Understanding Enums in Java

Question

What are java enums? How do they work? Where could I used them and how?
Can I do without using enums in an app or are they so powerful that Its better to use them than i

Answer 1

From my interpretation, enums are more for readability than anything else. They are basically used to replace values like 1-6 with more descriptive names, like [Happy, Sad, Angry, etc] You should use them whenever you need to use a small set of variables to describe the solution that you are expecting.