Please fill in all the code gaps if possible: (java) public class LinkedListNode { private Object date; private LinkedListNode next; // Constructor: public LinkedListNode (Object data) // You also need to define the getter and setter: public LinkedListNode getNext() public void setNext (LinkedListNode next) public Object getData() public void setData(Object data) }

Interface This lab is a small demonstration of how interfaces work. Type up the code and submit the results. CODE public class InterfaceExample { public static void main(String[] args) { DemoClass myObj = new DemoClass(); myObj.myMethod(); myObj.myOtherMethod(); } public interface InterfaceOne { public void myMethod(); // interface method } public interface Interface Two { public void myOtherMethod(); // interface method } public class DemoClass implements InterfaceOne, Interface Two { public void myMethod() { System.out.println("Some text.."); } public void myOtherMethod() { System.out.println("Some other text..."); }

Create a fee invoice application for students attending Valence College, a college in the State of Florida. There are two types of students: graduate and undergraduate. Out-of-state undergraduate students pay twice the tuition of Florida-resident undergraduate students (all students pay the same health and id fees). A graduate student is either a PhD or a MS student. PhD students don't take any courses, but each has an advisor and a research subject. Each Ms and Phd student must be a teaching assistant for one undergraduate course. MS students can only take graduate courses. A course with a Course Number (crn) less than 5000 is considered an undergraduate course, and courses with a 5000 crn or higher are graduate courses. CRN Course Credit Hours. 4587 MAT 236 4 4599 COP 220 3 8997 GOL 124 1 9696 COP 100 3 4580 MAT 136 1 2599 COP 260 3 1997 CAP 424 1 5696 KOL 110 2 7587 MAT 936 5 2599 COP 111 3 6997 GOL 109 1 2696 COP 101 3 5580 MAT 636 2 2099 COP 268 3 4997 CAP 427 1 3696 KOL 910 2...

Data structure & Algrothium java program Create the three following classes: 1. class containing two strings attributes first name and last name.2. class containing the name object and an ArrayList of string to store the list gifts. This class would extend the attached NicePersonInterface.java3. class containing one ArrayList of Names to store the naughty names. Another ArrayList of NicePerson to store the nice names and gifts. Add atleast 4 names in each list and display all information.

14. Which statements are true about the following code? (Choose all that apply) 1: interface HasVocalCords {2: public abstract void makeSound();3: }4: public interface CanBark extends HasVocalCords {5: public void bark();6: } A. The CanBark interface doesn’t compile.B. A class that implements HasVocalCords must override the makeSound() method.C. A class that implements CanBark inherits both the makeSound() and bark() methods.D. A class that implements CanBark only inherits the bark() method.E. An interface cannot extend another interface. Please explain this code abstract, extent and interface methods too in detail.

In C++ class bookType { public: void setBookTitle(string s); //sets the bookTitle to s void setBookISBN(string ISBN); //sets the private member bookISBN to the parameter void setBookPrice(double cost); //sets the private member bookPrice to cost void setQuantityInStock (int noOfCopies); //sets the private member quantityInStock to noOfCopies void printInfo() const; //prints the bookTitle, bookISBN, the bookPrice and the quantityInStock string getBookISBN() const; //returns the bookISBN double getBookPrice() const; //returns the bookPrice int showQuantityInStock() const; //returns the quantityInStock void updateQuantity(int addBooks); //adds addBooks to the quantityInStock, so that the quantity in stock now has it original value plus the parameter sent to this function private: string bookTitle; string bookISBN; double bookPrice; int quantityInStock; }; Write the full function definition for updateQuantity();

Code: import java.util.*; //Bicycle interface interface Bicycle { abstract void changeCadence(int newValue); //will change value of candence to new value abstract void changeGear (int newValue); //changes gear of car abstract void speedUp(int increment); //increments speed of car by adding new Value to existing speed abstract void applyBrakes(int decrement); } //ACMEBicycle class definition class ACMEBicycle implements Bicycle { int cadence = 0; Â Â int speed = 0; Â Â int gear = 1; //methods of interface public void changeCadence(int newValue) { this.cadence=newValue; } public void changeGear (int newValue) { this.gear=newValue; } public void speedUp(int increment) { this.speed+=increment; } public void applyBrakes(int decrement) { this.speed-=decrement; } //display method void display() { System.out.println("Cadence: "+this.cadence); System.out.println("Gear: "+this.gear); System.out.println("Speed: "+this.speed); } } //KEYOBicycle class definition class KEYOBicycle implements...

class IndexItem { public: virtual int count() = 0; virtual void display()= 0; };class Book : public IndexItem { private: string title; string author; public: Book(string title, string author): title(title), author(author){} virtual int count(){ return 1; } virtual void display(){ /* YOU DO NOT NEED TO IMPLEMENT THIS FUNCTION */ } };class Category: public IndexItem { private: /* fill in the private member variables for the Category class below */ ? int count; public: Category(string name, string code): name(name), code(code){} /* Implement the count function below. Consider the use of the function as depicted in main() */ ? /* Implement the add function which fills the category with contents below. Consider the use of the function as depicted in main() */ ? virtualvoiddisplay(){ /* YOU DO NOT NEED TO IMPLEMENT THIS FUNCTION */ } };

a) Create a HeapPriorityQueue interface with the following abstract methods: isEmpty, is Full, enqueue, dequeue, reheapifyUpward, reheapify Downward, reposition. b) Create the HeapPriorityQueue class. Have heapArray hold maxSize of 250 entries. Also, include the methods: default constructor, toString. c) Create HeapOverflowException and HeapUnderflowException classes d) Create a Heap Demo class that creates a HeapPriorityQueue object and insert the values 1-10 into the heap. Print out the heap and remove two values from the heap. Print the resulting heap. Try and show the resulting tree with the nodes on their appropriate levels along with their branches.