
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
// This program calculates your age in the year 2050.
// Input: None
// Output: Your current age followed by your age in 2050
#include <iostream>
using namespace std;
int main()
{ myNewAge;
myCurrentAge;
// Declare and initialize your variables here
myNewAge = myCurrentAge + (2050 - currentYear);
cout << "My Current Age is " << myCurrentAge << endl;
cout << "I will be" << myNewAge << " in 2050." << endl;
return 0;
}

Transcribed Image Text:ng.cengage.com/static/nb/ui/evo/index.html?elSBN=97813372746098snapshotld%3D22228148id%3D107.
CENGAGE MINDTAP
Declaring and Initializing C++ Variables
Declaring and Initializing C++
NewAge.cpp
Variables
1// This progr.
pols
2 // Input: Nor
3// Output: You
Summary
5 #include ciost
</>
In this lab, you declare and initialize variables in a C++
6 using namespac
7 int main()
program. The program, which is saved in a file named
8 {myNewAge;
NewAge.cpp, calculates your age in the year 2050.
9 myCurrentAge;
10
Instructions
11
// Declare
12
1. Declare an integer variable named myNewAge.
13
14
myNewAge
2. Declare and initialize an integer variable named
15
16
cout <<My
nyCurrentAge . Initialize this variable with your
17
cout << I w
current age.
18
19
return 0;
3. Declare and initialize an integer variable named
20 }
currentYear. Initialize this variable with the value of
21
the current year. Use four digits for the year.
4. Execute the program by clicking the Run button at
the bottom of the screen.
Sample program execution:
My Current Age is 29.
I will be 65 in 2050.
Grading
When you have completed your program, click the
Submit button to record your score.
(7
!!
Expert Solution

arrow_forward
Step 1: Understanding the problem
Declaring data type in C++
When the variables in the example above are declared, they have an undetermined or garbage value until they are assigned a value for the first time. But it is possible for a variable to have a specific value from the moment it is declared. This is called the initialization of the variable.
In C++, there are same ways to initialize variables as in C Language.
Syntax:
type identifier = initial_value;
Example:
int a = 10; //integer variable declaration & initialization.
Trending nowThis is a popular solution!
Step by stepSolved in 3 steps with 1 images

Follow-up Questions
Read through expert solutions to related follow-up questions below.
Follow-up Question
In this lab, you declare and initialize constants in a Java program. The program file named NewAge2.Java. Calculate your age in the year 2050
Solution
by Bartleby Expert
Follow-up Questions
Read through expert solutions to related follow-up questions below.
Follow-up Question
In this lab, you declare and initialize constants in a Java program. The program file named NewAge2.Java. Calculate your age in the year 2050
Solution
by Bartleby Expert
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
- #include <iostream> #include <string> using namespace std; int main() { // Declare and initialize variables. string employeeFirstName; string employeeLastName; double employeeSalary; int employeeRating; double employeeBonus; const double BONUS_1 = .25; const double BONUS_2 = .15; const double BONUS_3 = .10; const double NO_BONUS = 0.00; const int RATING_1 = 1; const int RATING_2 = 2; const int RATING_3 = 3; // This is the work done in the housekeeping() function // Get user input cout << "Enter employee's first name: "; cin >> employeeFirstName; cout << "Enter employee's last name: "; cin >> employeeLastName; cout << "Enter employee's yearly salary: "; cin >> employeeSalary; cout << "Enter employee's performance rating: "; cin >> employeeRating; // This is the work done in the detailLoop() function // Use switch statement to…arrow_forward#include <iostream> #include <iomanip> #include <string> using namespace std; int main() { constdouble MONSTERA_PRICE =11.50; constdouble PHILODENDRON_PRICE =13.75; constdouble HOYA_PRICE =10.99; constint MAX_POTS =20; constdouble POINTS_PER_DOLLAR =1.0/0.75; char plantType; int quantity; double totalAmount =0.0; int totalPoints =0; int availablePots =0; double plantPrice =0.0; cout << "Welcome to Tom's Plant Shop!" << endl; cout << "******************************" << endl; cout << "Enter your full name: "; string fullName; getline(cin, fullName); output: compiling code... Welcome to Tom's Plant Shop!----------------------------------------Enter your full name: ______ Available plants:M - Monstera ($ 11.5)P - Philodendron ($13.75)H - Hoya ($10.99)Q - Quit shoppingEnter the plant type (M/P/H/Q): ________ Part 1 Tom has recently started a plant-selling business, and he offers three different types of plants, namely Monstera,…arrow_forward// EmployeeBonus2.cpp - This program calculates an employee's yearly bonus. #include <iostream> #include <string> using namespace std; int main() { // Declare and initialize variables. string employeeFirstName; string employeeLastName; double employeeSalary; int employeeRating; double employeeBonus; const double BONUS_1 = .25; const double BONUS_2 = .15; const double BONUS_3 = .10; const double NO_BONUS = 0.00; const int RATING_1 = 1; const int RATING_2 = 2; const int RATING_3 = 3; // This is the work done in the housekeeping() function // Get user input cout << "Enter employee's first name: "; cin >> employeeFirstName; cout << "Enter employee's last name: "; cin >> employeeLastName; cout << "Enter employee's yearly salary: "; cin >> employeeSalary; cout << "Enter employee's performance rating: "; cin >> employeeRating; // This is…arrow_forward
- #include <iostream> #include <cmath> using namespace std; // declare functions void display_menu(); void convert_temp(); double to_celsius(double fahrenheit); double to_fahrenheit(double celsius); int main() { cout << "Convert Temperatures\n\n"; display_menu(); char again = 'y'; while (again == 'y') { convert_temp(); cout << "Convert another temperature? (y/n): "; cin >> again; cout << endl; } cout << "Bye!\n"; } // define functions void display_menu() { cout << "MENU\n" << "1. Fahrenheit to Celsius\n" << "2. Celsius to Fahrenheit\n\n"; } void convert_temp() { int option; cout << "Enter a menu option: "; cin >> option; double f = 0.0; double c = 0.0; switch (option) { case 1: cout << "Enter degrees Fahrenheit: "; cin >> f; c =…arrow_forwardC++arrow_forward#include <iostream>using namespace std; double average(int sum_of_grades,int num_grades){return sum_of_grades/(float)num_grades;} int main() {int num_grades,grade,sum=0;char grade_value;cout<<"Enter the number of grades"<<endl;cin>>num_grades;for(int i=0;i<num_grades;i++){cout<<"Enter a numeric grade between 0-100"<<endl;cin>>grade;sum+=grade;}double avg=average(sum,num_grades);if(avg>=90 && avg<=100)grade_value='A';else if(avg>=80 && avg<=89)grade_value='B';else if(avg>=70 && avg<=79)grade_value='C';else if(avg>=60 && avg<=69)grade_value='D';else if(avg>=0 && avg<=59)grade_value='F';cout<<"The grade is "<<grade_value;} review if the written c++ code is correct then organize the code and write comments for each part of the program explaining what they do.arrow_forward
- program Credit Card Validator - Takes in a credit card number from a common credit card vendor (Visa, MasterCard, American Express, Discover) and validates it to make sure that it is a valid number (look into how credit cards use a checksum). please use #include <iostream>arrow_forwardmain.cc file #include #include #include #include "cup.h" int main() { std::string drink_name; double amount = 0.0; std::cout << "What kind of drink can I get you?: "; std::getline(std::cin, drink_name); while (std::cout << "How much do you want to fill?: " && !(std::cin >> amount)) { // If the input is invalid, clear it, and ask again std::cin.clear(); std::cin.ignore(); std::cout << "Invalid input; please re-enter.\n"; } //================== YOUR CODE HERE ================== // Instantiate a `Cup` object named `mug`, with // the drink_name and amount given by the user above. //==================================================== while (true) { char menu_input = 'X'; std::cout << "\n=== Your cup currently has " << mug.GetFluidOz() << " oz. of " << mug.GetDrinkType() << " === \n\n"; std::cout << "Please select what you want to do with…arrow_forward// LargeSmall.cpp - This program calculates the largest and smallest of three integer values. #include <iostream> using namespace std; int main() { // This is the work done in the housekeeping() function // Declare and initialize variables here int largest; // Largest of the three values int smallest; // Smallest of the three values // Prompt the user to enter 3 integer values // Write assignment, add conditional statements here as appropriate // This is the work done in the endOfJob() function // Output largest and smallest number. cout << "The largest value is " << largest << endl; cout << "The smallest value is " << smallest << endl; return 0; }arrow_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_forwardcout<<"Team name is is "< cout<<"The team got "<<no for (int i=0;i<no_of_medal cout<<medals[i]<< cout<<endl; Sport_team::~Sport_team() { delete []medals; cout<<"Memory free"<<endl } void f(Sport_team o) { cout<<"Team info print by o.print(); } void main() { Sport_team s; string n; int m; cout<<"Enter the sport's cin >>n ; cout<<"Enter number of me cin>>m; . set(n, m) ; s.print(); f(s) ; s.print();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