java - 如何在我的演示代码中访问以下方法 "addPoints()"和 "getScores()"

Question

我无法理解如何从类RatingCalculator 访问方法getScore() 以及如何从类CalculatorForBoxing 访问重写的方法addPoints()。

public class Calculator {
    class Score{
        int score;
        int playerId; 
    }

    class RatingCalculator extends Score {
        ArrayList<CalculatorForBoxing> newGame;
        public CalculatorForBoxing boxer1;
        public CalculatorForBoxing boxer2;


        ArrayList<Integer> getScores(){
            return myArrayList;
        }
    }

这是针对特定运动的计算器

     class CalculatorForBoxing extends RatingCalculator implements RateByAccumulatingPoints {

        int forbiddenKicks;
        int successfullKicks;

        public  CalculatorForBoxing  (int playerId, int score, int forbiddenKicks, int successfullKicks ) {
            this.playerId = playerId;
            this.score = score;
            this.forbiddenKicks = forbiddenKicks;
            this.successfullKicks = successfullKicks;
            }
        public void setPlayerId(int playerId) {
            this.playerId = playerId;
        }

        public int getPlayerId() {
            return playerId;
        }
        public void setScore(int score) {
            this.score = score;
        }
        public int getScore() {
            return score;
        }

        @Override
        public void addPoints(int playerId, int points) {
            //some code
            }
        }
    interface RateByAccumulatingPoints {
         void addPoints(int playerId, int points );
        }

这里我需要演示计算器如何适用于不同类型的运动

    class Judge extends RatingCalculator  {

        // here my simple scenario;
        void rate(RatingCalculator rc){
            newGame = new ArrayList<CalculatorForBoxing>();
            newGame.add(boxer1 = new CalculatorForBoxing(01, 0, 0, 4));
            newGame.add(boxer2 = new CalculatorForBoxing(02, 0, 0, 5));
            newGame.addPoints(01, 20); //haven't access here
            newGame.getScores();       //haven't access here
        }
    }

Answer 1

在您的代码中，newGame 是一个数组列表，而不是类对象，这就是您无法调用 addPoints 和 getScores 的原因。

在这种情况下，您只需调用基类中的 getScores() 即可。但是，您需要将函数 addPoints 添加到基类中，以便能够从扩展它的类中调用它。