In HTTP, status codes are a machine-readable mechanism indicating the result of a previously issued request. From RFC 7231, sec. 6: "The status-code element is a three-digit integer code giving the result of the attempt to understand and satisfy the request."
The formal grammar allows codes to be anything between
999. However, only the range from
599 has assigned meaning.
Oracle official style guide for the Java Programming Language is a standard followed by developers at Oracle and recommended to be followed by any other Java developer. It covers filenames, file organization, indentation, comments, declarations, statements, white space, naming conventions, programming practices and includes a code example.