Starting Out with Java: From Control Structures through Data Structures (4th Edition) (What's New in Computer Science)
4th Edition
ISBN: 9780134787961
Author: Tony Gaddis, Godfrey Muganda
Publisher: PEARSON
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Chapter 20, Problem 2MC
Program Description Answer
A stack is a collection of items which are accessed in last-in-first-out fashion.
Hence, the correct answer is option “A”.
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Students have asked these similar questions
The following method is defined within a linked list class. What does it do?
void MyList::doSomething() { Node* p = head;
while (p) { cout << p->value << " "; p = p->next; }}
Group of answer choices
inserts a node into linked list
deletes a node from linked list
displays contents of linked list
destroys the entire linked list
34Given that values is of type LLNode<Integer> and references a linked list (non-empty) of Integer objects, what does the following code do if invoked as mystery(values)?
void mystery(LLNode<Integer> list){if (list != null){System.out.println(list.getInfo());mystery(list.getLink());}}Group of answer choicesprints the list from start to end.prints the first element on the list.prints the last element on the list.prints the list in reverse order.None of these is correct.
You will be given a Linked List of Integers. Remove all even numbers, and then print the Linked List. You are not allowed to use any data structure other than a custom built linked list. This should consist ONLY of a node class. You should not be creating a secondary class to handle the data structure.
public class Node {
private E item;
private Node next;
public Node(E item, Node next) {
this.item = item;
this.next = next;
}
public E getItem() {
return item;
}
public void setItem(E item) {
this.item = item;
}
public Node getNext() {
return next;
}
public void setNext(Node next) {
this.next = next;
}
}
public Node removeInts(Node linkedList) {
return null; // Return the start node of your linked list as well as printing it.
}
Chapter 20 Solutions
Starting Out with Java: From Control Structures through Data Structures (4th Edition) (What's New in Computer Science)
Ch. 20.3 - Prob. 20.1CPCh. 20.3 - Prob. 20.2CPCh. 20.3 - Prob. 20.4CPCh. 20.3 - Prob. 20.5CPCh. 20.6 - Prob. 20.6CPCh. 20.6 - Prob. 20.7CPCh. 20.6 - Prob. 20.8CPCh. 20.6 - Prob. 20.9CPCh. 20 - Prob. 1MCCh. 20 - Prob. 2MC
Ch. 20 - Prob. 3MCCh. 20 - The concept of seniority, which some employers use...Ch. 20 - Prob. 5MCCh. 20 - Prob. 6MCCh. 20 - Prob. 8TFCh. 20 - Prob. 9TFCh. 20 - Prob. 10TFCh. 20 - Prob. 1FTECh. 20 - Prob. 2FTECh. 20 - Prob. 3FTECh. 20 - Prob. 4FTECh. 20 - Prob. 5FTECh. 20 - Prob. 1AWCh. 20 - Prob. 2AWCh. 20 - Suppose that you have two stacks but no queues....Ch. 20 - Prob. 1SACh. 20 - Prob. 2SACh. 20 - Prob. 3SACh. 20 - Prob. 4SACh. 20 - Prob. 5SACh. 20 - Prob. 6SA
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- Given the class Node below. We have a linked list with head node “A”. Write the code to remove the node “C” in the following linked list. public class Node { public String element; public Node next; }arrow_forwardA skip listThe second programming homework is already on a server (http://marmoset.famnit.upr.si).In this task, a skip list data structure should be implemented. You can follow the followinginstructions:- Implement the class NodeSkipList with two components, namely key node and arrayof successors. You can also add a constructor, but you do not need to add anymethod.- In the class SkipList implement a constructor SkipList(long maxNodes). The parameter maxNodes determines the maximal number of nodes that can be added to askip list. Using this parameter we can determine the maximal height of a node, thatis, the maximal length of the array of successors. As the maximal height of a nodeit is usually taken the logarithm of the parameter. Further, it is useful to constructboth sentinels of maximal height.- In the class SkipList it is useful to write a method which simulates coin flip andreturns the number of all tosses until the first head comes up. This number representsthe height of a node…arrow_forwardWhich one of the following node is considered the top of the stack if the stack is implemented using the linked list? A. First node B. Second node C. Last node D. None of the abovearrow_forward
- URGENT URGENT URGENT !!!! Write a void method swapStackwithQueue that takes MyStack and MyQueue Objects as parameters and exchanges the elements. a) The top element of the old stack becomes the rear element of the new queue. b b) and the rear element of the old queue becomes the top element of the new stack. The output should be similar to the image.arrow_forwardQuestion 1 If N represents the number of elements in the collection, then the add method of the SortedArrayCollection class is O(N). True False Question 2 If N represents the number of elements in the list, then the index-based remove method of the ABList class is O(N). True False Question 3 The add method of our Collection ADT might throw the CollectionOverflowException. True False Question 4 A list allows retrieval of information based on the size of the information. True False Question 5 Our CollectionInterface defines a single constructor. True False Question 6 Our lists allow null elements. True False Question 7 Even though our collections will be generic, our CollectionInterface is not generic. True False Question 8 Our lists are unbounded. True False Question 9 If N represents the number of elements in the collection, then the contains method of the ArrayCollection class is O(N). True False Question 10 Our lists allow duplicate elements. True Falsearrow_forward9 T OR F Depending on the circumstances, the dequeue method of our LinkedQueue class sometimes throws the QueueUnderflowException.arrow_forward
- To Do: LinkedList.h: add a new Node* called tailPtr which points to the last item in the list @file ListInterface.h */ #ifndef _LIST_INTERFACE#define _LIST_INTERFACE template<class ItemType>class ListInterface{public: /** Sees whether this list is empty. @return True if the list is empty; otherwise returns false. */ virtual bool isEmpty() const = 0; /** Gets the current number of entries in this list. @return The integer number of entries currently in the list. */ virtual int getLength() const = 0; /** Inserts an entry into this list at a given position. @pre None. @post If 1 <= position <= getLength() + 1 and the insertion is successful, newEntry is at the given position in the list, other entries are renumbered accordingly, and the returned value is true. @param newPosition The list position at which to insert newEntry. @param newEntry The entry to insert into the list. @return True if insertion is successful,…arrow_forwardin java, The following is a class definition of a linked list Node:class Node{int info;Node next;}Assume that Node's constructor receives no parameters. For each line of the code below, explain what memory is being allocated by JVM (Java Virtual Machine). int counter = 0; double dd; String str = “New Label”; Node myNode; myNode = new Node();arrow_forwardlinked_list_stack_shopping_list_manager.py This is a file that includes the class of linked list based shopping list manager. This class contains such methods as init, insert_item, is_list_empty, print_item_recursive_from_top, print_items_from_top, print_item_recursive_from_bottom, print_items_from_bottom, getLastItem, removeLastItem. In addition, this class requires the inner class to hold onto data as a linked list based on Stack. DO NOT use standard python library, such as deque from the collections module. Please keep in mind the following notes for each method during implementation: Init(): initializes linked list based on Stack object to be used throughout object life. insert_item(item): inserts item at the front of the linked list based on Stack. Parameters: item name. is_list_empty (): checks if the current Stack object is empty (ex. check if head is None). print_item_recursive_from_top(currentNode): a helper method to print linked list based on Stack item recursively. Note:…arrow_forward
- 19Given that values is of type LLNode<Integer> and references a linked list (non-empty) of Integer objects, what does the following code do if invoked as mystery(values)? int mystery(LLNode<Integer> list){ if (list.getLink() == null) return list.getInfo(); else return mystery(list.getLink());} Group of answer choices returns 0. returns sum of the numbers on the values list. returns how many numbers are on the values list. returns the last number on the values list. None of these is correct.arrow_forwardAssume that the linked list class is ready and called (MyLinkedList) that contains nodes with int data, and next reference. Assume also that MyLinkedList contains only the following methods: addFirst(), addLast(), removeFirst(), removeLast(). Given that numbers are represented in linked lists (i.e. the number 567 will be represented in a linked list of three nodes; the first node contains 5, the second node contains 6 and the last node contains 7. Write a java method that receives the heads of two linked lists representing two numbers and finds the product (result of multiplication) list and returns its head. Note: You are free to use only one additional stack in your solution.arrow_forwardGiven main() in the ShoppingList class, define an insertAtEnd() method in the ItemNode class that adds an element to the end of a linked list. DO NOT print the dummy head node. Ex. if the input is: 4 Kale Lettuce Carrots Peanuts where 4 is the number of items to be inserted; Kale, Lettuce, Carrots, Peanuts are the names of the items to be added at the end of the list. The output is: Kale Lettuce Carrots Peanuts public class ItemNode { private String item; private ItemNode nextNodeRef; // Reference to the next node public ItemNode() { item = ""; nextNodeRef = null; } // Constructor public ItemNode(String itemInit) { this.item = itemInit; this.nextNodeRef = null; } // Constructor public ItemNode(String itemInit, ItemNode nextLoc) {…arrow_forward
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