Given the following code in Java and attached images( containing related code): //Controller (ONLY EDIT THE Controller.java file) import java.util.LinkedList; import java.util.Scanner; public class Controller {         public Controller() {         LinkedList googList = new LinkedList();         LinkedList amazList = new LinkedList();         Scanner input = new Scanner(System.in);                 do {             System.out.print("Enter 1 for Google stock or 2 for Amazon, 3 to quit: ");             int stockSelect = input.nextInt();             if(stockSelect == 3)                 break;             System.out.print("Input 1 to buy, 2 to sell: ");             int controlNum = input.nextInt();             System.out.print("How many stocks: ");             int quantity = input.nextInt();                         if(controlNum == 1) {                 System.out.print("At what price: ");                 double price = input.nextDouble();                 if(stockSelect == 1) {                     Controller.buyStock(googList, "Google", quantity, price);                 }                 else                     Controller.buyStock(amazList, "Amazon", quantity, price);             }             else {                 System.out.print("Press 1 for LIFO accounting, 2 for FIFO accounting: ");                 controlNum = input.nextInt();                 if(controlNum == 1) {                     if(stockSelect == 1)                         Controller.sellLIFO(googList, quantity);                     else                         Controller.sellLIFO(amazList, quantity);                 }                 else {                     if(stockSelect == 1)                         Controller.sellFIFO(googList, quantity);                     else                         Controller.sellFIFO(amazList, quantity);                 }             }                     } while(true);         input.close();     }                 public static void buyStock(LinkedList list, String name, int quantity, double price) {         Stock temp = new Stock(name,quantity,price);         list.push(temp);         System.out.printf("You bought %d shares of %s stock at $%.2f per share %n", quantity, name, price);     }         public static void sellLIFO(LinkedList list, int numToSell) {         // You need to write the code to sell the stock using the LIFO method (Stack)         // You also need to calculate the profit/loss on the sale         double total = 0; // this variable will store the total after the sale         double profit = 0; // the price paid minus the sale price, negative # means a loss         System.out.printf("You sold %d shares of %s stock at %.2f per share %n", numToSell, list.element().getName(), total/numToSell);         System.out.printf("You made $%.2f on the sale %n", profit);     }         public static void sellFIFO(LinkedList list, int numToSell) {         // You need to write the code to sell the stock using the FIFO method (Queue)         // You also need to calculate the profit/loss on the sale         double total = 0; // this variable will store the total after the sale         double profit = 0; // the price paid minus the sale price, negative # means a loss         System.out.printf("You sold %d shares of %s stock at %.2f per share %n", numToSell, list.element().getName(), total/numToSell);         System.out.printf("You made $%.2f on the sale %n", profit);     }         }   //Driver public class Driver {     public static void main(String[] args) {         System.out.println("Java Stock Exchange");         new Controller();             } }   //Refer to images first for code and this will come after in order //Stock public Stock(int quantity, double price) {         this.name = "undefined";         this.quantity = quantity;         this.price = price;     }     public String getName() {         return name;     }     public void setName(String name) {         this.name = name;     }     public int getQuantity() {         return quantity;     }     public void setQuantity(int quantity) {         this.quantity = quantity;     }     public double getPrice() {         return price;     }     public void setPrice(double price) {         this.price = price;     }         public String toString() {         return "Stock: " + this.getName() + "  Quantity: " + this.getQuantity() + "  Price: " + this.getPrice();     } } Implement the following:  1. Add the missing functionality in “controller.java” to finish the “sellLIFO” and “sellFIFO” methods. 2. Provide error checking so users can’t sell a stock they don’t own or try to sell more stock than they own. Eliminate that runtime exception. 3. Must change to where user has to input the stock they want to work with, not just Google or Amazon that can be stored in the LinkedList. 4. We like the layout and design of the application so don’t change any of the other methods or objects. Only edit the Controller.java file!   5. Solution must be new (for postive feedback) and output should state the profit from selling number of stocks that user inputs!

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Draw a UML class diagram for the following code: import java.util.*; public class QueueOperationsDemo {    public static void main(String[] args) {        Queue<String> linkedListQueue = new LinkedList<>();        linkedListQueue.add("Apple");        linkedListQueue.add("Banana");        linkedListQueue.add("Cherry");         System.out.println("Is linkedListQueue empty? " + linkedListQueue.isEmpty());         System.out.println("Front element: " + linkedListQueue.peek());        System.out.println("Removed element: " + linkedListQueue.remove());        System.out.println("Front element after removal: " + linkedListQueue.peek());         Queue<Integer> arrayDequeQueue = new ArrayDeque<>();        arrayDequeQueue.add(10);        arrayDequeQueue.add(20);        arrayDequeQueue.add(30);         System.out.println("Is arrayDequeQueue empty? " + arrayDequeQueue.isEmpty());         System.out.println("Front element: " + arrayDequeQueue.peek());…

Simple JAVA linkedlist code implementation please help and complete any part you can - Without using the java collections interface (ie do not import java.util.List,LinkedList, Stack, Queue...)- Create an implementation of LinkedList interface- For the implementation create a tester to verify the implementation of thatdata structure performs as expected Build Bus Route – Linked List- Your task is to:o Implement the LinkedList interface (fill out the implementation shell)o Put your implementation through its paces by exercising each of themethods in the test harnesso Create a client (a class with a main) ‘BusClient’ which builds a busroute by performing the following operations on your linked list:o§ Create (insert) 4 stations§ List the stations§ Check if a station is in the list (print result)• Check for a station that exists, and onethat doesn’t§ Remove a station§ List the stations§ Add a station before another station§ List the stations§ Add a station after another station§ Print the…

Given the following code in Java and attached images( containing related code): //Controller (ONLY EDIT THE Controller.java file) import java.util.LinkedList; import java.util.Scanner; public class Controller {         public Controller() {         LinkedList<Stock> googList = new LinkedList<Stock>();         LinkedList<Stock> amazList = new LinkedList<Stock>();         Scanner input = new Scanner(System.in);                 do {             System.out.print("Enter 1 for Google stock or 2 for Amazon, 3 to quit: ");             int stockSelect = input.nextInt();             if(stockSelect == 3)                 break;             System.out.print("Input 1 to buy, 2 to sell: ");             int controlNum = input.nextInt();             System.out.print("How many stocks: ");             int quantity = input.nextInt();                         if(controlNum == 1) {                 System.out.print("At what price: ");                 double price =…