java - 类方法不起作用

Question

由于某种原因，TicTacToeBoard 类中的 Move() 函数无法正常工作。

主要内容如下:

import java.util.*;

public class TicTakToe {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);

        System.out.println("What player are you(X or O)?");
        String player = in.next();
        System.out.println("What row do you want to play in(top, middle, bottom)?");
        String row = in.next();
        System.out.println("What column do you want to play in(left, center, right)?");
        String column = in.next();

        System.out.println(player + ", " + row + ", " + column);
        TicTacToeBoard one = new TicTacToeBoard(player, row, column);
        one.Move();
        one.printBoard();
        int counter = 1;

        while(counter <= 9){

            System.out.println("What player are you(X or O)?");
            player = in.next();
            System.out.println("What row do you want to play in(top, middle, bottom)?");
            row = in.next();
            System.out.println("What column do you want to play in(left, center, right)?");
            column = in.next();

            System.out.println(player + ", " + row + ", " + column);

            one.Move();
            counter ++;
            one.printBoard();

        }
    }
}

这是类(class):

class TicTacToeBoard {

    private int[][]board = {
        {0,0,0},
        {0,0,0},
        {0,0,0} };

    String row, column, player;

    //Constructor
    public TicTacToeBoard(String r, String c, String p){
        row = r;
        column = c;
        player = p;
        }


    public void Move(){
        if (row == "top" && column == "left" && player == "X"){
            board[0][0] = 1;
        }
        if (row == "top" && column == "center" && player == "X"){
            board[0][1] = 1;
        }
        if (row == "top" && column == "right" && player == "X"){
            board[0][2] = 1;
        } 


        if (row == "middle" && column == "left" && player == "X"){
            board[1][0] = 1;
        }
        if (row == "middle" && column == "center" && player == "X"){
            board[1][1] = 1;
        }
        if (row == "middle" && column == "right" && player == "X"){
            board[1][2] = 1;
        } 


        if (row == "bottom" && column == "left" && player == "X"){
            board[2][0] = 1;
        }
        if (row == "bottom" && column == "center" && player == "X"){
            board[2][1] = 1;
        }
        if (row == "bottom" && column == "right" && player == "X"){
            board[2][2] = 1;
        } 





        if (row == "top" && column == "left" && player == "Y"){
            board[0][0] = 1;
        }
        if (row == "top" && column == "center" && player == "Y"){
            board[0][1] = 1;
        }
        if (row == "top" && column == "right" && player == "Y"){
            board[0][2] = 1;
        } 


        if (row == "middle" && column == "left" && player == "Y"){
            board[1][0] = 1;
        }
        if (row == "middle" && column == "center" && player == "Y"){
            board[1][1] = 1;
        }
        if (row == "middle" && column == "right" && player == "Y"){
            board[1][2] = 1;
        } 


        if (row == "bottom" && column == "left" && player == "Y"){
            board[2][0] = 1;
        }
        if (row == "bottom" && column == "center" && player == "Y"){
            board[2][1] = 1;
        }
        if (row == "bottom" && column == "right" && player == "Y"){
            board[2][2] = 1;
        }
    }

    public void printBoard(){
        for(int i = 0;i <= 2;i++){
            for(int j = 0; j <= 2;j++){
                System.out.print(board[i][j]);
            }
            System.out.println();
        }

    }
}

输出为:

你是什么玩家(X或O)？

X

你想玩哪一行(上、中、下)？

顶部

您想在哪一列进行游戏(左、中、右)？

左

X，顶部，左侧

000000000

你是什么玩家(X或O)？

由于某种原因，无论我输入什么，主板最终都会全为零。关于我做错了什么有什么想法吗？

Answer 1

我认为首先您需要使用 String.equals(String) 方法替换 row == "top" 和其他字符串比较