When is it appropriate to use blank final variables?

Question

I was looking at another question about final variables and noticed that you can declare final variables without initializing them (a blank final variable). Is there a reaso

Answer 1

I find them very useful for methods that derive a state. It provides a clean execution path and makes sure the state variable is assigned once and only once. For example:

public boolean isEdible() {
    final boolean edible;

    if (vegetable) {
        edible = true;
    } else if (animal) {
        if (vegetarian) {
            edible = false;
        } else {
            edible = true;
        } 
    }
    System.out.println("Is edible: " + edible);
    return edible;
}