ackage edu.umsl; interface Jumpman { void jump(); default void swingHammer() { // Code to swing hammer } } public class Main implements Jumpman { public static void main(String[] args) { } } What would you, as the programmer, need to minimally do, if anything, to fix the above code? Group of answer choices Class 'Main' must either be declared abstract or implement abstract methods 'jump()' and 'swingHammer()' in 'Jumpman'. Nothing, this code works as is. Class 'Main' must either be declared abstract or i

ackage edu.umsl; interface Jumpman { void jump(); default void swingHammer() { // Code to swing hammer } } public class Main implements Jumpman { public static void main(String[] args) { } } What would you, as the programmer, need to minimally do, if anything, to fix the above code? Group of answer choices Class 'Main' must either be declared abstract or implement abstract methods 'jump()' and 'swingHammer()' in 'Jumpman'. Nothing, this code works as is. Class 'Main' must either be declared abstract or i

Microsoft Visual C#

7th Edition

ISBN:9781337102100

Author:Joyce, Farrell.

Publisher:Joyce, Farrell.

Chapter10: Introduction To Inheritance

Section: Chapter Questions

Problem 20RQ

See similar textbooks

Similar questions

Vehicle is an abstract class. Create the Airplane class as a subclass of Vehicle. Extend and override Airplane as necessary to meet the criteria below. The travel method should return the distance traveled by the Airplane object. CODE: abstract class Vehicle { public abstract double travel(double time);} //add class definitions below this line //add class definitions above this line public class Exercise2 { public static void main(String[] args) { //add code below this line //add code above this line }}
1. Define a Class: Circle Circle - radius: double + Circle() +Circle(double r) +setradius(double r): void +getradius() : double +calculateArea(): double +calculateCircumference: double 2. Use a Circle instance (object) in a main() method Program.
How to fix these erros LocalResource.java:153: error: LocalResource is not abstract and does not override abstract method getPay() in Person public class LocalResource extends Person { ^ LocalResource.java:160: error: incompatible types: String cannot be converted to int super(firstName, lastName, date); public class LocalResource extends Person { private static int idCounter = 0; private int id; private String sector; private String trn; public LocalResource(String firstName, String lastName, String trn, String date, String sector){ super(firstName, lastName, date); this.trn = trn; this.sector = sector; this.id = ++idCounter;} public String getSector() { return sector; } public void setSector(String sector) { this.sector = sector; } public int getId(){ return id; } public String getTRN(){ return Integer.toString(id +100000000); } public String getContact() { return "LocalResource#" +…
JAVA CLASS AND OBJECT Modify the java program/code given below. 1.) Modify the abstraction example code below by adding another class “TestCarabao” with the necessary methods “label, move, and eat”. abstract class Animal { // abstract methods abstract void move(); abstract void eat(); // concrete method void label() { System.out.println("Animal's data:"); } }
JAVA CLASS AND OBJECT JAVA JAVA JAVA Write a java program/code of the given problems below: abstract class Animal { // abstract methods abstract void move(); abstract void eat(); // concrete method void label() { System.out.println("Animal's data:"); } } 1.) Modify the abstraction example code above by adding another class “TestCarabao” with the necessary methods “label, move, and eat”. 2.) Write a program that creates a car object, and displays the year and name with one method “speed”. Example output: Year: 2021 Model: Toyota Speed: 200km/h 3.) Write the main class of the given class Animal below that set the number of legs to “4” and display (get) the number of legs. class Animal { private int numberOfLegs; public void setNumberOfLegs(int numberOfLegs) { this.numberOfLegs = numberOfLegs; } public int getNumberOfLegs() { return numberOfLegs; } }
Write a constructor for the IceCreamCup class. The constructor takes the name, and a List of Flavor s (name it fList) as parameters. It initializes the instance variables with the parameters. Use shallow copy for initializing the list of Flavor s. (Throw an IllegalArgumentException if the name is null, or the Flavor list is null or empty.) Note that successful instantiation should increase nCups by 1.
Java Programming Problem 2 – Message Encoder, Decoder Create an interface MessageEncoder that has a single abstract method encode(plainText), where plainText is the message to be encoded. The method will return the encoded message. Create a class SubstitutionCipher that implements the interface MessageEncoder, as described above. The constructor should have one parameter called shift. Define the method encode so that each letter is shifted by the value in shift. Defne the method encode so that each letter is shifted by the value in shift. For example, if shift is 3, a will be replaced by d, b will be replaced by e, c will be replaced by f, and so on. (Hint: You may wish to define a private method that shifts a single character.) Create a class ShuffleCipher that implements the interface MessageEncoder, as described above. The constructor should have one parameter called n. Define the method encode so that the message is shuffled n times. To perform one shuffle, split the message…
PROGRAMMING LANGUAGE: JAVA SUBJECT: ADVANCED OOP WITH JAVA QUESTION NO 1: Make an abstract class named A1 with 2 abstract methods, then implement those methods in child class.
public abstract class Staff implements Payroll { private String name; private String department; private double baseSalary; private LocalDate joinedDate; What to do/change 1. (5) Provide the following: (2.5) Provide a fully parameterized constructor. (2.5) Provide getters and setters for all attributes. Base Salary must be a non-negative value (make all the necessary changes) 2. (5) Add a toString method. The string it returns should first include the name of the class (Doctor and Nurse should be subclasses of Staff). It should look similar to to the following: Expected Output: Doctor Name: Dr. Ahmed Department: Family Medicine Base Salary: 10000.0 Joined Date:2019-03-04
public class MyGenClass { private T1 name; private T2 stulD; private T3 CGPA; public void setStuData( ){ I/ parameters name = n; stulD = d: CGPA = g; } public void printAsString() { System.out.println( } ); I/ print all information as string public static void main(String args||) { Il Create an object stu by parameters String, Integer, Double Il Call setStuData() with any values you like /l Call printAsString() } }
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;…
toString() and equals() Methods This lab will demonstrate how the toString() and equals() methods work when they are not overridden. Type up the code and submit the BOTH results. CODE public class ObjectToString( public static void main(String[] args) { ClassOne co new ClassOne(); ClassTwo ct = new ClassTwo(); } } public class Classone { System.out.println(co); System.out.println(ct); System.out.println(co.equals(ct)); public void printfle() { System.out.println("I am from ClassOne"); } public class ClassTwo ( public void printMe() { } System.out.println("I am from ClassTwo"); Run the program and notice the output.