在java中复制对象

我想对一个对象执行深度复制，

clone

函数是否工作到这种程度，或者我是否必须创建一个函数来物理复制它，并返回指向它的指针？就是我要

Board tempBoard = board.copy();

这会将board对象复制到tempBoard中，其中board对象包含：

public interface Board {
    Board copy();
}

public class BoardConcrete implements Board {
    @override
    public Board copy() {
      //need to create a copy function here
    }

    private boolean isOver = false;
    private int turn;
    private int[][] map;
    public final int width, height;


}

界面和方法是为制作对象的副本而设计的。但是，为了进行深度复制，您必须自己实现

clone（）

public class Board {
    private boolean isOver = false;
    private int turn;
    private int[][] map;
    public final int width, height;
    @Override
    public Board clone() throws CloneNotSupportedException {
      return new Board(isOver, turn, map.clone(), width, height);
    }
    private Board(boolean isOver, int turn, int[][] map, int width, int height) {
      this.isOver = isOver;
      this.turn = turn;
      this.map = map;
      this.width = width;
      this.height = height;
    }
}