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 19, Problem 1FTE
Explanation of Solution
Purpose of the given code:
The given code is used to display the second element in a list “myList”. This list contains three elements.
Given code:
/* Set a reference "ref" to the first node in the list "myList" */
Node ref = myList; //Line 1
/* Increment the value of "ref" */
ref++;//Line 2
/* Display the element in the "ref" */
System.out.print(ref.value); //Line 3
Error in the given code:
- The error is present in “line 2” of given code. If user needs move on to the next node, then they should set a reference to the successor of the existing node. That is assign “ref” to “ref.next”.
- Therefore, user should replace “ref = ref.next” in the place of “ref++”...
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Students have asked these similar questions
struct nodeType {
int infoData;
nodeType * next;
};
nodeType *first;
… and containing the values(see image)
Using a loop to reach the end of the list, write a code segment that deletes all the nodes in the list. Ensure the code performs all memory ‘cleanup’ functions.
None
Multiple choice in data structures
void doo(node<int>*root){
if(root !=0) { node<int>*p=root;
while(root->next!=0) root=root->next;
p->data=root->data;
}
What is this code do?
a.
swap the first item with the last item in the linked list
b.
set the first item in the linked list as the last item
c.
doesn't do anything because the root parameter is passed by value
d.
change the root item in the binary tree with the farthest leaf item
Chapter 19 Solutions
Starting Out with Java: From Control Structures through Data Structures (4th Edition) (What's New in Computer Science)
Ch. 19.1 - Prob. 19.1CPCh. 19.1 - Prob. 19.2CPCh. 19.3 - Prob. 19.4CPCh. 19 - A list is a collection that _____. a. associates...Ch. 19 - Prob. 2MCCh. 19 - Prob. 3MCCh. 19 - Prob. 4MCCh. 19 - Prob. 5MCCh. 19 - Prob. 6MCCh. 19 - Prob. 7MC
Ch. 19 - Prob. 11TFCh. 19 - Prob. 12TFCh. 19 - Prob. 13TFCh. 19 - Prob. 14TFCh. 19 - Prob. 15TFCh. 19 - Prob. 16TFCh. 19 - Prob. 17TFCh. 19 - Prob. 18TFCh. 19 - Prob. 19TFCh. 19 - Prob. 20TFCh. 19 - Prob. 1FTECh. 19 - Prob. 2FTECh. 19 - Prob. 3FTECh. 19 - Prob. 4FTECh. 19 - Prob. 5FTECh. 19 - Prob. 1AWCh. 19 - Prob. 2AWCh. 19 - Prob. 3AWCh. 19 - Prob. 4AWCh. 19 - Prob. 3SACh. 19 - Prob. 4SACh. 19 - Prob. 5SACh. 19 - Consult the online Java documentation and...Ch. 19 - Prob. 1PCCh. 19 - Prob. 2PC
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- T/F: All Linked Lists must have head node.arrow_forwardstruct remove_from_front_of_dll { // Function takes no parameters, removes the book at the front of a doubly // linked list, and returns nothing. void operator()(const Book& unused) { //// TO-DO (13) |||| // Write the lines of code to remove the book at the front of "my_dll", // // Remember, attempting to remove an element from an empty data structure is // a logic error. Include code to avoid that. ///// END-TO-DO (13) //// } std::list& my_dll; };arrow_forwardstruct node{ int a; struct node * nextptr; }; Write two functions. One for inserting new values to a link list that uses the given node structure. void insert(struct node **head, int value); Second function is called to count the number of even numbers in the link list. It returns an integer that represents the number of even numbers. int countEvenNumbers(struct node *head); Write a C program that reads a number of integers from the user and insert those integers into a link list (use insert function). Later pass the head pointer of this link list to a function called countEvenNumbers. This function counts and returns the number of even numbers in the list. The returned value will be printed on the screen. Note 1: Do not modify the function prototypes. Sample Input1: Sample Output1: 45 23 44 12 37 98 33 35 -1 3 Sample Input2: Sample Output2: 11 33 44 21 22 99 123 122 124 77 -1 4arrow_forward
- It is a to the next node in the linked list, which is the property after it in the Node class.arrow_forwardOption+Explanationarrow_forwardOcaml Mode Write a function mode : ’a list -> ’a = that given a (nonempty) list it returns an element that repeats the most times (if ties exist, return the element among them that appears first in the list). examples mode [1;2;1;4;2;5;1;2;6];; - : int = 1 mode [’a’;’b’;’c’;’b’;’a’;’b’;’d’;’c’;’d’];; - : char = ’b’arrow_forward
- The following code inserts an element at the beginning of the list public void insertBegin(T e) Node temp new Node (e); head temp; temp. Next = head; size++; True Falsearrow_forwardcard_t * moveCardBack (card t *head); The moveCardBack function will take the card in front of the pile and place it in the back. In coding terms, you are taking the head of the linked list and moving it to the end. The function has one parameter which is the head of the linked list. After moving the card to the back, the function returns the new head of the linked list.arrow_forwardin cpp please AnyList.h #ifndef ANYLIST_H#define ANYLIST_H #include<iostream>#include <string> //Need to include for NULL class Node{public: Node() : data(0), ptrToNext(nullptr) {} Node(int theData, Node *newPtrToNext) : data(theData), ptrToNext(newPtrToNext){} Node* getPtrToNext() const { return ptrToNext; } int getData( ) const { return data; }void setData(int theData) { data = theData; } void setPtrToNext(Node *newPtrToNext) { ptrToNext = newPtrToNext; } ~Node(){}private:int data; Node *ptrToNext; //pointer that points to next node}; class AnyList{public: AnyList(); void insertFront(int); void print() const; void destroyList(); ~AnyList(); private: Node *ptrToFirst; //pointer to point to the first node in the list int count; //keeps track of number of nodes in the list}; #endif AnyList.cpp #include "AnyList.h" using namespace std; //constructorAnyList::AnyList(){ ptrToFirst = nullptr; count =…arrow_forward
- The definition of linked list is given as follows: struct Node { ElementType Element ; struct Node *Next ; } ; typedef struct Node *PtrToNode, *List, *Position; If L is head pointer of a linked list, then the data type of L should be ??arrow_forwardstruct insert_at_back_of_dll { // Function takes a constant Book as a parameter, inserts that book at the // back of a doubly linked list, and returns nothing. void operator()(const Book& book) { / // TO-DO (2) |||| // Write the lines of code to insert "book" at the back of "my_dll". // // // END-TO-DO (2) ||| } std::list& my_dll; };arrow_forwardInput code in the "Write code here" sectionsarrow_forward
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