从其他类中获取一个对象作为数组

Question

所以我需要一个类highscoreEntry来保存一个玩家名和他们的分数。在另一个类highscoretable中，我必须列出玩家的名字和分数，并将分数从最高到最低排序。我如何只得到int分数来整理它呢？

public class HighscoreEntry {

    private String name;
    private int score;

    public HighscoreEntry(String name, int score){
        this.name=name;
        this.score=score;
    }

    public int getScore(){
        return this.score;
    }

    public String toString(){
        return "Player: "+this.name+", score: "+this.score;
    }

}

public class HighscoreTable {

    private HighscoreEntry [] player;

    public HighscoreTable(HighscoreEntry [] p){
        player = new HighscoreEntry[p.length];
        for(int i=0;i<p.length;i++){
            player[i]=p[i];
            if (player.getScore()[i]>player.getScore()[i+1]){
                // i wanted here to sort out the score only  but it doesn't work with getScore()
            }
        }
    }

}

Answer 1

您错误地访问了数组。不能对数组调用非数组方法。

if (player.getScore()[i]>player.getScore()[i+1])

变量player是一个数组，因此不能对其调用getscore。您必须首先使用player[i]访问对象，然后像下面这样调用方法

player[i].getScore();