Is it a good practice to write an enum as a class file in java?

Question

I am constructing an enum Flower which contains the fixed set of constants for Flowers as described below. I'm writing it in a separate file and importing it to other classes so that it could be used across my project.

Is it a good practice to write an enum in a separate file in Java. Can someone give me some advice on this.

public enum Flower {

    Jasmine(1),
    Lotus(2),
    Lilly(3),
    Sunflower(4),
    Tulip(5),
    Daria(6);

    private int flowerValue;

    public Flower(int value) {
         this.flowerValue = value;
    }

    public int getFlowerValue() {
         return this.flowerValue;
    }

    public String getFlowerName() {
         return this.name();
    }
}

Answer 1

Yes, it absolutely is. Its the same as with usual classes and polymorphism:

// this code in approx. 100 places

int flowerValue;
switch(flower) {
    case Flower.Jasmine: flowerValue = 1; break;
    case Flower.Lotus:   flowerValue = 2; break;
    ...
    case Flower.Daria:   flowerValue = 6; break;
}

// good luck adding a new flower...

versus

// this code in approx. 100 places
int flowerValue = flower.getFlowerValue()

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In this particular case it seems as if flower.ordinal() would work just as well.