Consider, the code: public class MyClass { public MyClass() { // some code } // some more code } To instantiate MyClass, which of the following statements is correct? MyClass mc = new MyClassObject; MyClass mc = new MyClass(); MyClass mc = MyClass(); MyClass mc = new mc;
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A: Lets see the solution.
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A: Introduction
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- If ParentClass is a Java class and we want the derived classes to have access to all the members of ParentClass, then we used the __?___ access specifier. a) public b) private c) protected d) inheritClass Student needs to create different constructors, but only have the initialization of instances done in a single place. Analyse and the process used, then give an example for class Student (choose random instances). USING JAVA PLZ, "OBJECT ORIENTED PROGRAMMING".Write a generic class of Shape with the attribute of center and operation to calculate area. Inherit the classes of Circle, Triangle, and Square such that the operation to calculate area has dynamic late binding. Write these classes such that Shape is an abstract class whereas all others are concrete classes
- Our AbstractHashMap class maintains a load factor λ ≤ 0.5. Reimplement that class to allow the user to specify the maximum load, and adjust the concrete subclasses accordingly.In your code, you have a method that takes a superclass instance as a mandatory argument. An instance of a subclass, rather than a superclass object, will suffice. Can we do that, if so? Where is the value in that?For this problem you are to join the following classes into a hierarchy (use the UML diagrams from Module 2 to get started): Player - Super Class Archer - Subclass Barbarian - Subclass Cleric - Subclass Rogue - Subclass Warlock - Subclass
- solve this by arraylist in the last of the question it has been told Create abstract class Pet , which is the abstract superclass of all animals. Declare a integer attribute called legs, which records the number of legs for this animal. Define a constructor that initializes the legs attribute. Declare an abstract method eat. Declare a concrete method walk that prints out something about how the animals walks (include the number of legs). Create the Dog class. The Dog class extends the Pet class. This class must include a String attribute to store the name and food of the pet Define a default constructor that calls the superclass constructor to specify that all dogs have 4 legs and name. override the eat and walk method. Create the Cat class that extends Pet. This class must include a String attribute to store the name of the pet, and a string to save food . Define a constructor that takes one String parameter that specifies the cat's name and food. This constructor must also…I need help creating a UML chart for this given Java abstract airplane class code below: public abstract class Airplane { private int numPassengers, numSeats, numStaff, price; private String name_record, model, color, type; private float speed, fuelCapacity; public abstract String getModel(); public abstract String getColor(); public abstract String getType(); public abstract float getSpeed(); public boolean isSeatAvailable() { return this.numPassengers < this.numSeats ? true : false; } public int numSeatAvailable() { return this.numSeats - this.numPassengers; } public int calculatePrice(int noPassenger) { return this.price * noPassenger; } public float calculateFuelCharge(float fuelPrice) { return this.fuelCapacity * fuelPrice; } }Write a generic class Students.java which has a constructor that takes three parameters – id, name, and type. Type will represent if the student is ‘remote’ or ‘in-person’. A toString() method in this class will display these details for any student. A generic method score() will be part of this class and it will be implemented by inherited classes. Write accessors and mutators for all data points. Write two classes RemoteStudents.java and InPersonStudents.java that inherits from Student class. Show the use of constructor from parent class (mind you, RemoteStudents have one additional parameter – discussion). Implement the abstract method score() of the parent class to calculate the weighted score for both types of students. Write a driver class JavaProgramming.java which has the main method. Create one remote student object and one in-person student object. The output should show prompts to enter individual scores – midterm, finals, ...... etc. and the program will…
- What does the super keyword represents and where can it be used? Give an example of a superclass and subclass. Be sure to make all the instances variables of the super class private. Include at least one constructor in each class and ensure that the constructor of the subclass calls the constructor of the superclass. Also include a toString method in both classes that returns the values of the instance variables with appropriate labels. Ensure that the toString method of subclass calls the toString method of the superclass so that the string returned contains the values of all the inherited instance variables.Write a java code that: a) Creates an abstract method in a superclass, then overrides it in a subclass. (Only show the methods in both classes). b) Provides a method PrintInfo () that prints your group info and can be used only in classes of the same package. c) Provides a non-overridden area() that calculates area. (choose a shape)Create a parent class Person with one attribute age and one method greet() that prints out "Hello, world!". By default, the age is 20. Then create a subclass CollegeStudent that inherits from Person and has its own attributes School_Name and Major. Then create an object (a college student, his name is Harry, age is 21, School_Name is "Felician University", and Major is "Computer Science"), then let Harry say"Hello World!".