Using cout for output in C++ - Mini Project: Build & Apply

Using cout for output

📖 Scenario: You are learning how to display messages on the screen using C++.Imagine you want to greet someone by showing a message.

🎯 Goal: Build a simple C++ program that uses cout to print a greeting message.

📋 What You'll Learn

Create a string variable with a greeting message

Use cout to display the greeting message

Include the necessary header and namespace for cout

💡 Why This Matters

🌍 Real World

Displaying messages is the first step in making interactive programs like games, calculators, or chat apps.

💼 Career

Knowing how to output text is essential for debugging and communicating with users in software development.

1

Create a string variable with the greeting message

Create a string variable called greeting and set it to "Hello, friend!"

C++

#include 
#include 
using namespace std;

int main() {
    // Create a string variable called greeting and set it to "Hello, friend!"
    // Your code here

    return 0;
}

Need a hint?

Use string greeting = "Hello, friend!"; inside main().

2

Add the cout statement to display the greeting

Use cout to print the variable greeting followed by endl

C++

#include 
#include 
using namespace std;

int main() {
    string greeting = "Hello, friend!";
    // Use cout to print greeting followed by endl
    // Your code here

    return 0;
}

Need a hint?

Write cout << greeting << endl; to show the message.

3

Add a second message using cout

Use cout to print the exact text "Welcome to C++ programming!" followed by endl

C++

#include 
#include 
using namespace std;

int main() {
    string greeting = "Hello, friend!";
    cout << greeting << endl;
    // Print "Welcome to C++ programming!" using cout followed by endl
    // Your code here

    return 0;
}

Need a hint?

Write cout << "Welcome to C++ programming!" << endl; below the first cout.

4

Print both messages to the screen

Run the program so it prints both messages exactly as shown:

Hello, friend!
Welcome to C++ programming!

C++

#include 
#include 
using namespace std;

int main() {
    string greeting = "Hello, friend!";
    cout << greeting << endl;
    cout << "Welcome to C++ programming!" << endl;

    // Print the messages
    // Your code here

    return 0;
}

Need a hint?

Make sure your program prints both lines exactly.