相关疑难解决方法(0)

我似乎无法从枚举中访问周围类的实例成员,因为我可以从内部类中访问.这是否意味着枚举是静态的？是否可以访问周围类的实例的范围,或者我是否必须将实例传递到我需要它的枚举方法中？

public class Universe {
    public final int theAnswer;

    public enum Planet {
        // ...
        EARTH(...);
        // ...

        // ... constructor etc.

        public int deepThought() {
            // -> "No enclosing instance of type 'Universe' is accessible in this scope"
            return Universe.this.theAnswer;
        }
    }

    public Universe(int locallyUniversalAnswer) {
        this.theAnswer = locallyUniversalAnswer;
    }
}