What is the Case of Letter? (Upper/Lower/Camel/Snake/Hyphen)

Data System Architecture


The case of a letter refers to its representation.

The most known cases are:

  • upper case (ie UPPERCASE, LOWERCASE)
  • and lower case (ie lowercase, uppercase)

but there is more:

  • Camel Case: UserCount used in java code for instance
  • Snake Case: user_count used in properties for instance
  • Hyphen Case: user-count also known as kebab-case, lisp-case, etc.


They refer to the physical cases where printers kept their letters

Uppercase Lowercase

Where you can see a physical representation of letter frequency.

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