Java programming help needed
Question 21
An attribute that is shared by all objects of the class is coded using
an instance variable
a static variable
an instance method
a static method
Question 22
When you implement a method that is defined in a superclass, you
the original method.
overload
override
copy
call
Question 23
What modifier should you use on a variable so that it can only be referenced inside its defining class.
public
private
protected
default
package
21. Answer: a static method
22. Answer: override
23. Answer: private
24. Answer: third option is correct: "The default constructor of Parent is invoked" followed by "The defualt constructor of Child is invoked"
Note: my friend if you have any qeutions or queries comment below. Thank you my friend.
Java - Object Oriented Programming
Declare a class named Customer that has two private fields? Write a set method to make sure that if age > 125 years or less than 0 then it is set to 0 (default value) What does it indicate when declaring a class's instance variables with private access modifier? What is the role of a constructor? The data part of by an object's instance variables is known as? Do all methods have to always return...
1. Employees and overriding a class method The Java program (check below) utilizes a superclass named EmployeePerson (check below) and two derived classes, EmployeeManager (check below) and EmployeeStaff (check below), each of which extends the EmployeePerson class. The main program creates objects of type EmployeeManager and EmployeeStaff and prints those objects. Run the program, which prints manager data only using the EmployeePerson class' printInfo method. Modify the EmployeeStaff class to override the EmployeePerson class' printInfo method and print all the...
What is wrong with the following Java Code. public class TestEdible { abstract class Animal { /** Return animal sound */ public abstract String sound(); } class Chicken extends Animal implements Edible { @Override public String howToEat() { return "Chicken: Fry it"; } @Override public String sound() { return "Chicken: cock-a-doodle-doo"; } } class Tiger extends Animal { @Override public String sound() { return "Tiger: RROOAARR"; } } abstract class Fruit implements Edible { // Data fields, constructors, and methods...
PRG/421 Week One Analyze Assignment – Analyzing a Java™Program Containing Abstract and Derived Classes 1. What is the output of the program as it is written? (Program begins on p. 2) 2. Why would a programmer choose to define a method in an abstract class (such as the Animal constructor method or the getName()method in the code example) vs. defining a method as abstract (such as the makeSound()method in the example)? /********************************************************************** * Program: PRG/421 Week 1 Analyze Assignment * Purpose: Analyze the coding for...
Question 1 1 pts Which of the following is not a valid class name in Java? O MyClass MyClass1 My_Class MyClass# Question 2 1 pts Which of the following statements is False about instance variables and methods? Instance variables are usually defined with private access modifier. Instance variables are defined inside instance methods. Instance methods are invoked on an object of the class that contains the methods. A class can have more than one instance variables and methods. Question 3...
I need help writing my main method**** Computer Science 111 Introduction to Algorithms and Programming: Java Programming Project #4 – Classes and Objects (20 Points) You will create 3 new classes for this project, two will be chosen from the list below and one will be an entirely new class you invent.Here is the list: Shirt Shoe Wine Book Song Bicycle VideoGame Plant Car FootBall Boat Computer WebSite Movie Beer Pants TVShow MotorCycle Design First Create three (3) UML diagrams...
Programming assignment for Java:
Do not add any other instance variables to any class, but you
can create local variables in a method to accomplish tasks. Do not
create any methods other than the ones listed below.
Step 1 Develop the following class: Class Name: College Degree Access Modifier: public Instance variables Name: major Access modifier: private Data type: String Name: numberOfCourses Access modifier: private Data type: int Name: courseNameArray Access modifier: private Data type: String Name: courseCreditArray Access modifier:...
(Java with Netbeans) Programming. Please show modified
programming code for already given Main class, and programming for
code for the new GameChanger class.
// the code for Main class for step number 6 has already
been given, please show modified progrraming for Main class and
GameCHanger class, thank you.
package .games;
import java.util.Random;
import java.util.Scanner;
public class Main {
public static void main(String args[]) {
System.out.println("Welcome to the Number Guessing Game");
System.out.println();
Scanner sc = new Scanner(System.in);
// Get upper...
Y. Daniel Liang’s 8 Class Design Guidelines were posted on the File Manager and handed out in class. Please choose 5 guidelines and discuss them in depth. For each guideline, use 1 page or more for your discussion. You can use the code provided in class to demonstrate your points. The code should not be more than one-third of your writing. 1. Cohesion • [✓] A class should describe a single entity, and all the class operations should logically fit...
I want to write a superclass with one private attribute and one method in JAVA The super class will later derive into 2 subclasses each with its own private attributes and each with a method that OVERRIDES the superclass method with each subclasses with one method ( that will do something) unique to that subclass. ALL classes must have constructors initializing its attributes and getter/setter methods. Then, in the main method, keep initializing objects of type superclasses based on user's...