Activity 1 - Output

We first need to enter a message for our program to be able to create secret messages.

Launch Replit

To do that we are going to start by telling the computer to show in console for whom is that message. This is the command that we will be using.

cout << "Hello Developer!" << endl;

Let’s learn more about this line of code, shall we?


Everything that we see wrapped in quotation marks ("") are called strings. A string is sequence of characters, numbers, letters or symbols.

In the line of code that we wrote before, "Hello Developer!" is a string. "123", "abc!" or "Hello" are also examples of strings. However, 123, abc! or Hello! are not strings since they are not wrapped between quotation marks.

To print to the console, we use cout. Every cout will be followed by <<, while endl that means we’ve reached end of the line. Anything wrapped by << will be printed to the console. In our case, if we hit Run, the string Hello Developer! will be printed to the console.

Copy the above line and paste it in the main.cpp file that we had at the beginning. Run the program and see what happens. Try changing the string to "Hello world!" or "For the queen".


If after clicking the Run button, an error message in red appears, it means that there is something wrong with your code. Please ask for help from your instructor.

You should also check for the following:

  1. Ensure the spelling, capitalization, and symbols used match with the example given.
  2. Make sure that you add a semicolon at the end of each line of code.