GradeBook b1=new GradeBook();GradeBook b2=new GradeBook(); System.out.printf("Course Name %s \n",b1.getName());System.out.printf("Course Name %s \n",b2.getName()); b1.setName("Object Oriented Programming");b2.setName("Data Structure using Java"); System.out.printf("Course Name %s \n",b1.getName());System.out.printf("Course Name %s \n",b2.getName()); b1.showMessage();b2.showMessage();}}//End class Exercise:You need to include another two attribute with name“marks” and “totalstudents” in GradeBook Class, Usefunctions to…
is a construct that defines objects of the same type. A class An object A method A data field
public class Secret private int x; private static int y; public static int count; public int z; public Secret () } X ?t = 2 { public Secret (int a) } { public Secret (int a, int b) } { public String toString() return ("x = " count = " + count); { public static void incrementY () { { 54. How many constructors are present in the class definition above? C. 2 d. 3 b. 1 55. What does the default constructor do in the class definition above? a. Sets the value of x to 0 c. Sets the value of x to 0 and the value of z to 1 d. There is no default constructor. b. Sets the value of z to 1 56. Based on the class definition above, which of the following statements is illegal? Secret.incrementY (); b. Secret.count++3B a. c. Secret. 2++; d. None of these 13
Incorrect Question 1 Consider: class Bike { } private String make; public public Bike() } // ... public Bike(String newMake) { // ... } public public Bike (Bike bike) } // ... Bike(Bike bike) is the no-arg constructor Bike() is the no-arg constructor Bike(String newMake) is the no-arg constructor This is not valid class declaration
Given the following class definition: class employee{public: employee(); employee(string, int, double); employee(int, double); employee(string); void setData(string, int, double); void print() const; void updatePay(double); int getNumOfServiceYears() const; double getPay() const;private: string name; int numOfServiceYears; double pay;}; Create a class parttime derived from the above class that includes private members payRate and hoursWorked of type double along with a constructor and the definition of a print function that prints out all information from the base and derived class. Provide a test program that would demonstrate the working parttime class. Note: You can assume all code is stored in a single file.
Class Phone{ bool wired() string ageOfInnovation() } Class CellPhone extends Phone{ bool wired(){ return false; } string ageOfInnovation(){ return "1970's" } int thickness(){ return 0; } } Class SmartPhone extends CellPhone{ bool wired(){ return false; } string ageOfInnovation(){ return "1990's" } string popularlyCalled(){ return "mobile" } string mainFeature(){ return "Internet Capability"; } }
public class Stadium extends baseStadium{ public int typeTicket; int floors; int seating; String type; public float ticketPrice; public String leagueName=""; public void SetTecketName(String val) { leagueName=val; } public void setType() { if (typeTicket == 1) { type = "VIP"; } else { type = "Regular"; } } public String getType() { return type; } public void setPrice() { if (typeTicket == 1) { ticketPrice = 250; } else { ticketPrice = 100; } } public void setFloors(int floors) { this.floors = floors; } public int getFloors() { return floors; } public void setSeating(int seating) { this.seating = seating; } public int getSeating() { return seating; } public void printDetails() { System.out.println("Ticket Details:"); System.out.println("Ticket Type:…
Question 6 Consider: class Bike { } private String color; public Bike() { } public Bike(String newColor) { color = newColor; } public Bike (Bike bike) { color = } bike.color; public String getColor() { } } return color; public void setColor(String newColor) { color = newColor; Bike bike1= new Bike(); = Bike bike2 new Bike("blue"); Bike bike3 = new Bike(bike2); bike2.setColor("green"); Bike bike4 = new Bike(bike2); Which of the following are correct? bike4.getColor() returns null bike4.getColor() return "blue" bike3.getColor() return "green" bike2.getColor() returns "blue" bike4.getColor() return "green" bike1.getColor() returns bike3.getColor() return null bike3.getColor() returns "blue" bike2.getColor() returns "green" bike1.getColor() returns null
Point out errors in the following codes and correct them publicclass CheckingAccount { // Create attributes account Num, Balance privateint accountNum; // Account Number privatedouble balance; // Account balance // Constructor public void CheckingAccount(int aNum, double balance) { // Call setters to initialize attribute values setAccountNumber (aNum); setBalance; } // Setters public void setAccountNumber(int aNum) { if (accountNum >= 100) { accountNum = aNum; } else {System.out.println("This account number is invalid (Account number must be at least 3 digits)!"); this.accountNum = 100; // assign a default value } } public void setBalance(double aBalance) { // make sure the value is positive if (aBalance > 0) { aBalance = balance; } else { System.out.println("This balance value is invalid (input must be positive)!"); aBalance = 0; // assign a default value } } // Getters publicvoid getAccountNumber() { return accountNum; } public void getBalance() { return balance; }…
Incorrect Question 4 Consider public class Species { } // fields private String name; private int population; private double growthRate; // constructor public Species () { } name = "No Name Yet"; population = 0; growthRate = 33.3; Which of the following is the best setter method for the population instance variable? public boolean setPopulation(int newPopulation) { } if (newPopulation>= 0) { } population = newPopulation; return false; } return true; public public void setPopulation (int newPopulation) if (newPopulation>= 0) { } population newPopulation; public void setPopulation (int newPopulation) { population } = newPopulation;