Naming Convention

Variable names

• Variable names must begin with a letter (a-z or A-Z), an underscore (_), or a currency character ($ or €).

• First character of a variable name cannot be a digit. It can start with currency or underscore also.

• Variable names are case-sensitive, meaning myVariable and MyVariable are considered different variables.

• Variable names cannot be a Java keyword or reserved word, such as int, class, public, etc