如何在java中拆分数字文件？

Question

I am trying to convert a file full of numbers (9x9) into an a readable array based off columns and rows. It is for a sudoku game builder. The file reads as so:

0,0,2,9,8,0,5,0,0
4,0,0,0,7,0,0,1,3
0,3,9,6,0,4,0,7,0
2,0,0,0,5,6,4,0,0
8,4,0,3,0,0,2,0,1
9,0,7,0,0,1,0,8,6
6,0,0,7,0,5,1,3,0
0,9,1,4,0,0,0,0,5
0,2,0,0,3,0,6,0,8

Where I'm using the "0's" as blank spaces. I want to split the numbers at the commas so for the first row I want it to read: gameBoard[0] = [0,0,2,9,8,0,5,0,0] or as gameBoard[0][4] = [9]. The array I'm using is gameBoard[][].

Some people told me it would be helpful to include some code I tried so here it is:

        for (int i = 0; i < 9; i++) {
            for (int j = 0; j < 9; j++) {
                gameBoard[i][j] = game.split(",");
            }
        }

This section of code is within a method that is called through a constructor.

Answer 1

A little start-help to a new contributor ..

    String[][] gameBoard = new String[9][9];
    File f = new File("zz_play9.txt");               
    try {
        BufferedReader b = new BufferedReader(new FileReader(f));

        String readLine = "";        
        int linecounter =0;
        while ((readLine = b.readLine()) != null) {
            System.out.println(readLine);
            gameBoard[linecounter++] = readLine.split(",");
        }
        b.close();
    } catch (IOException ex) {
        Logger.getLogger(zz_play9.class.getName()).log(Level.SEVERE, null, ex);
    } 

I have entered your start-data into a file called zz_play9.txt.

By running the program you get:

0,0,2,9,8,0,5,0,0
4,0,0,0,7,0,0,1,3
0,3,9,6,0,4,0,7,0
2,0,0,0,5,6,4,0,0
8,4,0,3,0,0,2,0,1
9,0,7,0,0,1,0,8,6
6,0,0,7,0,5,1,3,0
0,9,1,4,0,0,0,0,5
0,2,0,0,3,0,6,0,8

and the array gameBoard[][] holds the desired data. Have fun.