java - 如何将一个对象放入数组中

Question

如何将对象放入数组中？这是我的数组。

public static Player [] playerArray;
Player[] playerArray = new Player [2];

玩家

public class Player {
    private String wpm;
    private String mistakes;
    private String time;

    public Player (String nwpm,String nmistakes, String ntime){
        wpm = nwpm;
        mistakes = nmistakes;
        time = ntime;
    }   

    public String getWPM(){
        return wpm;
    }
    public String getMistakes(){
        return mistakes;
    }
    public String getTime(){
        return time;
    }
}

我一直收到此错误

Exception in thread "main" java.lang.NullPointerException

每当我尝试使用播放器时。我做错什么了吗？您还需要什么吗？

编辑:添加错误发生的位置

public void setPlayer1(Player p){
    p1WPM.setText("8");
    p1Mis.setText(p.getMistakes());
    p1Time.setText(p.getTime());
}

Answer 1

例如，要在数组中添加 Player 对象，您可以执行以下操作:

Player[] playerArray = new Player [2];

//Create new Player object using the defined constructor
p = new Player("a","b","c");

// Assign p to 1st index of array
playerArray[0] = p;