java - 如何在数独程序 Java 中创建子网格和分隔线？

Question

我正在创建一个数独帮助程序，帮助用户解决难题。

如何创建水平“=”和垂直“|”分隔线以便将网格分解为子网格？对于水平分隔线，对于外部(行)循环，分隔线添加在第 2 行和第 5 行之后。对于垂直分隔线，内部(列)循环，在第 2 列和第 5 列之后添加竖线“|”。

最后，如何为每一行和每一列创建标题，以便用户通过其 id 识别每一行和列？

public class Sudoku {
   public static int rows = 9;
   public static int cols = 9;
   public static int[][] board = new int[rows][cols];

   public static void show() {
   for (int rows=1; rows<board.length; rows++) {
         for (int cols=1; cols<board.length; cols++) {
         board[rows][cols] = '0';
      }
   } 
}
   public static void main(String[] args) {
   //print out the contents of board array
      int board[][] = new int[9][9];

      for (int rows = 0; rows < 9; rows++) {
         for (int cols = 0; cols < 9; cols++) {
         System.out.print(board [rows][cols] + " ");
         }

         System.out.println("");
      }
      show();


   }
}

我的程序的输出:

0 0 0 0 0 0 0 0 0 
0 0 0 0 0 0 0 0 0 
0 0 0 0 0 0 0 0 0 
0 0 0 0 0 0 0 0 0 
0 0 0 0 0 0 0 0 0 
0 0 0 0 0 0 0 0 0 
0 0 0 0 0 0 0 0 0 
0 0 0 0 0 0 0 0 0 
0 0 0 0 0 0 0 0 0

Answer 1

这是我前段时间写的，只需将 sudoku 数组更改为您的数组名称(board)即可。

for(int x = 0; x < 9; x++){
        System.out.print("|     |     |     ||     |     |     ||     |     |     |\n");
        for(int y = 0; y < 9; y++){
            if(y == 0 || y == 3 || y == 6) System.out.print("|");
            System.out.print("  " + sudoku[x][y] + "  |");
        }
        System.out.print("\n");     
        System.out.print("|     |     |     ||     |     |     ||     |     |     |\n");
        if(x == 2 || x == 5)
            System.out.print("=========================================================");
        else
            System.out.print("---------------------------------------------------------");
        System.out.print("\n");
    }

这将创建如下内容:

---------------------------------------------------------
|     |     |     ||     |     |     ||     |     |     |
|  0  |  0  |  0  ||  0  |  0  |  0  ||  0  |  0  |  0  |
|     |     |     ||     |     |     ||     |     |     |
---------------------------------------------------------
|     |     |     ||     |     |     ||     |     |     |
|  0  |  0  |  8  ||  0  |  6  |  5  ||  0  |  0  |  0  |
|     |     |     ||     |     |     ||     |     |     |
---------------------------------------------------------
|     |     |     ||     |     |     ||     |     |     |
|  0  |  3  |  0  ||  9  |  0  |  4  ||  5  |  0  |  8  |
|     |     |     ||     |     |     ||     |     |     |
=========================================================
|     |     |     ||     |     |     ||     |     |     |
|  0  |  0  |  0  ||  0  |  2  |  0  ||  4  |  5  |  0  |
|     |     |     ||     |     |     ||     |     |     |
---------------------------------------------------------
|     |     |     ||     |     |     ||     |     |     |
|  0  |  0  |  0  ||  0  |  0  |  0  ||  0  |  0  |  6  |
|     |     |     ||     |     |     ||     |     |     |
---------------------------------------------------------
|     |     |     ||     |     |     ||     |     |     |
|  0  |  0  |  7  ||  0  |  0  |  0  ||  3  |  0  |  0  |
|     |     |     ||     |     |     ||     |     |     |
=========================================================
|     |     |     ||     |     |     ||     |     |     |
|  1  |  2  |  0  ||  0  |  4  |  6  ||  0  |  7  |  0  |
|     |     |     ||     |     |     ||     |     |     |
---------------------------------------------------------
|     |     |     ||     |     |     ||     |     |     |
|  0  |  0  |  3  ||  0  |  8  |  0  ||  1  |  0  |  0  |
|     |     |     ||     |     |     ||     |     |     |
---------------------------------------------------------
|     |     |     ||     |     |     ||     |     |     |
|  6  |  0  |  0  ||  7  |  5  |  0  ||  0  |  0  |  0  |
|     |     |     ||     |     |     ||     |     |     |
---------------------------------------------------------