Answered: This BST class leaks memory. In the…

Engineering

Computer Science

This BST class leaks memory. In the space below, define a method that will fix the memory leak. Neatness counts!

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

See similar textbooks

Similar questions

JAVA PROGRAM ASAP *********** THIS PROGRAM MUST WORK IN HYPERGRADE AND PASS ALL THE TEST CASES. Please create a program BECAUSE IT IS. MY HOMEWORK ASSIGNMENT with the following parts which are down below: The left index is inclusive and the right index is exclusive. 1. public static void bubbleSort(int[] array, int left, int right) { // your code here } 2. public static void insertionSort(int[] array, int left, int right) { // your code here } 3. public static void selectionSort(int[] array, int left, int right) { // your code here } Test Case 1 Please enter a space separated list of numbers to sort or type QUIT to exit:\n4 3 2 1ENTERSorting first half of the array using Bubble Sort algorithm:\n3 4 2 1\nSorting second half of the array using Bubble Sort algorithm:\n4 3 1 2\nSorting the array using Bubble Sort algorithm:\n1 2 3 4\nSorting first half of the array using Insertion Sort algorithm:\n3 4 2 1\nSorting second half of the array using Insertion…
class ADSockDrawer(object): def__init__(self): self.drawer = AD() defadd_sock(self, color): """Adds a sock of the given color to the drawer. Do it in one line of code.""" # YOUR CODE HERE defget_pair(self, color): """Returns False if there is no pair of the given color, and True if there is. In the latter case, it removes the pair from the drawer. Do it in 5 lines of code or less.""" # YOUR CODE HERE @property defavailable_colors(self): """Lists the colors for which we have at least two socks available. Do it in 1 line of code.""" # YOUR CODE HERE
(Find the nonleaves) Java Define a new class named BSTWithNumberOfNonLeaves that extends BST with the following methods: /** Return the number of nonleaf nodes */public int getNumberofNonLeaves() // BEGIN REVEL SUBMISSION class BSTWithNumberOfNonLeaves<E> extends BST<E> { /** Create a default BST with a natural order comparator */ public BSTWithNumberOfNonLeaves() { super(); } /** Create a BST with a specified comparator */ public BSTWithNumberOfNonLeaves(java.util.Comparator<E> c) { super(c); } /** Create a binary tree from an array of objects */ public BSTWithNumberOfNonLeaves(E[] objects) { super(objects); } public int getNumberOfNonLeaves() { return getNumberOfNonLeaves(root); } /** Returns the number of non-leaf nodes */ private int getNumberOfNonLeaves(TreeNode<E> root) { // WRITE YOUR CODE HERE } } // END REVEL SUBMISSION
Complete the method loadBuses(String bfile) that reads information bus information from afile (bfile contains the filename) . Each row in the file should trigger the creation of aninstance of bus or an appropriate subclass, according to the data in table 1. All buses createdshould be added to an arraylist. LoadBuses should return the populated arraylist. public ArrayList<Bus> loadBuses(String bfile ) { Scanner bscan = null; ArrayList<Bus> blist = new ArrayList<Bus>(); return blist; }
Rules: Corner cases. Throw the specified exception for the following corner cases: Throw an IllegalArgumentException if the client calls either addFirst() or addLast() with a null argument. Throw a java.util.NoSuchElementException if the client calls either removeFirst() or removeLast when the deque is empty. Throw a java.util.NoSuchElementException if the client calls the next() method in the iterator when there are no more items to return. Unit testing. Your main() method must call directly every public constructor and method to help verify that they work as prescribed (e.g., by printing results to standard output). Performance requirements. Your implementation must achieve the following worst-case performance requirements: A deque containing n items must use at most 48n + 192 bytes of memory, not including the memory for the items themselves. Each deque operation (including construction) must take constant time. Each iterator operation (including construction) must take…
java quetion Write a generic AddressBook<E extends Person> class that manages a collection ofPerson objects. The AddressBook class is a generic class limited to person objects. Forexample, once you instantiate an AdressBook of Student objects, you cannot add anyother type of person objects into that instance of address book.The AddressBook should have methods to add, delete, or search for a Person objects inthe address book.• The add method should add a person object to the address book. Make sure thatthe add method does not add duplicate person objects to the address book.• The delete method should remove the specified person object from the addressbook.• The search method that searches the address book for a specified person andreturns the list of persons matching the specified criteria. The search can be doneeither by first name, last name, or person id.Write an AddressBookTester class to test your class.
JAVA PROGRAM ASAP Please Modify this program ASAP BECAUSE it does not pass all the test cases when I upload it to hypergrade Please modify so it passes all the test cases because it says 0 out of 2 passed. The program must pass the test case when uploaded to Hypergrade. Thank you import java.util.HashMap;import java.io.BufferedReader;import java.io.FileReader;import java.io.IOException;import java.util.Scanner;public class MorseCodeConverter { private static HashMap<Character, String> morseMap = new HashMap<>(); public static void main(String[] args) { loadMorseCodes(); Scanner scanner = new Scanner(System.in); System.out.println("Please enter a string to convert to Morse code:"); String input = scanner.nextLine().toUpperCase(); String morseCode = convertToMorse(input); System.out.println(morseCode); } private static void loadMorseCodes() { try (BufferedReader reader = new BufferedReader(new…
In JAVA please Write a generic AddressBook<E extends Person> class that manages a collection ofPerson objects. The AddressBook class is a generic class limited to person objects. Forexample, once you instantiate an AdressBook of Student objects, you cannot add anyother type of person objects into that instance of address book.The AddressBook should have methods to add, delete, or search for a Person objects inthe address book.• The add method should add a person object to the address book. Make sure thatthe add method does not add duplicate person objects to the address book.• The delete method should remove the specified person object from the addressbook.• The search method that searches the address book for a specified person andreturns the list of persons matching the specified criteria. The search can be doneeither by first name, last name, or person id.Write an AddressBookTester class to test your class.
C++ Programming (no copy-pastes, please) Write a generic class that receives a parameter T. The class must have as attributes two values that define a pair. The class must also have the following methods:- T getMax(): returns the highest value;- T getMin(): returns the smallest value;- T getSum(): returns the sum of the values. Please comment all the code.
Make any necessary modifications to the RushJob class so that it can be sorted by job number. Modify the JobDemo3 application so the displayed orders have been sorted. using System; using static System.Console; using System.Globalization; class JobDemo4 { static void Main() { RushJob[] jobs = new RushJob[5]; int x, y; double grandTotal = 0; bool goodNum; for(x = 0 ; x < jobs.Length; ++x) { jobs[x] = new RushJob(); Write("Enter job number "); jobs[x].JobNumber = Convert.ToInt32(ReadLine()); goodNum = true; for(y = 0; y < x; ++y) { if(jobs[x].Equals(jobs[y])) goodNum = false; } while(!goodNum) { Write("Sorry, the job number " + jobs[x].JobNumber + " is a duplicate. " + "\nPlease reenter "); jobs[x].JobNumber = Convert.ToInt32(ReadLine()); goodNum = true;…
JAVA PROGRAM PLEASE MODIFY THIS PROGRAM SO WHEN I UPLOAD IT TO HYPERGRADE IT PASSES THE TEST CASE and take out the following from the program please: Boynames.txt is missing.\n Girlnames.txt is missing.\n Both data files are missing.\n THE TEST CASE DOES NOT ASK FOR IT. PLEASE REMOVE IT. I HAVE PROVIDED THE TEST CASE THAT FAILED AND THE INPUTS AS A SCREENSHOT. import java.io.*;import java.util.*;public class NameSearcher { private static Map<String, Integer> loadFileToMap(String filename) throws FileNotFoundException { Map<String, Integer> namesMap = new HashMap<>(); File file = new File(filename); if (!file.exists()) { throw new FileNotFoundException(filename); } try (Scanner scanner = new Scanner(file)) { int lineNumber = 1; while (scanner.hasNext()) { String line = scanner.next().trim().toLowerCase(); namesMap.put(line, lineNumber); lineNumber++;…
PLZ help with the following: True/False In java it is possible to throw an exception, catch it, then re-throw that same exception if it is desired GUIs are windowing interfaces that handle user input and output. An interface can contain defined constants as well as method headings or instead of method headings. When a recursive call is encountered, computation is temporarily suspended; all of the information needed to continue the computation is saved and the recursive call is evaluated. Can you have a static method in a nonstatic inner class?