读取java中的文件并将其内容放入二维数组中

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;

public static String[][] readFileTo2DArray(String filePath) {
    String[][] array = null;
    try {
        BufferedReader reader = new BufferedReader(new FileReader(filePath));
        String line;
        int rowCount = 0;
        int colCount = 0;
        while ((line = reader.readLine()) != null) {
            String[] values = line.split(",");
            if (array == null) {
                rowCount = 1;
                colCount = values.length;
                array = new String[rowCount][colCount];
            } else {
                rowCount++;
                String[][] tempArray = new String[rowCount][colCount];
                System.arraycopy(array, 0, tempArray, 0, array.length);
                array = tempArray;
            }
            for (int i = 0; i < values.length; i++) {
                array[rowCount - 1][i] = values[i];
            }
        }
        reader.close();
    } catch (IOException e) {
        e.printStackTrace();
    }
    return array;
}

String filePath = "path/to/your/file.txt";
String[][] array = readFileTo2DArray(filePath);