Real-world modeling in C++ - Mini Project: Build & Apply

Real-world modeling

📖 Scenario: You are creating a simple program to model a car's basic information and behavior. This will help you understand how to represent real-world objects in code using variables and simple logic.

🎯 Goal: Build a C++ program that stores a car's make, model, and year, checks if the car is considered a classic (older than 25 years), and then prints the car's details along with whether it is a classic or not.

📋 What You'll Learn

Create variables to store the car's make, model, and year

Create a variable to store the current year

Use an if statement to check if the car is a classic (year older than current year minus 25)

Print the car's details and classic status

💡 Why This Matters

🌍 Real World

Modeling real-world objects like cars helps programmers organize data and logic clearly.

💼 Career

Understanding how to represent objects and their properties is key in software development, especially in fields like game development, simulations, and business applications.

1

Create variables for car details

Create three variables: make as a std::string with value "Toyota", model as a std::string with value "Corolla", and year as an int with value 1995.

C++

#include 
#include 

int main() {
    // Create variables for car details
    // Your code here

    return 0;
}

Need a hint?

Use std::string for text and int for numbers.

2

Add current year variable

Add an int variable called currentYear and set it to 2024.

C++

#include 
#include 

int main() {
    std::string make = "Toyota";
    std::string model = "Corolla";
    int year = 1995;

    // Add current year variable
    // Your code here

    return 0;
}

Need a hint?

Use int currentYear = 2024; to store the current year.

3

Check if the car is a classic

Create a bool variable called isClassic. Use an if statement to set isClassic to true if year is less than currentYear - 25, otherwise set it to false.

C++

#include 
#include 

int main() {
    std::string make = "Toyota";
    std::string model = "Corolla";
    int year = 1995;
    int currentYear = 2024;

    // Check if the car is a classic
    // Your code here

    return 0;
}

Need a hint?

Use an if statement to compare year with currentYear - 25.

4

Print car details and classic status

Use std::cout to print the car's make, model, and year in one line. Then print "Classic: Yes" if isClassic is true, otherwise print "Classic: No".

C++

#include 
#include 

int main() {
    std::string make = "Toyota";
    std::string model = "Corolla";
    int year = 1995;
    int currentYear = 2024;

    bool isClassic;
    if (year < currentYear - 25) {
        isClassic = true;
    } else {
        isClassic = false;
    }

    // Print car details and classic status
    // Your code here

    return 0;
}

Need a hint?

Use std::cout and if to print the details and classic status.