Three dogs (Are there three dogs or one dog?) is a code snippet used to illustrate the lettercase sensitivity of the programming language. For a case-sensitive language, the identifiers dog, Dog and DOG are all different and we should get the output:

The three dogs are named Benjamin, Samba and Bernie.

For a language that is lettercase insensitive, we get the following output:

There is just one dog named Bernie.



Related task

 Unicode variable names


program CaseSensitiveIdentifiers;
 
{$APPTYPE CONSOLE}
 
var
  dog: string;
begin
  dog := 'Benjamin';
  Dog := 'Samba';
  DOG := 'Bernie';
  Writeln('There is just one dog named ' + dog);
end.