public class LinkedList3 { private Node head = null; public class Node { char data; Node next; Node(char c) { data = c; } } build these 3 methods in java language public int countOccurencesOf(char c) { int count = 0; return count; } public char getLast() { } public void deleteLast() { }
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public class LinkedList3 {
private Node head = null;
public class Node {
char data;
Node next;
Node(char c) {
data = c;
}
}
build these 3 methods in java language
public int countOccurencesOf(char c) {
int count = 0;
return count;
}
public char getLast() {
}
public void deleteLast() {
}
The functions have been programmed by me in the below steps.
Step by step
Solved in 2 steps
- public class HashIntSet { private class Node{ public int data; public Node next; public Node(int value) { data = value; next = null; } public Node(int value, Node next) { data = value; this.next = next; } } private Node[] elements; private int size; public HashIntSet() { elements = new Node[10]; size = 0; } public int hash(int i) { return (Math.abs(i) % elements.length); } public void add(int value) { if(!contains(value)) { int h = hash(value); Node newNode = new Node(value); newNode.next = elements[h]; elements[h] = newNode; size++; } } public boolean contains(int value) { Node current = elements[hash(value)]; while(current != null) { if(current.data == value) { return true; } current = current.next; } return false; } public String toString() { String s = ""; for(Node n:elements) { Node current = n; while(current != null) { s += current.data + " "; current = current.next; }…Please help with the following in JAVA static class Node { String element; public Node next; public Node prev; public Node(String element){ this.element = element; } } public static void main(String[] args){ Node firstNode=new Node("one"); //create the first node referenced by head Node second=new Node("two"); head.next=second; second.prev=firstNode; //create the second node and attach it to the first Node third=new Node("three"); second.next=third; third.prev=second; //create the third node and attach it to the second Node fourth=new Node("four"); third.next=fourth; fourth.prev=third; //create the fourth node and attach it to the third Node fifth=new Node("five"); four.next= fifth; fifth.prev= four; //create the fifth node and attach it to the fourth Node lastNode= fifth; System.out.println("\n ---The original doubly linked list - forward"); Node<String> current=firstNode; while(current!=null)…public class Queue {public static void main(String[] args) {}public int[] arr;int count=0;int top=0;int size=4;int queue[]=new int[size];Queue(int size){arr=new int[size];}void enqueue(int val){if(count==arr.length){System.out.println("Queue is full");}else{arr[count]=val;count++;}}int dequeue(){if(count==0){System.out.print("stack is empty"); return -1;}else{count--;return arr[top++];}}int peek(){if(count==0){System.out.print("queue is empty"); return -1;}return arr[count-1];} public boolean isempty(){if(count==0){System.out.println("Queue is empty");return true;}return false;}public void display(){for (int i = 0; i < queue.length; i++) {System.out.println("Queue [" + i + "] " + queue[i]);}}} (I need the algorithm of this code)
- class Node{int data;Node next;public Node (int d) {this(d,null);} public Node (int d,Node n) {data=d;next=n;}}public class List {private Node head; public List() {head=null;}public void addBegenning(int d) {Node n= new Node(d);if (head==null) {head=n;}else {n.next=head;head=n;}}public void addEnd(int d) {if (head==null) {head=new Node(d);}else {Node tmp=head;while(tmp.next!=null)tmp=tmp.next;tmp.next=new Node(d);} }public String toString() {Node tmp=head;String ans="";while(tmp!=null) {ans+=tmp.data+"-->";tmp=tmp.next;}return ans;}public void deleteBegging() {if (head!=null) {head=head.next;}}public void deleteEnd() {Node tmp=head;Node prev= null;while(tmp.next!=null) {prev=tmp;tmp=tmp.next;}prev.next=null;} public boolean contains(int d) {Node tmp=head;while (tmp!=null) {if (tmp.data==d)return true;tmp=tmp.next;}return false; }public void Remove(int d) {//if the d not exsist Node tmp=head;Node prev= null;while (tmp.data!=d) {// tmp!=null…import java.util.Scanner; public class Inventory { public static void main (String[] args) { Scanner scnr = new Scanner(System.in); InventoryNode headNode; InventoryNode currNode; InventoryNode lastNode; String item; int numberOfItems; int i; // Front of nodes list headNode = new InventoryNode(); lastNode = headNode; int input = scnr.nextInt(); for(i = 0; i < input; i++ ) { item = scnr.next(); numberOfItems = scnr.nextInt(); currNode = new InventoryNode(item, numberOfItems); currNode.insertAtFront(headNode, currNode); lastNode = currNode; } // Print linked list currNode = headNode.getNext(); while (currNode != null) { currNode.printNodeData(); currNode…class overload { int x; double y; void add(int a , int b) { x = a + b; } void add(double c , double d) { y = c + d; } overload() { this.x 0; %3D this.y = 0; } %3D } class Overload_methods { public static void main(String args[]) { overload obj int a = 2; double b - 3.2; obj.add(a, a); obj.add(b, b); System.out.println(obj.x + } = new overload(); + obj.y); } #3Run the code
- class Queue { private static int front, rear, capacity; private static int queue[]; Queue(int c) { front = rear = 0; capacity = c; queue = new int[capacity]; } static void queueEnqueue(int data) { if (capacity == rear) { System.out.printf("\nQueue is full\n"); return; } else { queue[rear] = data; rear++; } return; } static void queueDequeue() { if (front == rear) { System.out.printf("\nQueue is empty\n"); return; } else { for (int i = 0; i < rear - 1; i++) { queue[i] = queue[i + 1]; } if (rear < capacity) queue[rear] = 0; rear--; } return; } static void queueDisplay() { int i; if (front == rear) { System.out.printf("\nQueue is Empty\n"); return; } for (i = front; i < rear; i++) { System.out.printf(" %d <-- ", queue[i]); } return; } static void queueFront() { if (front == rear) { System.out.printf("\nQueue is Empty\n"); return; } System.out.printf("\nFront Element is: %d", queue[front]);…public class LabProgram { public static void main(String args[]) { Course cis162 = new Course(); int beforeCount; String toDrop; // Example students for testing cis162.addStudent(new Student("Henry", "Nguyen", 3.5)); cis162.addStudent(new Student("Brenda", "Stern", 2.0)); cis162.addStudent(new Student("Lynda", "Robison", 3.2)); cis162.addStudent(new Student("Sonya", "King", 3.9)); toDrop = "Stern"; beforeCount = cis162.countStudents(); cis162.dropStudent(toDrop); System.out.println("Course size: " + beforeCount + " students"); System.out.println("Course size after drop: " + cis162.countStudents() + " students"); } } import java.text.DecimalFormat; // Class representing a student public class Student { private String first; // first name private String last; // last name private double gpa; // grade point average // Student class constructor public Student(String f, String l, double g) {…import java.util.Scanner; public class ShoppingList { public static void main (String[] args) { Scanner scnr = new Scanner(System.in); ItemNode headNode; // Create intNode objects ItemNode currNode; ItemNode lastNode; String item; int i; // Front of nodes list headNode = new ItemNode(); lastNode = headNode; int input = scnr.nextInt(); for(i = 0; i < input; i++ ){ item = scnr.next(); currNode = new ItemNode(item); lastNode.insertAtEnd(headNode, currNode); lastNode = currNode; } // Print linked list currNode = headNode.getNext(); while (currNode != null) { currNode.printNodeData(); currNode = currNode.getNext(); } }}
- class Queue { private static int front, rear, capacity; private static int queue[]; Queue(int size) { front = rear = 0; capacity = size; queue = new int[capacity]; } // insert an element into the queue static void queueEnqueue(int item) { // check if the queue is full if (capacity == rear) { System.out.printf("\nQueue is full\n"); return; } // insert element at the rear else { queue[rear] = item; rear++; } return; } //remove an element from the queue static void queueDequeue() { // check if queue is empty if (front == rear) { System.out.printf("\nQueue is empty\n"); return; } // shift elements to the right by one place uptil rear else {…import java.util.Scanner; class InventoryNode { private String item; private int numberOfItems; private InventoryNode nextNodeRef; // Reference to the next node public InventoryNode() { item = ""; numberOfItems = 0; nextNodeRef = null; } public InventoryNode(String itemInit, int numberOfItemsInit) { this.item = itemInit; this.numberOfItems = numberOfItemsInit; this.nextNodeRef = null; } public InventoryNode(String itemInit, int numberOfItemsInit, InventoryNode nextLoc) { this.item = itemInit; this.numberOfItems = numberOfItemsInit; this.nextNodeRef = nextLoc; } // Getter for item public String getItem() { return item; } // Getter for numberOfItems public int getNumberOfItems() { return numberOfItems; } // Getter for nextNodeRef public InventoryNode getNext() { return this.nextNodeRef; } // Setter for nextNodeRef public void…public class worksheet3_1 { public static void main(String[] arg) { ShadowingExample example = new ShadowingExample(); example.x = 99; example.sampleMethod(); }}class ShadowingExample { int x; public void sampleMethod() { int x = 0; System.out.println("the value of local variable x = " + ………………………………………………); System.out.println("the value of instance variable x = " + …………………………………………); }} what should be written in the second print statement so that the output is: the value of instance variable x = 99 what should be written in the first print statement so that the output is: the value of local variable x = 0 options are: samplemethod.x this.x shadowingexample.x x Answer 1 Question 1
