Ruby variables and Methods

Def say_goodnight (name) Result = "Good night. "+ name return resultenddef say_goodmorning (name) Result =" Good morning. # {name} "Return resultenddef say_goodafternoon (name) Result =" good afternoon. # {name} "endputs say_goodnight (" Jake ") puts say_goodmorning (" heidsoft ") puts say_goodafternoon (" heidcloud ")

Local variables, method parameters, and method names must start with lowercase letters and underscores
Global variable, prefixed with ($)
Instance variable, starting with the (@) symbol
Class variable, starting with the @ symbol
The class name, Module name, and constant must start with an uppercase letter.