What is the purpose of enum?

The main objective of enum is to define our own data types (Enumerated Data Types). Declaration of enum in Java: Enum declaration can be done outside a Class or inside a Class but not inside a Method.24 Oca 2022

Enumeration or Enum in C is a special kind of data type defined by the user. It consists of constant integrals or integers that are given names by a user. The use of enum in C to name the integer values makes the entire program easy to learn, understand, and maintain by the same or even different programmer.

It is basically a data type that lets you describe each member of a type in a more readable and reliable way, for example, temperature level like High, Medium and Low. The main advantage of Enum is that it make your code more explicit, less error-prone and in a self-documenting way .