
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Write an if-else statement that prints "Goodbye" if userString is "Quit", else prints "Hello". End with newline.
#include <iostream>
#include <string>
using namespace std;
int main() {
string userString;
cin >> userString;
/* Your solution goes here */
return 0;
}
Expert Solution

This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution
Trending nowThis is a popular solution!
Step by stepSolved in 3 steps with 2 images

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.Similar questions
- C++ PLEASE!! // FILE: simplestring.h// CLASS PROVIDED: string (a sequence of characters)//// CONSTRUCTOR for the string class:// string(const char str[ ] = "") -- default argument is the empty string.// Precondition: str is an ordinary null-terminated string.// Postcondition: The string contains the sequence of chars from str.//// CONSTANT MEMBER FUNCTIONS for the string class:// size_t length( ) const// Postcondition: The return value is the number of characters in the// string.//// char operator [ ](size_t position) const// Precondition: position < length( ).// Postcondition: The value returned is the character at the specified// position of the string. A string's positions start from 0 at the start// of the sequence and go up to length( )-1 at the right end.//// MODIFICATION MEMBER FUNCTIONS for the string class:// void operator +=(const string& addend)// Postcondition: addend has been catenated to the end of the string.//// void operator +=(const char addend[ ])//…arrow_forwardI have this code now. #include <iostream> #include <string> #include <fstream> using namespace std; string mixColors(int color1, int color2) { string mixedColor; if ((color1 == 0 && color2 == 1) || (color1 == 1 && color2 == 0)) { mixedColor = "purple"; } else if ((color1 == 0 && color2 == 2) || (color1 == 2 && color2 == 0)) { mixedColor = "orange"; } else if ((color1 == 1 && color2 == 2) || (color1 == 2 && color2 == 1)) { mixedColor = "green"; } else { mixedColor = "No Mix"; } return mixedColor; } //reads colors from a file int getUserInput(ifstream& inFile) { int color; inFile >> color; return color; } void writeOutputToFile(ofstream& outFile, int color1, int color2, const string & mixedColor){ outFile << "Mixed color selected (" << color1 << " and " << color2…arrow_forward#include <iostream>#include <sstream>#include <string>using namespace std; int main() { string userItem; ostringstream itemsOSS; cout << "Enter items (type Exit to quit):" << endl; cin >> userItem; while (userItem != "Exit") { cin >> userItem; } cout << itemsOSS.str() << endl; return 0;}arrow_forward
- please use DEQUE #include <iostream>#include <string>#include <deque> using namespace std; const int AIRPORT_COUNT = 12;string airports[AIRPORT_COUNT] = {"DAL","ABQ","DEN","MSY","HOU","SAT","CRP","MID","OKC","OMA","MDW","TUL"}; int main(){// define stack (or queue ) herestring origin;string dest;string citypair;cout << "Loading the CONTAINER ..." << endl;// LOAD THE STACK ( or queue) HERE// Create all the possible Airport combinations that could exist from the list provided.// i.e DALABQ, DALDEN, ...., ABQDAL, ABQDEN ...// DO NOT Load SameSame - DALDAL, ABQABQ, etc .. cout << "Getting data from the CONTAINER ..." << endl;// Retrieve data from the STACK/QUEUE here } Using the attached shell program (AirportCombos.cpp), create a list of strings to process and place on a STL DEQUE container. Using the provided 3 char airport codes, create a 6 character string that is the origin & destination city pair. Create all the possible…arrow_forwardample code for the reader-writer: #include <pthread.h>#include <semaphore.h>#include <stdio.h> /*This program provides a possible solution for first readers writers problem using mutex and semaphore.I have used 10 readers and 5 producers to demonstrate the solution. You can always play with these values.*/ sem_t wrt;pthread_mutex_t mutex;int cnt = 1;int numreader = 0; void *writer(void *wno){ sem_wait(&wrt);cnt = cnt*2;printf("Writer %d modified cnt to %d\n",(*((int *)wno)),cnt);sem_post(&wrt); }void *reader(void *rno){ // Reader acquire the lock before modifying numreaderpthread_mutex_lock(&mutex);numreader++;if(numreader == 1) {sem_wait(&wrt); // If this id the first reader, then it will block the writer}pthread_mutex_unlock(&mutex);// Reading Sectionprintf("Reader %d: read cnt as %d\n",*((int *)rno),cnt); // Reader acquire the lock before modifying numreaderpthread_mutex_lock(&mutex);numreader--;if(numreader == 0) {sem_post(&wrt); //…arrow_forwardIN C++ Write code that: creates 3 integer values - one can be set to 0, the other two should NOT multiples of one another (for example 3 and 6, or 2 and 8) take you largest value and perform a modulus operation using the smaller (non zero) value as the divisor print out the result. create an alias for the string type call the alias "name" then create an instance of the "name" class and assign it a value using an appropriate cout statement - print out the value Please screenshot your input and output, as the format tends to get messed up. Thank you!arrow_forward
- In C++, using STL algorithms, use the text file shoes.txt, where you want to sell a pair of shoes to a customer. The price must come from the text file, and can be used to get the total for any shoe the user may choose. CONSOLE cout << "what shoes do you want to buy"; cin >> heels; cout << " that will be " shoe_price "!"; The cout should return " That will be $20 ! shoes.txt items: heels $20 shoes $12 yeezys $289 jordans $150arrow_forward// Airline.cpp - This program determines if an airline passenger is // eligible for a 25% discount. #include <iostream> #include <string> using namespace std; int main() { string passengerFirstName = ""; // Passenger's first name string passengerLastName = ""; // Passenger's last name int passengerAge = 0; // Passenger's age // This is the work done in the housekeeping() function cout << "Enter passenger's first name: "; cin >> passengerFirstName; cout << "Enter passenger's last name: "; cin >> passengerLastName; cout << "Enter passenger's age: "; cin >> passengerAge; // This is the work done in the detailLoop() function // Test to see if this customer is eligible for a 25% discount // This is the work done in the endOfJob() function return 0; }arrow_forward
arrow_back_ios
arrow_forward_ios
Recommended textbooks for you
- Database System ConceptsComputer ScienceISBN:9780078022159Author:Abraham Silberschatz Professor, Henry F. Korth, S. SudarshanPublisher:McGraw-Hill EducationStarting Out with Python (4th Edition)Computer ScienceISBN:9780134444321Author:Tony GaddisPublisher:PEARSONDigital Fundamentals (11th Edition)Computer ScienceISBN:9780132737968Author:Thomas L. FloydPublisher:PEARSON
- C How to Program (8th Edition)Computer ScienceISBN:9780133976892Author:Paul J. Deitel, Harvey DeitelPublisher:PEARSONDatabase Systems: Design, Implementation, & Manag...Computer ScienceISBN:9781337627900Author:Carlos Coronel, Steven MorrisPublisher:Cengage LearningProgrammable Logic ControllersComputer ScienceISBN:9780073373843Author:Frank D. PetruzellaPublisher:McGraw-Hill Education

Database System Concepts
Computer Science
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:McGraw-Hill Education

Starting Out with Python (4th Edition)
Computer Science
ISBN:9780134444321
Author:Tony Gaddis
Publisher:PEARSON

Digital Fundamentals (11th Edition)
Computer Science
ISBN:9780132737968
Author:Thomas L. Floyd
Publisher:PEARSON

C How to Program (8th Edition)
Computer Science
ISBN:9780133976892
Author:Paul J. Deitel, Harvey Deitel
Publisher:PEARSON

Database Systems: Design, Implementation, & Manag...
Computer Science
ISBN:9781337627900
Author:Carlos Coronel, Steven Morris
Publisher:Cengage Learning

Programmable Logic Controllers
Computer Science
ISBN:9780073373843
Author:Frank D. Petruzella
Publisher:McGraw-Hill Education