所以我正在研究这个8益智游戏，我需要设置一个初始状态。所以我要说输入“1b2 345 678”，我想做各种搜索方法并移动各个部分（特别是b（空白）部分）。所以我想在矩阵中表示给定的输入，如： 1 b 2 3 4 5 6 7 8
所以我写了下面的代码：
public class EightPuzzle {
String[][] gameBoard = new String[3][3];
String bLocation;
String board;
/*public void ReadFromTxt(String file) throws FileNotFoundException, IOException {
String read;
FileReader f = new FileReader(file);
int i = 0;
int j;
BufferedReader b = new BufferedReader(f);
System.out.println("Loading puzzle from file...");
while((read = b.readLine())!=null){
if(read.length()==3){
for(j=0;j<3;j++){
board[i][j] = (int)(read.charAt(j)-48);
}
}
i++;
}
b.close();
System.out.println("Puzzle loaded!");
}*/
public String[][] setState(String board){
gameBoard[0][0] = board.substring(0,1);
gameBoard[0][1] = board.substring(1,2);
gameBoard[0][2] = board.substring(2,3);
gameBoard[1][0] = board.substring(4,5);
gameBoard[1][1] = board.substring(5,6);
gameBoard[1][2] = board.substring(6,7);
gameBoard[2][0] = board.substring(8,9);
gameBoard[2][1] = board.substring(9,10);
gameBoard[2][2] = board.substring(10,11);
System.out.println(gameBoard);
return gameBoard;
}
public static void main (String[]args){
EightPuzzle b1=new EightPuzzle();
b1.setState("b12 345 678");
}
}
但是当我运行它时，它只显示我的gameBoard存储为：[[Ljava.lang.String; @ 15db9742我做错了什么？