PLZ help with the following IN JAVA When defining an inner class to be a helper class for an outer class, the inner classes access should be marked as: Pu
Q: 1. Write a program in Java using Bluej that performs the following tasks: Creates a class called…
A: Algorithm: Start Create a class Student with attributes name,Id,no and cname(representing college…
Q: Design a console program that will print details of prescribed textbooks of students. Make use of an…
A: Book.java public abstract class Book { public String author,title,category,price; //constructor…
Q: Describe the difference between making a class a member of another class (object aggregation), and…
A: In object composition, one object is nested inside an object,creating a has-a relationship. When a…
Q: Create a constructor of MyClass, and call it: class MyClass { public: cout <« "Hello World!"; }; int…
A: Constructor name of a class is same as class name.
Q: Take a look at the class declaration below: package p1; class Test8{ int i; package p2; import…
A: Only variable l is accessible in Test9 directly by creating a reference of Test8. Reason: variable l…
Q: Java programming lanaguage A. Design and implement the class Circle that contains the double…
A: Here I have created a class named Circle. Here I have created a variable named radius. Next, I have…
Q: Movable «interface>> +moveUp(): void +moveDown (): void +moveleft():void +moveRight():void abstract…
A: Movable.java public interface Movable { void moveUP(); void moveDown(); void moveLeft();…
Q: Create a classstudent which includes parameters roll_no, name and address and consider as super…
A: //code import java.util.Scanner; class Student3 { void Student(int roll, String name,int…
Q: Use myObj to access and print the value of the x attribute of MyClass. public class MyClass { int x…
A: Introduction: PROGRAMMING LANGUAGE: Java Use myObj to access and print the value of the x attribute…
Q: JAVA HELP! Can you add questions and covert chapter numbers into points and make an application…
A: Given: Add the eight classes from the UML class diagram in a package called “testsimulator” as shown…
Q: Write a java code that: a) Creates an abstract method in a superclass, then overrides it in a…
A: a) abstract class Animal { abstract void makeSound(); public void eat() {…
Q: Software Requirements: Latest version of NetBeans IDE Java Development Kit (JDK) 8 Procedure: 1.…
A: ANSWER:-
Q: rentiate between early binding and late binding. (Write in maximum 5 lines) [5 Marks] b. Write a…
A: Explanation: (A) Binding is the process of creating a link between a method call and method…
Q: final is a modifier that is applied to a variable in order to turn the variable into a constant.…
A: Modifier defines, how the variables, methods and classes can be accessed. In java we generally have…
Q: Which one is true? A) An inner class can be declared public or private subject to the same…
A: All the statements are true. So option A,B,C,D are correct
Q: This keyword is to declare a user-defined package. Choose. Choose.. public import This is the most…
A: I have given an answer in step 2.
Q: What is polymorphism in Java
A: Polymorphism: Polymorphism is derived from the two words: poly means many and morphs means forms.…
Q: True or false?(a) You can override a nonprivate method defined in a superclass.(b) You can override…
A: a) All non-private methods are inherited by the sub-class from its super-class. A non-private…
Q: Java Questions - (Has 2 Parts). Based on each code, which answer out of the choices "A,B,C,D,E" is…
A: Inheritance is a mechanism in which one class acquires the property of other class. It is a…
Q: Design a console program that will print details of prescribed textbooks of students. Make use of an…
A: public interface iPrintable { String DisplayDetails(); }
Q: Implements Cloneable interface. Contain two member variables RollNo & Name. Initialize member…
A: 1- In this assignment require, implement a cloneable interface, two string types variable(roll no,…
Q: efine a class Human with properties "first name" and "last name". Define the class Student…
A: in this problem, we have to define different classes According to the conditions of the given…
Q: Please write the following program in JAVA! Thanks, refer to photos.
A: Program: //Filename: “XXXX_TestWorker.java” import java.util.*; public class XXXX_TestWorker {…
Q: what does the following mean? class A: public B Select one: a. class B will inherit all the…
A: Inheritance is a property by which a object of one type acquires properties of its parent class and…
Q: 1. LockADT - Show the interface and all abstract methods LockDataStructureClass - Show the following…
A: PROGRAM CODE: // import the required librariesimport java.util.*;import java.lang.*;import…
Q: 5- When de we need to use private keyword in C++ class? 6- A derived class can be a base class for…
A: 5) When you need private keyword in c++ class 6) Derived class can be a base class for other class…
Q: Based on the following case study: Write a JAVA code Staff in the Office
A: public class Office { private String staffPosition; private int officeNumber; public…
Q: Polymorphism in Java is Select one: a.when a program uses several different types of objects, each…
A: I have provided solution in step2.
Q: Complete the thick.h, thick.cpp, thin.h, and thin.cpp classes in the attached pizza solution. Modify…
A: C++ is a compiled language that follows the concept of oops to make projects. It is used to build…
Q: Assignment: Write the class XXXX_Worker with constructors, accessors, mutuators, and a toString…
A: create XXXX_Worker class with instance data members as Worker Name and Number.declare constructors,…
Q: Use JAVA - This task helps you understand how constructors work in inheritance Create a…
A: The answer is
Q: Java, polymorphism refers to the fact that you can have __________ a. multiple class with the same…
A: In Java, polymorphism refers to the fact that you can have __________ a. multiple class with the…
Q: Write a Program in java to define a Student class, with member variables String name; int cms…
A: public class Student{ //creating specified data members private String name; private String…
Q: Text Class The Text class inherits from Drawable and it will be used to display the player's score.…
A: It is defined as an interpreted, object-oriented, high-level programming language with dynamic…
Q: This task helps you understand how constructors work in inheritance Create a superclass, called…
A: The answer is
Q: Q3. Write a Java program to implement the concept of run time polymorphism through method overriding…
A: Code Music.java// class representing musicpublic class Music { // member to hold the title…
Q: class Test4 { int i; Test4 (int m){ i = m; class Test5 extends Test4{ private int j; Il add a…
A: The program illustrates the inheritance, polymorphism (overloading), and super keyword. Test4 is a…
Q: A. Write the classes as shown in the following class diagram. Movable is an interface and…
A: Movable.java public interface Movable { void moveUP(); void moveDown(); void…
Q: Write a Java program that stores information about a company. You should define two classes:…
A: Write a Java program that stores information about a company. You should define two classes:…
Q: A. Write the classes as shown in the following class diagram. Movable is an interface and…
A: Movable.java public interface Movable { void moveUP(); void moveDown(); void moveLeft();…
Q: write a java programme: Vehicle class: First create an abstract Vehicle class that contains code…
A: To write a java program for given scenario which hold methods like class and interfaces. An…
Q: Java- Suppose that Vehicle is a class and Car is a new class that extends Vehicle. Write a…
A: Hello student
Q: IN JAVA PLEASE Child Class: Vegetable Write a child class called Vegetable. A vegetable is described…
A: We need to write a Java class for the given scenario.
Q: write a driver for the code and attach both so that the driver can be run to test the Clas
A: 1- As per the assignment screenshot, there is a parameterized constructor with three integer-type…
Q: Implement “SoftwareEngineer” and “CheifEngineer” class derived from “Employee” class with necessary…
A: Here I have created both SoftwareEngineer and CheifEngineer classes. In both the classes, the same…
Q: ed and running time through parameters and assign these to the class variables. Create an abstract…
A: Q. Design a console program that will print details of DVDs available to buy. Make use of an…
Q: Implements Cloneable interface. Contain two member variables RollNo & Name. Initialize member…
A: Java code: import java.util.*; // class Student implements Cloneable interface.class Student…
Q: When a method in a subclass overrides a method in superclass, it is still possible to call the…
A: All the code is correct. Just add a super keyword before the method. Super keyword used to…
Q: vWhen you want to listen for an event, you can implement an appropriate for your class O Handler O…
A: explanation: when you want to listen for an event, you can implement an appropriate listener for…
PLZ help with the following IN JAVA
When defining an inner class to be a helper class for an outer class, the inner classes access should be marked as:
- Public
- Private
- Protected
- Package access
Step by step
Solved in 2 steps
- Hand-write a complete Java class that can be usedto create a Car object as described below.a. A Vehicle has-a:i. Registration numberii. Owner nameiii. Priceiv. Year manufacturedb. Add all instance variablesc. The class must have getters and setters for all instance variablesd. The class must have two constructors, a no-args and a constructor that receivesinput parameters for each instance variable.This way, any class that implements the Visible interface can define its own behavior for making an object visible or invisible based on its specific requirements.Create a Priority Java interface with two methods: setPriority and getPriority. The interface should define a method for assigning numerical priority to a group of objects. Create a class named Task that represents a task (such as one on a to-do list) that implements the Priority interface. Make a driver class to test certain Task objects.Java Exercise 3. Movable PointA. Write the classes as shown in the following class diagram. Movable is an interface and MovablePoint implements it. ‘~’ means package access but you can just make it public. (pic1.png) B. Now add the class MovableCircle which also implements the interface Movable and is composed of a MovablePoint. Add a tester that allows the user to enter the radius and center of a MovableCircle. After that ask the user if they want (yes/no) to move the circle and how they want to move it (up, down, left, right). Everytime the circle is moved, you should output its changed position. If the user says “no” the program ends. (pic2.png)
- Assume that you would like to have a class which is named as MyOnlyOneInstanceClass and this class cannot be instantiated more than once! Therefore, you must ensure that there will be one-and-only-one instance/copy of the class and any other instances can NOT be created! java language.Question 14 papa.Write a Java class “ShoppingCart” and a Java tester class “ShoppingCartTestDrive” to implement the OOP class design: “ShoppingCart”. - Apply “Encapsulation” concept in your classes- Implement three methods addToCart(), removeFromCart(),checkOut() and print demo results to the screen Full explain this question and text typing work only We should answer our question within 2 hours takes more time then we will reduce Rating Dont ignore this lineImplement all the classes using Java programming language from the given UML Class diagram. Note: This problem requires you to submit just two classes: Circle.java, Circle.java, Rectangle.java, Square.java. Do NOT include "public static void main()" method inside all of these classes. Write a superclass called Shape (as shown in the class diagram), which contains: Two instance variables color (String) and filled (boolean). Two constructors: a no-arg (no-argument) constructor that initializes the color to "green" and filled to true, and a constructor that initializes the color and filled to the given values. Getter and setter for all the instance variables. By convention, the getter for a boolean variable xxx is called isXXX() (instead of getXxx() for all the other types). A toString() method that returns "A Shape with color of xxx and filled/Not filled". Write a test program to test all the methods defined in Shape. Write two subclasses of Shape called Circle and Rectangle, as…
- Hand-write two Java classes, Car and Truck. They are bothsubclasses of Vehicle.a. A car has an additional instance variable, number of doors.b. A truck has an additional instance variable, number of axlesc. Write a constructor that requires input for the instance variables of each class(including registration number and owner name).d. Write getters and setters for all instance variables for both classes.in Java Part 1 : Start by creating a new class called MyPoint that can be initialized with either of these constructors: MyPoint p1 = new MyPoint(); MyPoint p2 = new MyPoint(2.0, 4.0); The two arguments given to the constructor are x (2.0) and y (4.0) co-ordinates. Don’t forget to include getters and setters as these should be private instance variables! Part 2 : Create a toString() instance method that prints out the co-ordinates of the point. Add two instance methods that return the Euclidean distance to another point, or to another (x, y) coordinate. Example: double distance = p2.distance(p1); The Euclidean distance between two points is: d=√x^2 + y^2 You will need to make use of methods from the Math package: https://docs.oracle.com/en/java/javase/17/docs/api/java.base/java/lang/Math.html Test your constructors and the new methods. Part 3 : Create a class method, contains(MyPoint[] points, MyPoint p), that checks if the point p is in the array points and returns a boolean.…Create a complete Java class that can be used to create a Computer object as described below:A Computer has a:- Manufacturer- Disk Size- Manufacturing Date- Number of coresa) Add all instance variables (data encapsulation is expected).b) The class must have getters and setters for all instance variables.c) The class must have two constructors: a no-arg constructor and a constructor thatreceives input parameters for each instance variable.d) Implement a toString() method for your class.
- This way, any class that implements the Visible interface can define its own behavior for making an object visible or invisible based on its specific requirements.Create the Priority Java interface, which has the methods setPriority and getPriority. A method for determining numerical priority among a group of objects should be defined by the interface. Create and implement a class named Task that represents a task that implements the Priority interface, such as one that is on a to-do list. To test some Task objects, construct a driver class.Do the following program in Java Eclipse. Java Class that can be used to create a Fruit object as described below: A fruit has - a: - Date of Harvest -Color -Weight -Number of seeds a. Add all instance variables. b. The class must have getters and setters for all instance variables. c. The class must have two constructors, a no-args and a constructor that receives input for each instance variables. d. The parent class is abstract. e. its 1 abstract method and has toString() method f. its 2 children (concrete) also have toString() methods.Java Question - Based on code, which answer out of the choices "A, B, C, D, E" is correct. Question has one correct answer. Thank you. Part 2 - 10. Given the following code, which statement is true? class Water() { ... }class Juice() extends Water { ... }class Apple() { ... }class ApplePie() { Apple a1 = new Apple(); }class AppleJuice() { Apple a1 = new Apple(); Water w1 = newWater(); } A. Juice is a superclass and Water is a subclass.B. ApplePie is a superclass of Apple.C. ApplePie is a composite class that contains an instance of Apple class.D. AppleJuice is a superclass that contains an instance of Apple class and an instance of Water.E. Water is a composite class that contains an instance of Juice.5