4.2. Cycle through names

4.2.1. Add parrots

First, add an array of names for each parrot:

public static void main () {
    string[] parrot_names = {"Jurg", "Raffaele", "Dani"};

    print ("Enter your phrase: ");

    string input = stdin.read_line ();

    if (input != null) {
        print ("Your phrase: %s\n", input);
    }
}

Now let’s use the for loop to make each parrot repeat the entered phrase.

public static void main () {
    string[] parrot_names = {"Jurg", "Raffaele", "Dani"};

    print ("Enter your phrase: ");

    string input = stdin.read_line ();

    if (input == null) {
        return;
    }

    for (int i = 0; i < parrot_names.length; i++) {
        print (@"$(parrot_names[i]) says: $input\n");
    }
}

Note

Template strings were used inside the for loop

Template strings allow you to print variable values in-line in a string. We’ll cover these in more detail in a later section.

After compilng this program, for the input “It is what it is”, the following output will be displayed:

Jurg says: It is what it is
Raffaele says: It is what it is
Dani says: It is what it is

4.2.2. Refactoring

The program will always loop through every parrot name. Because of this, we can replace the for loop block with a simpler foreach loop block:

public static void main () {
    string[] parrot_names = {"Jurg", "Raffaele", "Dani"};

    print ("Enter your phrase: ");

    string input = stdin.read_line ();

    if (input == null) {
        return;
    }

    foreach (string name in parrot_names) {
        print (@"$name says: $input\n");
    }
}

Now if you compile and run this program again, you should it should work exactly the same.

This process of improving the program’s code is called refactoring.

4.2.3. Summary

Congratualations! You’ve now finished this chapter.

To recap, you’ve learned:

• Thing 1

• Thing 2

• Thing 3

– INSERT CHAPTER END MESSAGE HERE –

Now, on to the next chapter!