1. Given below is the incomplete Java program for Queue Methods in Java. Use the correct Java codes to complete this program. Import java.util.*; //Queue Methods In Java public class Q3 { public static void main(String ( args) { Queue q1 - new LinkedList () ; //Add elements to the Queue q1.add (10) ; q1.add (20) ; q1.add (30) ; q1.add (40); q1.add (50); System.out.println("Elements in Queue:"+q1) ; //removes first element from the queue System.out.println("Element removed from the queue: //returns head of the queue System.out.println("Head of the queue: //removes and returns the head system.out.println ("Returned Head of the queue:" //returns head of the queue System.out.println ("Head of the queue: " //print the contents of the Queue System.out.println("Final Queue:"
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- Starter code for ShoppingList.java import java.util.*;import java.util.LinkedList; public class ShoppingList{ public static void main(String[] args) { Scanner scnr=new Scanner(System.in); LinkedList<ListItem>shoppingList=new LinkedList<ListItem>();//declare LinkedList String item; int i=0,n=0;//declare variables item=scnr.nextLine();//get input from user while(item.equals("-1")!=true)//get inputuntil user not enter -1 { shoppingList.add(new ListItem(item));//add into shoppingList LinkedList n++;//increment n item=scnr.nextLine();//get item from user } for(i=0;i<n;i++) { shoppingList.get(i).printNodeData();//call printNodeData()for each object } }} class ListItem{ String item; //constructor ListItem(String item) { this.item=item; } void printNodeData() { System.out.println(item); }}C. package Final; import java.util.HashSet; public class LLCycle_FE { public static void main(String[] args) { Node head = buildLL(); // Given the above linked list write the 2 methods below (removeDuplicates and showLL) System.out.printf("\n --------- "); // This method will remove any duplicate LL nodes (that is, with the same color) head = removeDuplicates( head ); showLL( head ); } **public static Node removeDuplicates(Node head) { return head; } ** private static void showLL(Node head) { // ToDo: Output the entire linked list } private static Node buildLL() { // Use this code to create your LL Node head = new Node("Red", null); Node n2 = new Node("Blue", null); head.next = n2; Node n3 = new Node("Green", null); n2.next = n3; Node n4 = new Node("Yellow", null); n3.next = n4; Node n5 = new…Analyze the following code: import java.util.*; public class Test { public static void main(String[] args) { PriorityQueue queue = } } new PriorityQueue( Arrays.asList(60, 10, 50, 30, 40, 20)); for (int i: queue) System.out.print(i + "); The program displays 60 10 50 30 40 20 The program displays 10 20 30 40 50 60 The program displays 60 50 40 30 20 10 There is no guarantee that the program displays 10 20 30 40 50 60
- please fix code to match "enter patients name in lbs" thank you import java.util.LinkedList;import java.util.Queue;import java.util.Scanner; interface Patient { public String displayBMICategory(double bmi); public String displayInsuranceCategory(double bmi);} public class BMI implements Patient { public static void main(String[] args) { /* * local variable for saving the patient information */ double weight = 0; String birthDate = "", name = ""; int height = 0; Scanner scan = new Scanner(System.in); String cont = ""; Queue<String> patients = new LinkedList<>(); // do while loop for keep running program till user not entered q do { System.out.print("Press Y for continue (Press q for exit!) "); cont = scan.nextLine(); if (cont.equalsIgnoreCase("q")) { System.out.println("Thank you for using BMI calculator"); break;…please convert this into c++ import java.util.Iterator;import java.util.NoSuchElementException; public class Queue<Item> implements Iterable<Item> { private int n; // number of elements on queue private Node first; // beginning of queue private Node last; // end of queue // helper linked list class private class Node { private Item item; private Node next; } /** * Initializes an empty queue. */ public Queue() { first = null; last = null; n = 0; } /** * Returns true if this queue is empty. * * @return {@code true} if this queue is empty; {@code false} otherwise */ public boolean isEmpty() { return first == null; } /** * Returns the number of items in this queue. * * @return the number of items in this queue */ public int size() { return n; } /** * Returns the number of items in this queue. * * @return the…Java Programming: There is an error in the code so make sure to fix it: OrderedMergeIterator.java import java.util.Iterator;import java.util.Map;import java.util.PriorityQueue;import java.util.Queue; public class OrderedMergeIterator<DataElement extends Comparable<? super DataElement>> implements Iterator<DataElement> {private Queue<Map.Entry<DataElement, Iterator<DataElement>>> queue; public OrderedMergeIterator(Iterator<DataElement>... iterators) {queue = new PriorityQueue<>((entry1, entry2) -> entry1.getKey().compareTo(entry2.getKey())); for (Iterator<DataElement> iterator : iterators) {if (iterator.hasNext()) {DataElement element = iterator.next();queue.add(Map.entry(element, iterator));}}} @Overridepublic boolean hasNext() {return !queue.isEmpty();} @Overridepublic DataElement next() {if (hasNext()) {Map.Entry<DataElement, Iterator<DataElement>> entry = queue.poll();DataElement element =…
- In java by using this Queue class: public class Queue {private int rear, front;private Object[] elements;Queue(int capacity) {elements = new Object[capacity];rear = -1;front = 0;}void enqueue(Object data) {if (isFull()) {System.out.println("Queue overflow");} else {rear = (rear + 1) % elements.length;elements[rear] = data;}}Object dequeue() {if (isEmpty()) {System.out.println("Queue empty");return null;} else {Object retData = elements[front];elements[front] = null;front = (front + 1) % elements.length;return retData;}}Object peek() {if (isEmpty()) {System.out.println("Queue is empty");return null;} else {return elements[front];}}boolean isEmpty() {return elements[front] == null;}boolean isFull() {return (front == (rear + 1) % elements.length &&elements[front] != null && elements[rear] != null);}int size() {if (rear >= front) {return rear - front + 1;} else if (elements[front] != null) {return elements.length - (front - rear) + 1;} else {return 0;}}void…Question 1 Analyze the following code: import java.util.*: public class Test { public static void main (String[] args){ PriorityQueue queue = new PriorityQueue( Arrays.asList (60, 10, 50, 30, 40, 20)): while (!queue.isEmpty()) System.out.print(queue.poll () + " "); O The program displays 10 20 30 40 50 60 O The program displays 60 50 40 30 20 10 The program displays 60 10 50 30 40 20 O There is no guarantee that the program displays 10 20 30 40 50 60 A Moving to the next question prevents changes to this answerIn Java Implement a queue, add data to the queue and display ouput using buil-in functions using getMaxSize() and getCurrent Size()
- The implementation of a queue in an array, as given in this chapter, uses the variable count to determine whether the queue is empty or full. You can also use the variable count to return the number of elements in the queue. On the other hand, class linkedQueueType does not use such a variable to keep track of the number of elements in the queue. Redefine the class linkedQueueType by adding the variable count to keep track of the number of elements in the queue. Modify the definitions of the functions addQueue and deleteQueue as necessary. Add the function queueCount to return the number of elements in the queue. Also, write a program to test various operations of the class you defined.Exercise #5 What is the output of the following code? а. import java.util.LinkedList; import java.util.Queue; public class QueueExample { public static void main(String[] args) Queueq=new LinkedList(); for (int i = 0; i <7; i+=2) q.add(i); System.out.println("Elements of queue "+ q); int e = q.remove(); System.out.println("removed element-"+ e); e = q.remove(); System.out.println("removed element-"+ e); q.add(4); System.out.println(q); int head = q.peek(); System.out.println("head of queue-"+ head); System.out.println(q); int size = q.size(); System.out.println("Size of queue-"+ size);Java language, do not use queue implementation interface, use array for your program. Queue Interface (FIFO) void enqueue(Object) Object dequeue() String toString() boolean isEmpty() boolean equals(Object) Your software should be able to automatically resize your array once capacity is reached, and may be tested beyond 100 elements. queueTests() { System.out.println("\nQueue Tests"); Queue a = new Queue(); System.out.println("dequeue empty q"); a.dequeue(); a.enqueue('B'); a.enqueue('a'); a.enqueue('t'); System.out.println(a.toString()); while (a.isEmpty() == false) { System.out.println(a.dequeue()); } System.out.println("Fill past initial size"); for (int i = 0; i < 110; i++) { a.enqueue(i); } System.out.println("size: "+ a.size()); }