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


var dog, Dog: string
(dog, Dog, DOG) = ("Benjamin", "Samba", "Bernie")
 
if dog == Dog:
  if dog == DOG:
    echo "There is only one dog, ", DOG)
  else:
    echo "There are two dogs: ", dog, " and ", DOG
elif Dog == DOG :
  echo "There are two dogs: ", dog, " and ", DOG
else:
  echo "There are three dogs:  ", dog, ", ", Dog, " and ", DOG