Enums and Constants. Which to use when?

Question

I was doing some reading on enums and find them very similar to declaring constants. How would I know when to use a constant rather than an enum or vice versa. What are some

Answer 1

A constant is a language feature which says that the variable won't change value (so the compiler can do optimisations around that knowledge) where an enum is a specific type.

Constants can be any data type but an enum is an enum.

I use an enum any place where you could have a number of options and want to improve readability of the code. i.e. you could have trace levels as an int with values 0, 1, 2 or as an enum as error, warning and info.

Enum's also have the ability to be used as bitwise operators, i.e. FontStyle.Bold | FontStyle.Italic would give you bold and italic fonts.