Installation and Configuration
Programming Methodology

Vehicle Class Implementation with Start, Brake, and Drive Methods in C++

In this exercise, you will implement a simple C++ class to represent a vehicle. The class will include methods to simulate starting the engine, braking, and driving. By modeling these actions, you'll practice using class methods to simulate real-world behaviors. This example is excellent for beginners who want to deepen their understanding of object-oriented programming, method creation, and encapsulation. The program will allow the user to interact with the vehicle through method calls and display appropriate messages reflecting each action taken.

Group

Object-Oriented Programming in C++

Objective

1. Define a class named Vehicle with a boolean attribute to track whether the engine is on.
2. Implement a method to start the vehicle. If already started, display a message.
3. Implement a method to simulate braking by showing a message.
4. Implement a method to simulate driving. The vehicle must be started first to drive.
5. In the main function, create a Vehicle object and call its methods to demonstrate the behavior.

Implement a Vehicle class with methods to start, brake, and drive.

Example C++ Exercise

 Copy C++ Code 
#include <iostream>  // Include input-output stream library
using namespace std;

// Define the Vehicle class
class Vehicle {
private:
    bool engineOn;  // Boolean to track if the engine is started

public:
    // Constructor initializes the vehicle with the engine off
    Vehicle() {
        engineOn = false;
    }

    // Method to start the vehicle
    void start() {
        if (engineOn) {
            // If the engine is already on, notify the user
            cout << "The vehicle is already started." << endl;
        } else {
            // Start the engine
            engineOn = true;
            cout << "Vehicle started successfully." << endl;
        }
    }

    // Method to brake the vehicle
    void brake() {
        // Display a message to simulate braking
        cout << "Vehicle is braking." << endl;
    }

    // Method to drive the vehicle
    void drive() {
        if (engineOn) {
            // If the engine is on, simulate driving
            cout << "Vehicle is driving." << endl;
        } else {
            // If the engine is off, notify the user
            cout << "Cannot drive. Please start the vehicle first." << endl;
        }
    }
};

int main() {
    // Create an object of the Vehicle class
    Vehicle car;

    // Attempt to drive before starting
    car.drive();

    // Start the vehicle
    car.start();

    // Attempt to start the vehicle again
    car.start();

    // Drive the vehicle
    car.drive();

    // Apply the brakes
    car.brake();

    return 0;  // End the program
}

 Output

Cannot drive. Please start the vehicle first.
Vehicle started successfully.
The vehicle is already started.
Vehicle is driving.
Vehicle is braking.

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