State the types of scala identifiers?
In Scala, there are four types of identifiers :
Alphanumeric Identifiers : Alphanumeric Identifiers: These are the most commonly used identifiers in Scala, consisting of letters, digits, and underscores. They can start with a letter or an underscore but cannot start with a digit.
Operator Identifiers : These identifiers consist of one or more operator characters such as +, -, *, /, %, etc. They can be used as method names but must be surrounded by backticks (`).
Mixed Identifiers : These identifiers combine alphanumeric characters with operator characters. They must start with an operator character and must be surrounded by backticks.
Literal Identifiers : These identifiers consist of a single character, an underscore (_). They can be used as anonymous placeholders for unused parameters or values.
