不加public为什么编译不过 package zh.codegym.task.task13.task1301; 
package zh.codegym.task.task13.task1301;

/*
啤酒
*/

public class Solution {

    public static void main(String[] args) throws Exception {
    }

    public interface Drinker {
        void askForMore(String message);

        void sayThankYou();

        boolean isReadyToGoHome();
    }

    public interface Alcoholic extends Drinker {
        boolean READY_TO_GO_HOME = false;

        void sleepOnTheFloor();
    }

    public static class BeerLover implements Alcoholic {

        public void askForMore(String message) {
        }

        public void sayThankYou() {
        }

        public boolean isReadyToGoHome() {
            return Alcoholic.READY_TO_GO_HOME;
        }

        public void sleepOnTheFloor() {
        }
    }
}