#include using namespace std; struct Employee { string firstName; string lastName; int numOfHours; float hourlyRate; char major[2]; float amount; Employee* next; }; void printRecord(Employee* e) { cout << left << setw(10) << e->lastName << setw(10) << e->firstName << setw(12) << e->numOfHours << setw(12) << e->hourlyRate << setw(10) << e->amount << setw(9) << e->major[0]<< setw(7) << e->major[1]<next != nullptr) { current = current->next; } current->next = newNode; } } void displayLinkedList(Employee* head) { Employee* current = head; if(current!=nullptr){ cout << left << setw(10) << "LastName "<< setw(10) << "FirstName " << setw(12)<<"# of Hours"<< setw(12) <<"Hourly Rate "<< setw(10) << "Amount" << setw(9) << "Comp Sci"<< setw(7) << "Comp Sec" << endl; } while (current != nullptr) { printRecord(current); current = current->next; } void updateData(Employee* head) { Employee* current = head; while (current != nullptr) { transform(current->firstName.begin(), current->firstName.end(), current->firstName.begin(), ::toupper); transform(current->lastName.begin(), current->lastName.end(), current->lastName.begin(), ::toupper); if (current->major[0] == 'Y') { current->amount += 1000; } if (current->major[1] == 'Y') { current->amount += 1000; } current = current->next; } } void insertNode(Employee*& head, Employee* newNode) { if (head == nullptr || head->amount > newNode->amount) { newNode->next = head; head = newNode; } else { Employee* current = head; while (current->next != nullptr && current->next->amount < newNode->amount) { current = current->next; } newNode->next = current->next; current->next = newNode; } } int main() { Employee* head = nullptr; Employee* newNode; ifstream infile("LinkedList.txt"); if (!infile) { cerr << "Error: Input file could not be opened." << endl; return 1; } string line; while (getline(infile, line)) { istringstream iss(line); newNode = new Employee; iss >> newNode->firstName >> newNode->lastName >> newNode->numOfHours >> newNode->hourlyRate; string major1, major2; iss >> major1 >> major2; newNode->major[0] = major1[0]; newNode->major[1] = major2[0]; newNode->amount = newNode->numOfHours * newNode->hourlyRate; newNode->next = nullptr; appendNode(head, newNode); } infile.close(); updateData(head); char choice; do { cout << "\nMenu:\n"; cout << "a. Create a linked list\n"; cout << "b. Update data of the linked list\n"; cout << "c. Insert a new node to the linked list\n"; cout << "d. Delete a new node to the linked list\n"; cout << "e. Display linked list\n"; cout << "f. Exit\n"; cout << "Enter your choice: "; cin >> choice; switch (choice) { case 'a': break; case 'b': updateData(head); break; case 'c': { Employee* newNode = new Employee; insertNode(head, newNode); break; } } LinkedList.txt below John Wills 45 18.0 N Y Hank Tom 20 12.0 Y Y Willam Osman 42 21.0 Y N Nick Miller 20 20.0 Y N Jeff Schitte 33 25.0 N N John King 20 32.0 Y N

#include using namespace std; struct Employee { string firstName; string lastName; int numOfHours; float hourlyRate; char major[2]; float amount; Employee* next; }; void printRecord(Employee* e) { cout << left << setw(10) << e->lastName << setw(10) << e->firstName << setw(12) << e->numOfHours << setw(12) << e->hourlyRate << setw(10) << e->amount << setw(9) << e->major[0]<< setw(7) << e->major[1]<next != nullptr) { current = current->next; } current->next = newNode; } } void displayLinkedList(Employee* head) { Employee* current = head; if(current!=nullptr){ cout << left << setw(10) << "LastName "<< setw(10) << "FirstName " << setw(12)<<"# of Hours"<< setw(12) <<"Hourly Rate "<< setw(10) << "Amount" << setw(9) << "Comp Sci"<< setw(7) << "Comp Sec" << endl; } while (current != nullptr) { printRecord(current); current = current->next; } void updateData(Employee* head) { Employee* current = head; while (current != nullptr) { transform(current->firstName.begin(), current->firstName.end(), current->firstName.begin(), ::toupper); transform(current->lastName.begin(), current->lastName.end(), current->lastName.begin(), ::toupper); if (current->major[0] == 'Y') { current->amount += 1000; } if (current->major[1] == 'Y') { current->amount += 1000; } current = current->next; } } void insertNode(Employee& head, Employee newNode) { if (head == nullptr || head->amount > newNode->amount) { newNode->next = head; head = newNode; } else { Employee* current = head; while (current->next != nullptr && current->next->amount < newNode->amount) { current = current->next; } newNode->next = current->next; current->next = newNode; } } int main() { Employee* head = nullptr; Employee* newNode; ifstream infile("LinkedList.txt"); if (!infile) { cerr << "Error: Input file could not be opened." << endl; return 1; } string line; while (getline(infile, line)) { istringstream iss(line); newNode = new Employee; iss >> newNode->firstName >> newNode->lastName >> newNode->numOfHours >> newNode->hourlyRate; string major1, major2; iss >> major1 >> major2; newNode->major[0] = major1[0]; newNode->major[1] = major2[0]; newNode->amount = newNode->numOfHours * newNode->hourlyRate; newNode->next = nullptr; appendNode(head, newNode); } infile.close(); updateData(head); char choice; do { cout << "\nMenu:\n"; cout << "a. Create a linked list\n"; cout << "b. Update data of the linked list\n"; cout << "c. Insert a new node to the linked list\n"; cout << "d. Delete a new node to the linked list\n"; cout << "e. Display linked list\n"; cout << "f. Exit\n"; cout << "Enter your choice: "; cin >> choice; switch (choice) { case 'a': break; case 'b': updateData(head); break; case 'c': { Employee* newNode = new Employee; insertNode(head, newNode); break; } } LinkedList.txt below John Wills 45 18.0 N Y Hank Tom 20 12.0 Y Y Willam Osman 42 21.0 Y N Nick Miller 20 20.0 Y N Jeff Schitte 33 25.0 N N John King 20 32.0 Y N

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

Related questions

Question

#include <bits/stdc++.h>

using namespace std;

struct Employee {

string firstName;

string lastName;

int numOfHours;

float hourlyRate;

char major[2];

float amount;

Employee* next;

};

void printRecord(Employee* e) {

cout << left << setw(10) << e->lastName << setw(10) << e->firstName << setw(12)

<< e->numOfHours << setw(12) << e->hourlyRate << setw(10) << e->amount

<< setw(9) << e->major[0]<< setw(7) << e->major[1]<<endl;

}

void appendNode(Employee*& head, Employee* newNode) {

if (head == nullptr) {

head = newNode;

} else {

Employee* current = head;

while (current->next != nullptr) {

current = current->next;

}

current->next = newNode;

}

void displayLinkedList(Employee* head) {

Employee* current = head;

if(current!=nullptr){

cout << left << setw(10) << "LastName "<< setw(10) << "FirstName "

<< setw(12)<<"# of Hours"<< setw(12) <<"Hourly Rate "<< setw(10)

<< "Amount"

<< setw(9) << "Comp Sci"<< setw(7) << "Comp Sec" << endl;

}

while (current != nullptr) {

printRecord(current);

current = current->next;

}

void updateData(Employee* head) {

Employee* current = head;

while (current != nullptr) {

transform(current->firstName.begin(), current->firstName.end(), current->firstName.begin(), ::toupper);

transform(current->lastName.begin(), current->lastName.end(), current->lastName.begin(), ::toupper);

if (current->major[0] == 'Y') {

current->amount += 1000;

}

if (current->major[1] == 'Y') {

current->amount += 1000;

}

current = current->next;

}

void insertNode(Employee*& head, Employee* newNode) {

if (head == nullptr || head->amount > newNode->amount) {

newNode->next = head;

head = newNode;

} else {

Employee* current = head;

while (current->next != nullptr && current->next->amount < newNode->amount) {

current = current->next;

}

newNode->next = current->next;

current->next = newNode;

}

int main() {

Employee* head = nullptr;

Employee* newNode;

ifstream infile("LinkedList.txt");

if (!infile) {

cerr << "Error: Input file could not be opened." << endl;

return 1;

}

string line;

while (getline(infile, line)) {

istringstream iss(line);

newNode = new Employee;

iss >> newNode->firstName >> newNode->lastName >> newNode->numOfHours >> newNode->hourlyRate;

string major1, major2;

iss >> major1 >> major2;

newNode->major[0] = major1[0];

newNode->major[1] = major2[0];

newNode->amount = newNode->numOfHours * newNode->hourlyRate;

newNode->next = nullptr;

appendNode(head, newNode);

}

infile.close();

updateData(head);

char choice;

do {

cout << "\nMenu:\n";

cout << "a. Create a linked list\n";

cout << "b. Update data of the linked list\n";

cout << "c. Insert a new node to the linked list\n";

cout << "d. Delete a new node to the linked list\n";

cout << "e. Display linked list\n";

cout << "f. Exit\n";

cout << "Enter your choice: ";

cin >> choice;

switch (choice) {

case 'a':

break;

case 'b':

updateData(head);

break;

case 'c': {

Employee* newNode = new Employee;

insertNode(head, newNode);

break;

}

LinkedList.txt below

John Wills 45 18.0 N Y
Hank Tom 20 12.0 Y Y
Willam Osman 42 21.0 Y N
Nick Miller 20 20.0 Y N
Jeff Schitte 33 25.0 N N
John King 20 32.0 Y N

modify it based on the Instructions below:
-clicking a to add the amount (which shouldn't be displayed before pressing a, it should just
have the info),
-clicking b which will modify only the last name to uppercase (the first and last name are already
uppercase before I press b which shouldn't be happening, and 'b' is used for another feature not
just changing it to uppercase) maybe use an if statement and ask the user if they want to
change it to uppercase for the first or last name, or
-increase the hourly rate by 10 for comp sci majors, but keep the adding 1000 for comp
sci and cyber security majors (2000 for both)
-clicking b should also add 10 to the hourly rate for computer science majors when updating
data so if you could implement that, please
-the last thing is when clicking c, you should be able to insert a new node to the sequence with
the amount calculated and display it, make it so the user can enter In the new node and have it
displayed. Ask the user how many they want to input, then make a loop to have them insert the
new nodes and user input.
please do it in a timely manner

Expert Solution

Step by step

Solved in 4 steps with 9 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.