Answered: import java.util.*; public class…

import java.util.*; public class BSTChecker { public static Node checkBSTValidity (Node rootNode) { // Your code here (remove the placeholder line below) return rootNode; }

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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package circularlinkedlist;import java.util.Iterator; public class CircularLinkedList<E> implements Iterable<E> { // Your variablesNode<E> head;Node<E> tail;int size; // BE SURE TO KEEP TRACK OF THE SIZE // implement this constructorpublic CircularLinkedList() {} // I highly recommend using this helper method// Return Node<E> found at the specified index// be sure to handle out of bounds casesprivate Node<E> getNode(int index ) { return null;} // attach a node to the end of the listpublic boolean add(E item) {this.add(size,item);return false; } // Cases to handle// out of bounds// adding to empty list// adding to front// adding to "end"// adding anywhere else// REMEMBER TO INCREMENT THE SIZEpublic void add(int index, E item){ } // remove must handle the following cases// out of bounds// removing the only thing in the list// removing the first thing in the list (need to adjust the last thing in the list to point to the beginning)// removing the last…
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…
Help me convert this into java. Thanks a lot! #include<bits/stdc++.h>using namespace std;struct Node{public: int key; struct Node *left,*right;};struct Node *newNode(int data){ Node *temp = (struct Node*)malloc(sizeof(struct Node)); temp->key = data; temp->left = NULL; temp->right = NULL; return temp;}struct Node *insert(Node *node,int key){ if(node == NULL) return newNode(key); if(key<node->key) node->left = insert(node->left,key); else if(key>node->key) node->right = insert(node->right,key); return node;} int maxDepth(Node* node) { if (node == NULL) return 0; else { int lDepth = maxDepth(node->left); int rDepth = maxDepth(node->right); if (lDepth > rDepth) return(lDepth + 1); else return(rDepth + 1); } } int main(){ int t; cin>>t; while(t--) { int n; cin>>n; int…
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 {…
java: Implement the class Node public class Node { private char data; private Node nextNode; //implements default constructor //implements parameterize constructor take integer as input in parameter a assign that integer to data and assign null to nextNode //implement setters and getters } Implement the class Stack having one member having type Node public class Stack { private Node top; public void push (); public Node pop (); public Boolean isEmpty(); return true if stack is empty // implements all its function and write time complexity of its function
5- Write an efficient java method that computes and returns the height from node t in a btree of any degree. . Please write proper comments in your java code. Your java code should not read or print anything. Assume btree node is defined as follow: private class node{ int count, data(); node parent, link[]:} // end class node private int height(node t){
Convert this into Java language ... Thanks! #include<bits/stdc++.h>using namespace std;struct Node{public:int key;struct Node *left,*right;};struct Node *newNode(int data){Node *temp = (structNode*)malloc(sizeof(struct Node));temp->key = data;temp->left = NULL;temp->right = NULL;return temp;}struct Node *insert(Node *node,int key){if(node == NULL)return newNode(key); if(key<node->key)node->left = insert(node->left,key);else if(key>node->key)node->right = insert(node->right,key);return node;}int maxDepth(Node* node){if (node == NULL)return 0;else{int IDepth = maxDepth(node->left);int rDepth = maxDepth(node->right);if (IDepth > rDepth);return(IDepth + 1);else return(rDepth + 1);}int main(){int t;cin> >t;while(t--){int n;cin> >n;int a[n];for(int i=0;i<n;i++)cin> >a[i]; struct Node *root = newNode(a[0]) ;for(int i=1;i<n;i++){insert(root,a[i]);}int d = maxDepth(root);cout< <"max.no.of.person he…
starter code: in java pls and thank you! public class LinkedList { private Node head; private Node tail; public void add(String item) { Node newItem = new Node(item); // handles the case where the new item // is the only thing in the list if (head == null) { head = newItem; tail = newItem; return; } tail.next = newItem; tail = newItem; } public void print() { Node current = head; while (current != null) { System.out.println(current.item); current = current.next; } } public void printWithSkips() { // TODO your code here } class Node { String item; Node next; public Node(String item) { this.item = item; this.next = null; } } } and public class Driver { public static void…
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)…
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]);…
Computer Science QuestionConsider the adjacency list (list of neighbors) data structure for representing a graph. struct node{int data; node * next;};class Graph { …………private:node neighborList[30];int last;};Write a method to print the neighbors of a given node n, void Graph::print(int n){??????}
Course: Data Structure and Algorithims Language: Java Kindly make the program in 2 hours. Task is well explained. You have to make the proogram properly in Java: Restriction: Prototype cannot be change you have to make program by using given prototype. TAsk: Create a class Node having two data members int data; Node next; Write the parametrized constructor of the class Node which contain one parameter int value assign this value to data and assign next to null Create class LinkList having one data members of type Node. Node head Write the following function in the LinkList class publicvoidinsertAtLast(int data);//this function add node at the end of the list publicvoid insertAthead(int data);//this function add node at the head of the list publicvoid deleteNode(int key);//this function find a node containing "key" and delete it publicvoid printLinkList();//this function print all the values in the Linklist public LinkListmergeList(LinkList l1,LinkList l2);// this function…