Identification is done with the help of identifiers in programming languages. The identifiers in Scala are case-sensitive and can be class, method, variable, or object name.
Example:
class Madanswer
{
var x: Int = 45
}
object Scaler
{
def main(args: Array[String])
{
var y = new Madanswer();
}
}
As you can see from the above example, we have six identifiers:
Madanswer: Class name
x: Variable name
Scaler: Object name
main: Method name
args: Variable name
y: Object name
Types of Identifiers
Alphanumeric Identifiers: These identifiers start with a letter (capital/small) or underscore, followed by a digit, letter, or underscore.
Example: myVal , _Scaler , etc.
Operator Identifiers: These identifiers contain one or more operator characters (such as +, :, ?, ~, or #, etc.).
Example: +, ++ , etc.
Mixed Identifiers: This type of identifier consists of an alphanumeric identifier followed by an underscore and the operator identifier.
Example: scaler_+ , myVal_= , etc.
Literal Identifiers: In these identifiers, an arbitrary string is enclosed with backticks (`….`).
Example: `Scaler` , etc.
