Print Smileys: Code-Along

Create a program that will print some smiley faces based on a user's input. Start from a new C# Repl project named "Print Smileys" and follow the instructions below.

The code for the final program is available, but try to complete the exercise before checking the solution.

Part 1 - Defining the smiley face method

The smiley face method should print a certain number of smiley faces based on a parameter.

1. Define a new method named PrintSmiley in the main.cs file
   • The method should take in one int parameter (numSmileys)
   • The method should return void (nothing)
2. In the body of the PrintSmiley method, create a while loop
   • The while loop should execute numSmileys times
3. In the body of the while loop, print a smiley face (:))

public static void PrintSmileys(int numSmileys)
{
    int i = 0;
    while (i < numSmileys)
    {
        Console.WriteLine(":)");
        i++;
    }
}

Part 2 - User input

The main program should ask the user how many smileys to print. If they enter a number less than zero, the program should display an error message.

1. In the Main method, display a message asking the user how many smileys they would like
2. Convert their input into an int, and store it in a variable
3. Use an if statement to check if the number they entered is positive
   • If it is positive, call the PrintSmiley method with the number as an argument
   • If it is not positive, display a message saying "Please enter a positive number"

Console.WriteLine("How many smileys would you like?");
int num = Convert.ToInt32(Console.ReadLine());

if (num > 0)
{
    PrintSmileys(num);
}
else
{
    Console.WriteLine("Please enter a positive number");
}