Question

我想将文本的双值放在2d数组上。我的文本有双重和字符串值

我的文字

deneme deneme 4.5 5.5 6.6 7.5 9.9 9.9

dsdsa sddsf 9.9 8.7 7.5 8.8 4.4 6.5

来自字符串的extraxt double值。 我的节目输出

4.5 5.5 6.6 7.5 9.9 9.9 9.9 8.7 7.5 8.8 4.4 6.5

怎么能做我的输出六重奏。如果ı能做到这一点，ı将对每一行进行排序

第一线：4.5 5.5 6.6 7.5 9.9 9.9

第二行：9.9 8.7 7.5 8.8 4.4 6.5

public static void main(String[] args) throws IOException {

    ArrayList<String> puan;
    puan = okuDiziyeKoy("C:\\deneme\\HW.txt");
    System.out.format("%d kayıt okundu.%n", puan.size());

    for (int j = 0; j < puan.size(); j++) {

        String point = puan.get(j);

        String[] edit = point.split("[\\{\\}\\)]");

        for (String s : edit) {

            String a = s.replaceAll("[\\}\\-\\>\\>\\]\\[\\#\\*\\{]+", "");
            String b = a.replaceAll("[\\.]+", ",");
            Scanner scanner = new Scanner(b);

            while (scanner.hasNext()) {

                if (scanner.hasNextDouble()) {

                    Double doubleValue = scanner.nextDouble();
                    List<Double> numbers = new ArrayList<Double>();
                    numbers.add(doubleValue);
                    // System.out.println(Arrays.deepToString(numbers.toArray()));

                    final int col = 6;
                    final int rows = numbers.size() % col == 0 ? numbers.size() / col : numbers.size() / col + 1;
                    double[][] deneme = new double[rows][col];
                    for (int i = 0; i < rows; i++) {
                        for (int k = 0; k < col; k++) {
                            if (i == rows - 1 && k >= numbers.size() % col) 
                                break;
                            deneme[i][k] = numbers.get(k + col * i);       
                            System.out.print( deneme[i][k]+ " ");
                        }// for k end
                        System.out.println(); // go to next line
                    } // for i end

                }// if scan end

                else {

                    //if it is string comes value here
                    String stringValue = scanner.next();

                }// if scan end

            }// while end

        }// for string s

    }// for end

}// main end

Answer 1

在内部循环（k循环）之后引入换行符，使用System.out.println()。

 for (int i = 0; i < numbers.size(); i++) {
      for (int k = 0; k < numbers.size(); k++) {
         deneme[i][k] = numbers.get(k + (numbers.size() * i));       
         System.out.print( deneme[i][k]+ " ");
      }// for k end
      System.out.println(); // to introduce a newline
 } // for i end

Answer 2

将元素还原到deneme时，由于deneme[0]从k到0，所有元素都会被放入numbers.size() - 1。您可以修改如下：

final int col = 6;
final int rows = numbers.size() % col == 0 ? numbers.size() / col : numbers.size() / col + 1;
double[][] deneme = new double[rows][col];
for (int i = 0; i < rows; i++) {
    for (int k = 0; k < col; k++) {
        if (i == rows - 1 && k >= numbers.size() % col) // UPDATE: last line may not contain `col` sized elements
            break;
        deneme[i][k] = numbers.get(k + col * i);       
        System.out.print( deneme[i][k]+ " ");
    }// for k end
    System.out.println(); // go to next line
} // for i end

放双值2d数组读取文本

2 个答案: