Choose the correct syntax for generic Bucket class: public class Bucket < T > { ... } public class Bucket { ... } public < T > class Bucket { ... } public class Bucket { ... }
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- Java Code: Create a Parser class. Much like the Lexer, it has a constructor that accepts a LinkedList of Token and creates a TokenManager that is a private member. The next thing that we will build is a helper method – boolean AcceptSeperators(). One thing that is always tricky in parsing languages is that people can put empty lines anywhere they want in their code. Since the parser expects specific tokens in specific places, it happens frequently that we want to say, “there HAS to be a “;” or a new line, but there can be more than one”. That’s what this function does – it accepts any number of separators (newline or semi-colon) and returns true if it finds at least one. Create a Parse method that returns a ProgramNode. While there are more tokens in the TokenManager, it should loop calling two other methods – ParseFunction() and ParseAction(). If neither one is true, it should throw an exception. bool ParseFunction(ProgramNode) bool ParseAction(ProgramNode) -Creates ProgramNode,…we have 2 classes: public class Customer {private String id;private String name;private String town;// getter and setter, tostring and other methods are omitted}public class Order {private Customer customer;private Integer year;private Integer amount;// getter and setter, tostring and other methods are omitted} -Create a Map collection that has Customer as keys and list of orders as values and populate it by thedata in the input files.Also,find all the Orders that occurred in a given year and sort them by order amount (from low to high),andfind all Customers from a given town and sort by name. the file "Customers.txt": 11122:jon:uk15621:Rony:uk16755:Roy:uk the file "Orders.txt": 13452:2014:23023125:2015:55032212:2021:1230 in java Using streams and lambda.Q2:[f we e c)if we have the following two classes defined class Matrix { int m- 0; public Matrix() { m - 5; } public void jump() { m++; System.out.println("jump"+m) ; public void punch () { m--; System.out.println("punch"+ m); public class Agent extends Matrix { int a - -2; public Agent () { a - 0; } public void gesture() { a++; System.out.println("glare"+ a); public void punch() { gesture (); a--; System.out.println("pow!"+ a); Then what is the output, if we execute the following main method public static void main(String[] args) { Matrix one = new Agent(); one.punch(); Agent two = new Agent (); two.punch();
- java Create a Storage<T> abstract class. The class has abstract methods void print() which prints the object of the storage. The class has a non-abstract method add(T element) which adds the not-null element in the storage if the element is not already present. Create a class MyStorage which is a subclass of Storage.1. Consider the header of this class: public class AList implements iList Which type of class is AList? (A. Interface class, B. Derived class, C. Base class, D. Generic Class)What does the below code do? public class Node<T> { private T data; private Node<T> node; public Node(T data) { this.data = data; } public Node<T> getNode() { return node; } public void setNode(Node<T> node) { this.node = node; } public T getData() { return data; } public void setData(T data) { this.data = data; } @Override public String toString() { return data+" "; } @Override public int hCode() { final int pm = 31; int res = 1; res = pm * res + ((data == null) ? 0 : data.hCode()); res = pm * res + ((node == null) ? 0 : node.hCode()); return res; } @Override public boolean equals(Object obj) { if(this == obj) return true; if(obj == null) return false; if(!(obj instanceof Node)) return false; Node other = (Node) obj; if(data == null) { if(other.data != null) return false; } else if(!data .equals(other.data)) return false; if(node == null) { if(other.node != null) return…
- We have a parking office class for a parking management system. It has dependencies and relations with customer, car, parking lot and parking charge classes. Explain the code by stating implementation decisions, reasons behind those implementation decisions, what you assume was hard or easy to implement, and what helped. public class ParkingOffice {String name;String address;String phone;List<Customer> customers;List<Car> cars;List<ParkingLot> lots;List<ParkingCharge> charges; public ParkingOffice(){customers = new ArrayList<>();cars = new ArrayList<>();lots = new ArrayList<>();charges = new ArrayList<>();}public Customer register() {Customer cust = new Customer(name,address,phone);customers.add(cust);return cust;}public Car register(Customer c,String licence, CarType t) {Car car = new Car(c,licence,t);cars.add(car);return car;}public Customer getCustomer(String name) {for(Customer cust :…Java Code: Build the two variable classes that we need: InterpreterDataType and a subclass InterpreterArrayDataType. I will abbreviate these as IDT and IADT. IDT holds a string and has two constructors - one with and one without an initial value supplied. IADT holds a HashMap<String,IDT>. Its constructor should create that hash map. We will use these as our variable storage classes as the interpreter runs. Let's start the interpreter itself. Create a new class (Interpreter). Inside of it, we will have an inner class - LineManager. We will also need a HashMap<String,IDT> that will hold our global variables. We will also have a member HashMap<String, FunctionDefinitionNode> - this will be our source when someone calls a function. The LineManager should take a List<String> as a parameter to the constructor and store it in a member. This will be our read-in input file. It will need a method : SplitAndAssign. This method will get the next line and split it by looking…Implement a nested class composition relationship between any two class types from the following list: Advisor Вook Classroom Department Friend Grade School Student Teacher Tutor Write all necessary code for both classes to demonstrate a nested composition relationship including the following: a. one encapsulated data member for each class b. inline default constructor using constructor delegation for each class c. inline one-parameter constructor for each class d. inline accessors for all data members e. inline mutators for all data members
- Draw the UML diagram for the classes and its relationships for this code: import java.util.ArrayList;public class Main { public static void main(String[] args) {Market superMarket = new Market(10);}class Market { private ArrayList<String> fruits = new ArrayList<>(); private int fruitsNumber; public Market(int fruitsNumber) { if (fruitsNumber > 0) { this.fruitsNumber = fruitsNumber; }else { throw new IllegalArgumentException("This argument is not valid"); } } private synchronized boolean isFull() { return fruits.size() == this.fruitsNumber; } private synchronized boolean isEmpty() { return fruits.isEmpty(); } public synchronized void farmer(String fruit) { if (isFull()) { System.out.println("We can not accept more fruites at the moment !!"); try { wait(); }catch (InterruptedException e) { System.out.println("Interruption"); } } fruits.add(fruit); System.out.printf("fruit : %s is added !!!%n", fruit); }…No selection 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 Student Answers.cs 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 } class What Is_A_Generic { // Put your comment here } // Your job is to finish this class, by implementing the three missing methods: class BasicGeneric { // T storedItem; // You'll need to add a // SetItem method // You'll need to add a // GetItem method // You'll need to add a // Print method // And that's it! class ProgramLogic { private int theData; public ProgramLogic() { theData = 0; } public void PrintData() { } I // Method is defined to be virtual in the base class public override string ToString() { return "ProgramLogic object containing: " + theData.ToString(); } Console.WriteLine(theData);Draw a class diagram for the parking office class below. Diagram shoukd not be hand drawn. N.B Parking office class has relations and dependencies with car, customer, parkinglot and parking charge classes. public class ParkingOffice {String name;String address;String phone;List<Customer> customers;List<Car> cars;List<ParkingLot> lots;List<ParkingCharge> charges; public ParkingOffice(){customers = new ArrayList<>();cars = new ArrayList<>();lots = new ArrayList<>();charges = new ArrayList<>();}public Customer register() {Customer cust = new Customer(name,address,phone);customers.add(cust);return cust;}public Car register(Customer c,String licence, CarType t) {Car car = new Car(c,licence,t);cars.add(car);return car;}public Customer getCustomer(String name) {for(Customer cust : customers)if(cust.getName().equals(name))return cust;return null;}public double addCharge(ParkingCharge p) {charges.add(p);return p.amount;}public String[]…