硬编码二维数组错误？

问题描述：

import java.util.Scanner; 
public class SudokuPermuter { 
    public static void main(String[] args) { 
     Scanner input = new Scanner(System.in); 
     System.out.println("Welcome to Sudoku Permuter.\n"); 

     int [] [] sudoku = new int[] [] { 
      { 0, 8, 0, 4, 0, 2, 0, 6, 0 }, 
      { 0, 3, 4, 0, 0, 0, 9, 1, 0 }, 
      { 9, 6, 0, 0, 0, 0, 0, 8, 4 }, 
      { 0, 0, 0, 2, 1, 6, 0, 0, 0 }, 
      { 2, 0, 0, 0, 0, 9, 6, 0, 0 }, 
      { 0, 1, 0, 3, 5, 7, 0, 0, 8 }, 
      { 8, 4, 0, 0, 0, 0, 0, 7, 5 }, 
      { 0, 2, 6, 0, 0, 0, 1, 3, 0 }, 
      { 0, 9, 0, 7, 0, 1, 0, 4, 0 } 
     } 

     for (int row = 0; row < 10; row++) { 
      for (int column = 0; column < 10; column++) { 
       System.out.print(sudoku[row] [column] + " "); 
      } 
      System.out.println(); 
     } 
    } 
}

我试图进入一个数独谜题将被打印出来，并说有希望在最后一行之后分号{ 0, 9, 0, 7, 0, 1, 0, 4, 0 }硬编码二维数组错误？

但是，当我把分号，它需要支架以结束整个字符串参数方法。我不知道为什么。

答

int [] [] sudoku = new int[] [] { 
     { 0, 8, 0, 4, 0, 2, 0, 6, 0 }, 
     { 0, 3, 4, 0, 0, 0, 9, 1, 0 }, 
     { 9, 6, 0, 0, 0, 0, 0, 8, 4 }, 
     { 0, 0, 0, 2, 1, 6, 0, 0, 0 }, 
     { 2, 0, 0, 0, 0, 9, 6, 0, 0 }, 
     { 0, 1, 0, 3, 5, 7, 0, 0, 8 }, 
     { 8, 4, 0, 0, 0, 0, 0, 7, 5 }, 
     { 0, 2, 6, 0, 0, 0, 1, 3, 0 }, 
     { 0, 9, 0, 7, 0, 1, 0, 4, 0 } 
    };

答

你需要第二右括号后的分号（结束赋值语句）：

int [] [] sudoku = new int[] [] { 
     { 0, 8, 0, 4, 0, 2, 0, 6, 0 }, 
     { 0, 3, 4, 0, 0, 0, 9, 1, 0 }, 
     { 9, 6, 0, 0, 0, 0, 0, 8, 4 }, 
     { 0, 0, 0, 2, 1, 6, 0, 0, 0 }, 
     { 2, 0, 0, 0, 0, 9, 6, 0, 0 }, 
     { 0, 1, 0, 3, 5, 7, 0, 0, 8 }, 
     { 8, 4, 0, 0, 0, 0, 0, 7, 5 }, 
     { 0, 2, 6, 0, 0, 0, 1, 3, 0 }, 
     { 0, 9, 0, 7, 0, 1, 0, 4, 0 } 
    } ;

答

无需构造。它可以被实例化这样的...

int[][] sudoku = { 
    { 0, 8, 0, 4, 0, 2, 0, 6, 0 }, 
    { 0, 3, 4, 0, 0, 0, 9, 1, 0 }, 
    { 9, 6, 0, 0, 0, 0, 0, 8, 4 }, 
    { 0, 0, 0, 2, 1, 6, 0, 0, 0 }, 
    { 2, 0, 0, 0, 0, 9, 6, 0, 0 }, 
    { 0, 1, 0, 3, 5, 7, 0, 0, 8 }, 
    { 8, 4, 0, 0, 0, 0, 0, 7, 5 }, 
    { 0, 2, 6, 0, 0, 0, 1, 3, 0 }, 
    { 0, 9, 0, 7, 0, 1, 0, 4, 0 } 
} ;

答

也是你的阵列引发异常ArrayIndexOutOfBoundsException异常

你需要让你的阵列更大或改变循环，以9 inested 10

答

我想你应该当手工填充表格时，总共选择一种更方便的方式来表示您的数独：例如字符串，稍后拆分的字符串，例如填充更方便。
经过（非常简单）的转换后，你有你的数组。

（好吧，我使用的JavaScript符号在这里，转换应该不难。）

var oneSudokuStrings = []; 
var sl=0; 
oneSudokuStrings [sl++] = " O 8 0 4 0 2 0 6 0 "; 
oneSudokuStrings [sl++] = " 0 3 4 0 0 0 9 1 0 "; 
oneSudokuStrings [sl++] = " 9 6 0 0 0 0 0 8 4 "; 
oneSudokuStrings [sl++] = " 0 0 0 2 1 6 0 0 0 "; 
oneSudokuStrings [sl++] = " 2 0 0 0 0 9 6 0 0 "; 
oneSudokuStrings [sl++] = " 0 1 0 3 5 7 0 0 8 "; 
oneSudokuStrings [sl++] = " 8 4 0 0 0 0 0 7 5 "; 
oneSudokuStrings [sl++] = " 0 2 6 0 0 0 1 3 0 "; 
oneSudokuStrings [sl++] = " 0 9 0 7 0 1 0 4 0 "; 

var oneSudoku = []; 
for (var i=0; i<oneSudokuStrings.length; i++) { 
    oneSudoku[i]=oneSudokuStrings[i].match(/[^ ]+/g); 
}

硬编码二维数组错误？

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